// Start position for the map 
		
	var lat=51.4711188261394       
	var lon=-0.45
                
// Zoom level of map
		
	var zoom = 12
                        
	var map; //complex object of type OpenLayers.Map


//Initialise the 'map' object
function init() {
		
			map = new OpenLayers.Map ("map", {
				controls:[
					new OpenLayers.Control.Navigation(),
					new OpenLayers.Control.PanZoomBar(),
					new OpenLayers.Control.MousePosition(),
					//new OpenLayers.Control.LayerSwitcher.maximiseControl(),
					new OpenLayers.Control.Attribution()],

				
				maxExtent: new OpenLayers.Bounds(-20037508.34,-20037508.34,20037508.34,20037508.34),
				maxResolution: 156543.0399,
				numZoomLevels: 19,
				units: 'm',
				projection: new OpenLayers.Projection("EPSG:900913"),
				displayProjection: new OpenLayers.Projection("EPSG:4326")
			} );
	
			
			// Add layerswitcher - which is visable at default

				var layer_switcher = new OpenLayers.Control.LayerSwitcher();
				map.addControl(layer_switcher);
				layer_switcher.maximizeControl();


			// Define the map layer
		          
				layerMapnik = new OpenLayers.Layer.OSM.Mapnik("Mapnik");
				map.addLayer(layerMapnik);

				
			// Define kml contour layer
		
				var kml = new OpenLayers.Layer.GML("dB(A)MAX Noise Contours...... Landings on Northern Runway Only", "kml/contour_fill.kml",	
									{projection: new OpenLayers.Projection("EPSG:4326"), 
									format: OpenLayers.Format.KML, 
									formatOptions: { 
                              						extractStyles: true,                         
      									extractAttributes: true}      
                      					}); 
				kml.visibility = false;			
				map.addLayer(kml);
						

			

			
			// Define the markers layer
			
				var layerMarkers = new OpenLayers.Layer.Markers(" Audio Markers");
				layerMarkers.visibility = true;
				map.addLayer(layerMarkers);	
	
					
			var lonLat = new OpenLayers.LonLat(lon, lat).transform(new OpenLayers.Projection("EPSG:4326"), map.getProjectionObject());
			map.setCenter (lonLat, zoom);
	
       						
			//create feature1 plus click event
			//Not included as AudioMarker due to interference, included in analysis
			//
			//		var lat1=51.483   			
			//		var lon1=-0.579743			
			//		var lonLat1 = new OpenLayers.LonLat(lon1, lat1).transform(new OpenLayers.Projection("EPSG:4326"), map.getProjectionObject());
			//								
			//		feature1 = new OpenLayers.Feature(layerMarkers,lonLat1,{icon: new OpenLayers.Icon('images/speaker.png')})
			//	
			//		marker1 = feature1.createMarker();
			//	
			//		layerMarkers.addMarker(marker1);
			//	
			//		marker1.events.register("click", marker1, click1)
			//	
			//		function click1(evt) {
			//																					
			//					soundManager.createSound('marker1','http://audioboo.fm/boos/26367-station.mp3')
			//					
			//					if (soundManager.getSoundById('marker1').playState == 0) {
			//							soundManager.stopAll()
			//							soundManager.play('marker1')
			//															
			//							}
			//					
			//					else	{
			//							soundManager.stop('marker1')
			//							}														 							
			//						}
							
			//create feature2 plus click event
			
					var lat2=51.4885984374377        			
					var lon2=-0.592854022979736
					var lonLat2 = new OpenLayers.LonLat(lon2, lat2).transform(new OpenLayers.Projection("EPSG:4326"), map.getProjectionObject());
											
					feature2 = new OpenLayers.Feature(layerMarkers,lonLat2,{icon: new OpenLayers.Icon('images/speaker.png')})
				
					marker2 = feature2.createMarker();
				
					layerMarkers.addMarker(marker2);
				
					marker2.events.register("click", marker2, click2)
				
					function click2(evt) {
																								
								soundManager.createSound('marker2','http://audioboo.fm/boos/26354-park.mp3')
								
								if (soundManager.getSoundById('marker2').playState == 0) {
										soundManager.stopAll()
										soundManager.play('marker2')
																		
										}
								
								else	{
										soundManager.stop('marker2')
										}														 							
									}
						
			//create feature3 plus click event
			//Not included as AudioMarker due to interference, included in analysis
			//
			//		var lat3=51.4886452011111
			//		var lon3=-0.593047142028808					
			//		var lonLat3 = new OpenLayers.LonLat(lon3, lat3).transform(new OpenLayers.Projection("EPSG:4326"), map.getProjectionObject());
			//								
			//		feature3 = new OpenLayers.Feature(layerMarkers,lonLat3,{icon: new OpenLayers.Icon('images/speaker.png')})
			//	
			//		marker3 = feature3.createMarker();
			//	
			//		layerMarkers.addMarker(marker3);
			//	
			//		marker3.events.register("click", marker3, click3)
			//	
			//		function click3(evt) {
			//																					
			//					soundManager.createSound('marker3','http://audioboo.fm/boos/26351-park.mp3')
			//					
			//					if (soundManager.getSoundById('marker3').playState == 0) {
			//							soundManager.stopAll()
			//							soundManager.play('marker3')
			//															
			//							}
			//					
			//					else	{
			//							soundManager.stop('marker3')
			//							}														 							
			//						}			
											
											
			//create feature4 plus click event
			//Not included as AudioMarker due to interference, included in analysis
			//
			//		var lat4=51.4823851228972       			
			//		var lon4=-0.582350492477416				
			//		var lonLat4 = new OpenLayers.LonLat(lon4, lat4).transform(new OpenLayers.Projection("EPSG:4326"), map.getProjectionObject());
			//								
			//		feature4 = new OpenLayers.Feature(layerMarkers,lonLat4,{icon: new OpenLayers.Icon('images/speaker.png')})
			//	
			//		marker4 = feature4.createMarker();
			//	
			//		layerMarkers.addMarker(marker4);
			//	
			//		marker4.events.register("click", marker4, click4)
			//	
			//		function click4(evt) {
			//																					
			//					soundManager.createSound('marker4','http://audioboo.fm/boos/26342-river.mp3')
			//					
			//					if (soundManager.getSoundById('marker4').playState == 0) {
			//							soundManager.stopAll()
			//							soundManager.play('marker4')
			//															
			//							}
			//					
			//					else	{
			//							soundManager.stop('marker4')
			//							}														 							
			//						}
							
			//create feature5 plus click event
			
					var lat5=51.4823249899106        			
					var lon5=-0.582339763641357					
					var lonLat5 = new OpenLayers.LonLat(lon5, lat5).transform(new OpenLayers.Projection("EPSG:4326"), map.getProjectionObject());
											
					feature5 = new OpenLayers.Feature(layerMarkers,lonLat5,{icon: new OpenLayers.Icon('images/speaker.png')})
				
					marker5 = feature5.createMarker();
				
					layerMarkers.addMarker(marker5);
				
					marker5.events.register("click", marker5, click5)
				
					function click5(evt) {
																								
								soundManager.createSound('marker5','http://audioboo.fm/boos/26340-river.mp3')
								
								if (soundManager.getSoundById('marker5').playState == 0) {
										soundManager.stopAll()
										soundManager.play('marker5')
																		
										}
								
								else	{
										soundManager.stop('marker5')
										}														 							
									}
						
			//create feature6 plus click event
			
					var lat6=51.4823249899106					
					var lon6=-0.582339763641357				
					var lonLat6 = new OpenLayers.LonLat(lon6, lat6).transform(new OpenLayers.Projection("EPSG:4326"), map.getProjectionObject());
											
					feature6 = new OpenLayers.Feature(layerMarkers,lonLat6,{icon: new OpenLayers.Icon('images/speaker.png')})
				
					marker6 = feature6.createMarker();
				
					layerMarkers.addMarker(marker6);
				
					marker6.events.register("click", marker6, click6)
				
					function click6(evt) {
																								
								soundManager.createSound('marker6','http://audioboo.fm/boos/26338-river.mp3')
								
								if (soundManager.getSoundById('marker6').playState == 0) {
										soundManager.stopAll()
										soundManager.play('marker6')
																		
										}
								
								else	{
										soundManager.stop('marker6')
										}														 							
									}			
			//create feature7 plus click event
			
					var lat7=51.4819842348217        			
					var lon7=-0.579174757003784					
					var lonLat7 = new OpenLayers.LonLat(lon7, lat7).transform(new OpenLayers.Projection("EPSG:4326"), map.getProjectionObject());
											
					feature7 = new OpenLayers.Feature(layerMarkers,lonLat7,{icon: new OpenLayers.Icon('images/speaker.png')})
				
					marker7 = feature7.createMarker();
				
					layerMarkers.addMarker(marker7);
				
					marker7.events.register("click", marker7, click7)
				
					function click7(evt) {
																								
								soundManager.createSound('marker7','http://audioboo.fm/boos/26335-datchet.mp3')
								
								if (soundManager.getSoundById('marker7').playState == 0) {
										soundManager.stopAll()
										soundManager.play('marker7')
																		
										}
								
								else	{
										soundManager.stop('marker7')
										}														 							
									}
							
			//create feature8 plus click event
			
					var lat8=51.4820443682577	
					var lon8=-0.580108165740966					
					var lonLat8 = new OpenLayers.LonLat(lon8, lat8).transform(new OpenLayers.Projection("EPSG:4326"), map.getProjectionObject());
											
					feature8 = new OpenLayers.Feature(layerMarkers,lonLat8,{icon: new OpenLayers.Icon('images/speaker.png')})
				
					marker8 = feature8.createMarker();
				
					layerMarkers.addMarker(marker8);
				
					marker8.events.register("click", marker8, click8)
				
					function click8(evt) {
																								
								soundManager.createSound('marker8','http://audioboo.fm/boos/26334-datchet.mp3')
								
								if (soundManager.getSoundById('marker8').playState == 0) {
										soundManager.stopAll()
										soundManager.play('marker8')
																		
										}
								
								else	{
										soundManager.stop('marker8')
										}														 							
									}
						
			//create feature9 plus click event
			
					var lat9=51.4820443682577					
					var lon9=-0.580108165740966			
					var lonLat9 = new OpenLayers.LonLat(lon9, lat9).transform(new OpenLayers.Projection("EPSG:4326"), map.getProjectionObject());
											
					feature9 = new OpenLayers.Feature(layerMarkers,lonLat9,{icon: new OpenLayers.Icon('images/speaker.png')})
				
					marker9 = feature9.createMarker();
				
					layerMarkers.addMarker(marker9);
				
					marker9.events.register("click", marker9, click9)
				
					function click9(evt) {
																								
								soundManager.createSound('marker9','http://audioboo.fm/boos/26332-datchet.mp3')
								
								if (soundManager.getSoundById('marker9').playState == 0) {
										soundManager.stopAll()
										soundManager.play('marker9')
																		
										}
								
								else	{
										soundManager.stop('marker9')
										}														 							
									}			
											
											
			//create feature10 plus click event
			
					var lat10=51.4729      			
					var lon10=-0.48957			
					var lonLat10 = new OpenLayers.LonLat(lon10, lat10).transform(new OpenLayers.Projection("EPSG:4326"), map.getProjectionObject());
											
					feature10 = new OpenLayers.Feature(layerMarkers,lonLat10,{icon: new OpenLayers.Icon('images/speaker.png')})
				
					marker10 = feature10.createMarker();
				
					layerMarkers.addMarker(marker10);
				
					marker10.events.register("click", marker10, click10)
				
					function click10(evt) {
																								
								soundManager.createSound('marker10','http://audioboo.fm/boos/36688-take-off-north-runway.mp3')
								
								if (soundManager.getSoundById('marker10').playState == 0) {
										soundManager.stopAll()
										soundManager.play('marker10')
																		
										}
								
								else	{
										soundManager.stop('marker10')
										}														 							
									}
							
			//create feature11 plus click event
			
					var lat11=51.4729        			
					var lon11=-0.48957					
					var lonLat11 = new OpenLayers.LonLat(lon11, lat11).transform(new OpenLayers.Projection("EPSG:4326"), map.getProjectionObject());
											
					feature11 = new OpenLayers.Feature(layerMarkers,lonLat11,{icon: new OpenLayers.Icon('images/speaker.png')})
				
					marker11 = feature11.createMarker();
				
					layerMarkers.addMarker(marker11);
				
					marker11.events.register("click", marker11, click11)
				
					function click11(evt) {
																								
								soundManager.createSound('marker11','http://audioboo.fm/boos/36690-rake-off-north-runway.mp3')
								
								if (soundManager.getSoundById('marker11').playState == 0) {
										soundManager.stopAll()
										soundManager.play('marker11')
																		
										}
								
								else	{
										soundManager.stop('marker11')
										}														 							
									}
						
			//create feature12 plus click event
			
					var lat12=51.4734					
					var lon12=-0.489518			
					var lonLat12 = new OpenLayers.LonLat(lon12, lat12).transform(new OpenLayers.Projection("EPSG:4326"), map.getProjectionObject());
											
					feature12 = new OpenLayers.Feature(layerMarkers,lonLat12,{icon: new OpenLayers.Icon('images/speaker.png')})
				
					marker12 = feature12.createMarker();
				
					layerMarkers.addMarker(marker12);
				
					marker12.events.register("click", marker12, click12)
				
					function click12(evt) {
																								
								soundManager.createSound('marker12','http://audioboo.fm/boos/36692-take-off-north-runway.mp3')
								
								if (soundManager.getSoundById('marker12').playState == 0) {
										soundManager.stopAll()
										soundManager.play('marker12')
																		
										}
								
								else	{
										soundManager.stop('marker12')
										}														 							
									}		
			
			//create feature13 plus click event
			//North runway landing - used in surface interpolation
			
					var lat13=51.4869					
					var lon13=-0.273206			
					var lonLat13 = new OpenLayers.LonLat(lon13, lat13).transform(new OpenLayers.Projection("EPSG:4326"), map.getProjectionObject());
											
					feature13 = new OpenLayers.Feature(layerMarkers,lonLat13,{icon: new OpenLayers.Icon('images/speaker.png')})
				
					marker13 = feature13.createMarker();
				
					layerMarkers.addMarker(marker13);
				
					marker13.events.register("click", marker13, click13)
					
									
					function click13(evt) {
																								
								soundManager.createSound('marker13','http://audioboo.fm/boos/36892-landing.mp3')
								
								if (soundManager.getSoundById('marker13').playState == 0) {
										soundManager.stopAll()
										soundManager.play('marker13')
																												
										}
								
								else	{
										soundManager.stop('marker13')
										}														 							
									}				


			//Features 14 thru 31 North runway landing - used in surface interpolation
								

			//create feature14 plus click event
			
					var lat14=51.4816					
					var lon14=-0.357903			
					var lonLat14 = new OpenLayers.LonLat(lon14, lat14).transform(new OpenLayers.Projection("EPSG:4326"), map.getProjectionObject());
											
					feature14 = new OpenLayers.Feature(layerMarkers,lonLat14,{icon: new OpenLayers.Icon('images/speaker.png')})
				
					marker14 = feature14.createMarker();
				
					layerMarkers.addMarker(marker14);
				
					marker14.events.register("click", marker14, click14)
					
									
					function click14(evt) {
																								
								soundManager.createSound('marker14','http://audioboo.fm/boos/47531-landing-aircraft.mp3')
								
								if (soundManager.getSoundById('marker14').playState == 0) {
										soundManager.stopAll()
										soundManager.play('marker14')
																												
										}
								
								else	{
										soundManager.stop('marker14')
										}														 							
									}		
									
			//create feature15 plus click event
			
					var lat15=51.4831					
					var lon15=-0.354598			
					var lonLat15 = new OpenLayers.LonLat(lon15, lat15).transform(new OpenLayers.Projection("EPSG:4326"), map.getProjectionObject());
											
					feature15 = new OpenLayers.Feature(layerMarkers,lonLat15,{icon: new OpenLayers.Icon('images/speaker.png')})
				
					marker15 = feature15.createMarker();
				
					layerMarkers.addMarker(marker15);
				
					marker15.events.register("click", marker15, click15)
					
									
					function click15(evt) {
																								
								soundManager.createSound('marker15','http://audioboo.fm/boos/47535-landing-aircraft.mp3')
								
								if (soundManager.getSoundById('marker15').playState == 0) {
										soundManager.stopAll()
										soundManager.play('marker15')
																												
										}
								
								else	{
										soundManager.stop('marker15')
										}														 							
									}
									
			//create feature16 plus click event
			
					var lat16=51.4829					
					var lon16=-0.35439	
					var lonLat16 = new OpenLayers.LonLat(lon16, lat16).transform(new OpenLayers.Projection("EPSG:4326"), map.getProjectionObject());
											
					feature16 = new OpenLayers.Feature(layerMarkers,lonLat16,{icon: new OpenLayers.Icon('images/speaker.png')})
				
					marker16 = feature16.createMarker();
				
					layerMarkers.addMarker(marker16);
				
					marker16.events.register("click", marker16, click16)
					
									
					function click16(evt) {
																								
								soundManager.createSound('marker16','http://audioboo.fm/boos/47537-landing-aircraft-air-transat.mp3')
								
								if (soundManager.getSoundById('marker16').playState == 0) {
										soundManager.stopAll()
										soundManager.play('marker16')
																												
										}
								
								else	{
										soundManager.stop('marker16')
										}														 							
									}
									
									
			//create feature17 plus click event
			
					var lat17=51.4823					
					var lon17=-0.354266	
					var lonLat17 = new OpenLayers.LonLat(lon17, lat17).transform(new OpenLayers.Projection("EPSG:4326"), map.getProjectionObject());
											
					feature17 = new OpenLayers.Feature(layerMarkers,lonLat17,{icon: new OpenLayers.Icon('images/speaker.png')})
				
					marker17 = feature17.createMarker();
				
					layerMarkers.addMarker(marker17);
				
					marker17.events.register("click", marker17, click17)
					
									
					function click17(evt) {
																								
								soundManager.createSound('marker17','http://audioboo.fm/boos/47540-landing-aircraft-bmi.mp3')
								
								if (soundManager.getSoundById('marker17').playState == 0) {
										soundManager.stopAll()
										soundManager.play('marker17')
																												
										}
								
								else	{
										soundManager.stop('marker17')
										}														 							
									}
									
									
			//create feature18 plus click event
			
					var lat18=51.4824					
					var lon18=-0.352136
					var lonLat18 = new OpenLayers.LonLat(lon18, lat18).transform(new OpenLayers.Projection("EPSG:4326"), map.getProjectionObject());
											
					feature18 = new OpenLayers.Feature(layerMarkers,lonLat18,{icon: new OpenLayers.Icon('images/speaker.png')})
				
					marker18 = feature18.createMarker();
				
					layerMarkers.addMarker(marker18);
				
					marker18.events.register("click", marker18, click18)
					
									
					function click18(evt) {
																								
								soundManager.createSound('marker18','http://audioboo.fm/boos/47548-landing-aircraft-ac.mp3')
								
								if (soundManager.getSoundById('marker18').playState == 0) {
										soundManager.stopAll()
										soundManager.play('marker18')
																												
										}
								
								else	{
										soundManager.stop('marker18')
										}														 							
									}
									
									
			//create feature19 plus click event
			
					var lat19=51.4808					
					var lon19=-0.352828
					var lonLat19 = new OpenLayers.LonLat(lon19, lat19).transform(new OpenLayers.Projection("EPSG:4326"), map.getProjectionObject());
											
					feature19 = new OpenLayers.Feature(layerMarkers,lonLat19,{icon: new OpenLayers.Icon('images/speaker.png')})
				
					marker19 = feature19.createMarker();
				
					layerMarkers.addMarker(marker19);
				
					marker19.events.register("click", marker19, click19)
					
									
					function click19(evt) {
																								
								soundManager.createSound('marker19','http://audioboo.fm/boos/47549-landing-aircraft-ek-a380.mp3')
								
								if (soundManager.getSoundById('marker19').playState == 0) {
										soundManager.stopAll()
										soundManager.play('marker19')
																												
										}
								
								else	{
										soundManager.stop('marker19')
										}														 							
									}



			//create feature20 plus click event
			
					var lat20=51.4813					
					var lon20=-0.352593
					var lonLat20 = new OpenLayers.LonLat(lon20, lat20).transform(new OpenLayers.Projection("EPSG:4326"), map.getProjectionObject());
											
					feature20 = new OpenLayers.Feature(layerMarkers,lonLat20,{icon: new OpenLayers.Icon('images/speaker.png')})
				
					marker20 = feature20.createMarker();
				
					layerMarkers.addMarker(marker20);
				
					marker20.events.register("click", marker20, click20)
					
									
					function click20(evt) {
																								
								soundManager.createSound('marker20','http://audioboo.fm/boos/47551-landing-aircraft-ba-small.mp3')
								
								if (soundManager.getSoundById('marker20').playState == 0) {
										soundManager.stopAll()
										soundManager.play('marker20')
																												
										}
								
								else	{
										soundManager.stop('marker20')
										}														 							
									}
									
									
			//create feature21 plus click event
			
					var lat21=51.4813					
					var lon21=-0.351644
					var lonLat21 = new OpenLayers.LonLat(lon21, lat21).transform(new OpenLayers.Projection("EPSG:4326"), map.getProjectionObject());
											
					feature21 = new OpenLayers.Feature(layerMarkers,lonLat21,{icon: new OpenLayers.Icon('images/speaker.png')})
				
					marker21 = feature21.createMarker();
				
					layerMarkers.addMarker(marker21);
				
					marker21.events.register("click", marker21, click21)
					
									
					function click21(evt) {
																								
								soundManager.createSound('marker21','http://audioboo.fm/boos/47554-landing-aircraft-ba-medium.mp3')
								
								if (soundManager.getSoundById('marker21').playState == 0) {
										soundManager.stopAll()
										soundManager.play('marker21')
																												
										}
								
								else	{
										soundManager.stop('marker21')
										}														 							
									}
									
									
									
			//create feature22 plus click event
			
					var lat22=51.473					
					var lon22=-0.36993
					var lonLat22 = new OpenLayers.LonLat(lon22, lat22).transform(new OpenLayers.Projection("EPSG:4326"), map.getProjectionObject());
											
					feature22 = new OpenLayers.Feature(layerMarkers,lonLat22,{icon: new OpenLayers.Icon('images/speaker.png')})
				
					marker22 = feature22.createMarker();
				
					layerMarkers.addMarker(marker22);
				
					marker22.events.register("click", marker22, click22)
					
									
					function click22(evt) {
																								
								soundManager.createSound('marker22','http://audioboo.fm/boos/47568-landing-aircraft-ba-747.mp3')
								
								if (soundManager.getSoundById('marker22').playState == 0) {
										soundManager.stopAll()
										soundManager.play('marker22')
																												
										}
								
								else	{
										soundManager.stop('marker22')
										}														 							
									}
									
									
									
			//create feature23 plus click event
			
					var lat23=51.473					
					var lon23=-0.371503
					var lonLat23 = new OpenLayers.LonLat(lon23, lat23).transform(new OpenLayers.Projection("EPSG:4326"), map.getProjectionObject());
											
					feature23 = new OpenLayers.Feature(layerMarkers,lonLat23,{icon: new OpenLayers.Icon('images/speaker.png')})
				
					marker23 = feature23.createMarker();
				
					layerMarkers.addMarker(marker23);
				
					marker23.events.register("click", marker23, click23)
					
									
					function click23(evt) {
																								
								soundManager.createSound('marker23','http://audioboo.fm/boos/47573-landing-aircraft-ba-medium.mp3')
								
								if (soundManager.getSoundById('marker23').playState == 0) {
										soundManager.stopAll()
										soundManager.play('marker23')
																												
										}
								
								else	{
										soundManager.stop('marker23')
										}														 							
									}
									
									
			//create feature24 plus click event
			
					var lat24=51.4729					
					var lon24=-0.371366
					var lonLat24 = new OpenLayers.LonLat(lon24, lat24).transform(new OpenLayers.Projection("EPSG:4326"), map.getProjectionObject());
											
					feature24 = new OpenLayers.Feature(layerMarkers,lonLat24,{icon: new OpenLayers.Icon('images/speaker.png')})
				
					marker24 = feature24.createMarker();
				
					layerMarkers.addMarker(marker24);
				
					marker24.events.register("click", marker24, click24)
					
									
					function click24(evt) {
																								
								soundManager.createSound('marker24','http://audioboo.fm/boos/47574-landing-aircraft-ba-med.mp3')
								
								if (soundManager.getSoundById('marker24').playState == 0) {
										soundManager.stopAll()
										soundManager.play('marker24')
																												
										}
								
								else	{
										soundManager.stop('marker24')
										}														 							
									}
									
									
									
			//create feature25 plus click event
			
					var lat25=51.4734					
					var lon25=-0.372198
					var lonLat25 = new OpenLayers.LonLat(lon25, lat25).transform(new OpenLayers.Projection("EPSG:4326"), map.getProjectionObject());
											
					feature25 = new OpenLayers.Feature(layerMarkers,lonLat25,{icon: new OpenLayers.Icon('images/speaker.png')})
				
					marker25 = feature25.createMarker();
				
					layerMarkers.addMarker(marker25);
				
					marker25.events.register("click", marker25, click25)
					
									
					function click25(evt) {
																								
								soundManager.createSound('marker25','http://audioboo.fm/boos/47576-landing-aircraft-qf-747.mp3')
								
								if (soundManager.getSoundById('marker25').playState == 0) {
										soundManager.stopAll()
										soundManager.play('marker25')
																												
										}
								
								else	{
										soundManager.stop('marker25')
										}														 							
									}
									
									
									
			//create feature26 plus click event
			
					var lat26=51.4734					
					var lon26=-0.372198
					var lonLat26 = new OpenLayers.LonLat(lon26, lat26).transform(new OpenLayers.Projection("EPSG:4326"), map.getProjectionObject());
											
					feature26 = new OpenLayers.Feature(layerMarkers,lonLat26,{icon: new OpenLayers.Icon('images/speaker.png')})
				
					marker26 = feature26.createMarker();
				
					layerMarkers.addMarker(marker26);
				
					marker26.events.register("click", marker26, click26)
					
									
					function click26(evt) {
																								
								soundManager.createSound('marker26','http://audioboo.fm/boos/47578-landing-aircraft-qr.mp3')
								
								if (soundManager.getSoundById('marker26').playState == 0) {
										soundManager.stopAll()
										soundManager.play('marker26')
																												
										}
								
								else	{
										soundManager.stop('marker26')
										}														 							
									}



			//create feature27 plus click event
			
					var lat27=51.474					
					var lon27=-0.37792
					var lonLat27 = new OpenLayers.LonLat(lon27, lat27).transform(new OpenLayers.Projection("EPSG:4326"), map.getProjectionObject());
											
					feature27 = new OpenLayers.Feature(layerMarkers,lonLat27,{icon: new OpenLayers.Icon('images/speaker.png')})
				
					marker27 = feature27.createMarker();
				
					layerMarkers.addMarker(marker27);
				
					marker27.events.register("click", marker27, click27)
					
									
					function click27(evt) {
																								
								soundManager.createSound('marker27','http://audioboo.fm/boos/47584-landing-aircraft-ua.mp3')
								
								if (soundManager.getSoundById('marker27').playState == 0) {
										soundManager.stopAll()
										soundManager.play('marker27')
																												
										}
								
								else	{
										soundManager.stop('marker27')
										}														 							
									}
									
									
									
			//create feature28 plus click event
			
					var lat28=51.4749					
					var lon28=-0.37936
					var lonLat28 = new OpenLayers.LonLat(lon28, lat28).transform(new OpenLayers.Projection("EPSG:4326"), map.getProjectionObject());
											
					feature28 = new OpenLayers.Feature(layerMarkers,lonLat28,{icon: new OpenLayers.Icon('images/speaker.png')})
				
					marker28 = feature28.createMarker();
				
					layerMarkers.addMarker(marker28);
				
					marker28.events.register("click", marker28, click28)
					
									
					function click28(evt) {
																								
								soundManager.createSound('marker28','http://audioboo.fm/boos/47589-landing-aircraft-ei.mp3')
								
								if (soundManager.getSoundById('marker28').playState == 0) {
										soundManager.stopAll()
										soundManager.play('marker28')
																												
										}
								
								else	{
										soundManager.stop('marker28')
										}														 							
									}
									
									
									
			//create feature29 plus click event
			
					var lat29=51.4749					
					var lon29=-0.383398
					var lonLat29 = new OpenLayers.LonLat(lon29, lat29).transform(new OpenLayers.Projection("EPSG:4326"), map.getProjectionObject());
											
					feature29 = new OpenLayers.Feature(layerMarkers,lonLat29,{icon: new OpenLayers.Icon('images/speaker.png')})
				
					marker29 = feature29.createMarker();
				
					layerMarkers.addMarker(marker29);
				
					marker29.events.register("click", marker29, click29)
					
									
					function click29(evt) {
																								
								soundManager.createSound('marker29','http://audioboo.fm/boos/47594-landing-aircraft-ac.mp3')
								
								if (soundManager.getSoundById('marker29').playState == 0) {
										soundManager.stopAll()
										soundManager.play('marker29')
																												
										}
								
								else	{
										soundManager.stop('marker29')
										}														 							
									}




			//create feature30 plus click event
			
					var lat30=51.477					
					var lon30=-0.40819
					var lonLat30 = new OpenLayers.LonLat(lon30, lat30).transform(new OpenLayers.Projection("EPSG:4326"), map.getProjectionObject());
											
					feature30 = new OpenLayers.Feature(layerMarkers,lonLat30,{icon: new OpenLayers.Icon('images/speaker.png')})
				
					marker30 = feature30.createMarker();
				
					layerMarkers.addMarker(marker30);
				
					marker30.events.register("click", marker30, click30)
					
									
					function click30(evt) {
																								
								soundManager.createSound('marker30','http://audioboo.fm/boos/47607-aircraft-landing.mp3')
								
								if (soundManager.getSoundById('marker30').playState == 0) {
										soundManager.stopAll()
										soundManager.play('marker30')
																												
										}
								
								else	{
										soundManager.stop('marker30')
										}														 							
									}


			//create feature31 plus click event
			
					var lat31=51.4775					
					var lon31=-0.407182
					var lonLat31 = new OpenLayers.LonLat(lon31, lat31).transform(new OpenLayers.Projection("EPSG:4326"), map.getProjectionObject());
											
					feature31 = new OpenLayers.Feature(layerMarkers,lonLat31,{icon: new OpenLayers.Icon('images/speaker.png')})
				
					marker31 = feature31.createMarker();
				
					layerMarkers.addMarker(marker31);
				
					marker31.events.register("click", marker31, click31)
					
									
					function click31(evt) {
																								
								soundManager.createSound('marker31','http://audioboo.fm/boos/47610-landing-aircraft-jl.mp3')
								
								if (soundManager.getSoundById('marker31').playState == 0) {
										soundManager.stopAll()
										soundManager.play('marker31')
																												
										}
								
								else	{
										soundManager.stop('marker31')
										}														 							
									}	
									
			//create feature32 plus click event
			
					var lat32=51.4723					
					var lon32=-0.12328
					var lonLat32 = new OpenLayers.LonLat(lon32, lat32).transform(new OpenLayers.Projection("EPSG:4326"), map.getProjectionObject());
											
					feature32 = new OpenLayers.Feature(layerMarkers,lonLat32,{icon: new OpenLayers.Icon('images/speaker.png')})
				
					marker32 = feature32.createMarker();
				
					layerMarkers.addMarker(marker32);
				
					marker32.events.register("click", marker32, click32)
					
									
					function click32(evt) {
																								
								soundManager.createSound('marker32','http://audioboo.fm/boos/48464-landing-aircraft-stockwell.mp3')
								
								if (soundManager.getSoundById('marker32').playState == 0) {
										soundManager.stopAll()
										soundManager.play('marker32')
																												
										}
								
								else	{
										soundManager.stop('marker32')
										}														 							
									}		
									

			//create feature33 plus click event
			//North runway landing - used in surface interpolation
			
					var lat33=51.4734					
					var lon33=-0.123334
					var lonLat33 = new OpenLayers.LonLat(lon33, lat33).transform(new OpenLayers.Projection("EPSG:4326"), map.getProjectionObject());
											
					feature33 = new OpenLayers.Feature(layerMarkers,lonLat33,{icon: new OpenLayers.Icon('images/speaker.png')})
				
					marker33 = feature33.createMarker();
				
					layerMarkers.addMarker(marker33);
				
					marker33.events.register("click", marker33, click33)
					
									
					function click33(evt) {
																								
								soundManager.createSound('marker33','http://audioboo.fm/boos/48468-landing-aircraft.mp3')
								
								if (soundManager.getSoundById('marker33').playState == 0) {
										soundManager.stopAll()
										soundManager.play('marker33')
																												
										}
								
								else	{
										soundManager.stop('marker33')
										}														 							
									}		
									

			//create feature34 plus click event
			
					var lat34=51.464					
					var lon34=-0.424596
					var lonLat34 = new OpenLayers.LonLat(lon34, lat34).transform(new OpenLayers.Projection("EPSG:4326"), map.getProjectionObject());
											
					feature34 = new OpenLayers.Feature(layerMarkers,lonLat34,{icon: new OpenLayers.Icon('images/speaker.png')})
				
					marker34 = feature34.createMarker();
				
					layerMarkers.addMarker(marker34);
				
					marker34.events.register("click", marker34, click34)
					
									
					function click34(evt) {
																								
								soundManager.createSound('marker34','http://audioboo.fm/boos/50442-landing-3g-s.mp3')
								
								if (soundManager.getSoundById('marker34').playState == 0) {
										soundManager.stopAll()
										soundManager.play('marker34')
																												
										}
								
								else	{
										soundManager.stop('marker34')
										}														 							
									}		
									

			//create feature35 plus click event
			
					var lat35=51.4638					
					var lon35=-0.42451
					var lonLat35 = new OpenLayers.LonLat(lon35, lat35).transform(new OpenLayers.Projection("EPSG:4326"), map.getProjectionObject());
											
					feature35 = new OpenLayers.Feature(layerMarkers,lonLat35,{icon: new OpenLayers.Icon('images/speaker.png')})
				
					marker35 = feature35.createMarker();
				
					layerMarkers.addMarker(marker35);
				
					marker35.events.register("click", marker35, click35)
					
									
					function click35(evt) {
																								
								soundManager.createSound('marker35','http://audioboo.fm/boos/50444-landing-3g-s-777-nz.mp3')
								
								if (soundManager.getSoundById('marker35').playState == 0) {
										soundManager.stopAll()
										soundManager.play('marker35')
																												
										}
								
								else	{
										soundManager.stop('marker35')
										}														 							
									}
									
			//create feature36 plus click event
			
					var lat36=51.4648					
					var lon36=-0.41362
					var lonLat36 = new OpenLayers.LonLat(lon36, lat36).transform(new OpenLayers.Projection("EPSG:4326"), map.getProjectionObject());
											
					feature36 = new OpenLayers.Feature(layerMarkers,lonLat36,{icon: new OpenLayers.Icon('images/speaker.png')})
				
					marker36 = feature36.createMarker();
				
					layerMarkers.addMarker(marker36);
				
					marker36.events.register("click", marker36, click36)
					
									
					function click36(evt) {
																								
								soundManager.createSound('marker36','http://audioboo.fm/boos/50451-landing-3g-s-ek.mp3')
								
								if (soundManager.getSoundById('marker36').playState == 0) {
										soundManager.stopAll()
										soundManager.play('marker36')
																												
										}
								
								else	{
										soundManager.stop('marker36')
										}														 							
									}

			//create feature36 plus click event
			
					var lat36=51.4648					
					var lon36=-0.41362
					var lonLat36 = new OpenLayers.LonLat(lon36, lat36).transform(new OpenLayers.Projection("EPSG:4326"), map.getProjectionObject());
											
					feature36 = new OpenLayers.Feature(layerMarkers,lonLat36,{icon: new OpenLayers.Icon('images/speaker.png')})
				
					marker36 = feature36.createMarker();
				
					layerMarkers.addMarker(marker36);
				
					marker36.events.register("click", marker36, click36)
					
									
					function click36(evt) {
																								
								soundManager.createSound('marker36','http://audioboo.fm/boos/50451-landing-3g-s-ek.mp3')
								
								if (soundManager.getSoundById('marker36').playState == 0) {
										soundManager.stopAll()
										soundManager.play('marker36')
																												
										}
								
								else	{
										soundManager.stop('marker36')
										}														 							
									}	
										

			//create feature37 plus click event
			
					var lat37=51.4632					
					var lon37=-0.403843
					var lonLat37 = new OpenLayers.LonLat(lon37, lat37).transform(new OpenLayers.Projection("EPSG:4326"), map.getProjectionObject());
											
					feature37 = new OpenLayers.Feature(layerMarkers,lonLat37,{icon: new OpenLayers.Icon('images/speaker.png')})
				
					marker37 = feature37.createMarker();
				
					layerMarkers.addMarker(marker37);
				
					marker37.events.register("click", marker37, click37)
					
									
					function click37(evt) {
																								
								soundManager.createSound('marker37','http://audioboo.fm/boos/50457-landing-3g-s-747-ba.mp3')
								
								if (soundManager.getSoundById('marker37').playState == 0) {
										soundManager.stopAll()
										soundManager.play('marker37')
																												
										}
								
								else	{
										soundManager.stop('marker37')
										}														 							
									}
									
			//create feature38 plus click event
			
					var lat38=51.482					
					var lon38=-0.301666
					var lonLat38 = new OpenLayers.LonLat(lon38, lat38).transform(new OpenLayers.Projection("EPSG:4326"), map.getProjectionObject());
											
					feature38 = new OpenLayers.Feature(layerMarkers,lonLat38,{icon: new OpenLayers.Icon('images/speaker.png')})
				
					marker38 = feature38.createMarker();
				
					layerMarkers.addMarker(marker38);
				
					marker38.events.register("click", marker38, click38)
					
									
					function click38(evt) {
																								
								soundManager.createSound('marker38','http://audioboo.fm/boos/51291-landing-3g-s.mp3')
								
								if (soundManager.getSoundById('marker38').playState == 0) {
										soundManager.stopAll()
										soundManager.play('marker38')
																												
										}
								
								else	{
										soundManager.stop('marker38')
										}														 							
									}
									
									
			//create feature39 plus click event
			//Excluded from analysis due to interference
			
					var lat39=51.4831					
					var lon39=-0.301765
					var lonLat39 = new OpenLayers.LonLat(lon39, lat39).transform(new OpenLayers.Projection("EPSG:4326"), map.getProjectionObject());
											
					feature39 = new OpenLayers.Feature(layerMarkers,lonLat39,{icon: new OpenLayers.Icon('images/speaker.png')})
				
					marker39 = feature39.createMarker();
				
					layerMarkers.addMarker(marker39);
				
					marker39.events.register("click", marker39, click39)
					
									
					function click39(evt) {
																								
								soundManager.createSound('marker39','http://audioboo.fm/boos/51293-landing-3g-s.mp3')
								
								if (soundManager.getSoundById('marker39').playState == 0) {
										soundManager.stopAll()
										soundManager.play('marker39')
																												
										}
								
								else	{
										soundManager.stop('marker39')
										}														 							
									}
									
									
			//create feature40 plus click event
			
					var lat40=51.4831					
					var lon40=-0.301765
					var lonLat40 = new OpenLayers.LonLat(lon40, lat40).transform(new OpenLayers.Projection("EPSG:4326"), map.getProjectionObject());
											
					feature40 = new OpenLayers.Feature(layerMarkers,lonLat40,{icon: new OpenLayers.Icon('images/speaker.png')})
				
					marker40 = feature40.createMarker();
				
					layerMarkers.addMarker(marker40);
				
					marker40.events.register("click", marker40, click40)
					
									
					function click40(evt) {
																								
								soundManager.createSound('marker40','http://audioboo.fm/boos/51295-landing-3g-s-ul.mp3')
								
								if (soundManager.getSoundById('marker40').playState == 0) {
										soundManager.stopAll()
										soundManager.play('marker40')
																												
										}
								
								else	{
										soundManager.stop('marker40')
										}														 							
									}
									
									
			//create feature41 plus click event
			
					var lat41=51.4807					
					var lon41=-0.310653
					var lonLat41 = new OpenLayers.LonLat(lon41, lat41).transform(new OpenLayers.Projection("EPSG:4326"), map.getProjectionObject());
											
					feature41 = new OpenLayers.Feature(layerMarkers,lonLat41,{icon: new OpenLayers.Icon('images/speaker.png')})
				
					marker41 = feature41.createMarker();
				
					layerMarkers.addMarker(marker41);
				
					marker41.events.register("click", marker41, click41)
					
									
					function click41(evt) {
																								
								soundManager.createSound('marker41','http://audioboo.fm/boos/51297-landing-3g-s-ba.mp3')
								
								if (soundManager.getSoundById('marker41').playState == 0) {
										soundManager.stopAll()
										soundManager.play('marker41')
																												
										}
								
								else	{
										soundManager.stop('marker41')
										}														 							
									}


			//create feature42 plus click event
			
					var lat42=51.477					
					var lon42=-0.314503
					var lonLat42 = new OpenLayers.LonLat(lon42, lat42).transform(new OpenLayers.Projection("EPSG:4326"), map.getProjectionObject());
											
					feature42 = new OpenLayers.Feature(layerMarkers,lonLat42,{icon: new OpenLayers.Icon('images/speaker.png')})
				
					marker42 = feature42.createMarker();
				
					layerMarkers.addMarker(marker42);
				
					marker42.events.register("click", marker42, click42)
					
									
					function click42(evt) {
																								
								soundManager.createSound('marker42','http://audioboo.fm/boos/51303-landing-3g-s-ba.mp3')
								
								if (soundManager.getSoundById('marker42').playState == 0) {
										soundManager.stopAll()
										soundManager.play('marker42')
																												
										}
								
								else	{
										soundManager.stop('marker42')
										}														 							
									}
									
									
			//create feature43 plus click event
			
					var lat43=51.4745					
					var lon43=-0.316807
					var lonLat43 = new OpenLayers.LonLat(lon43, lat43).transform(new OpenLayers.Projection("EPSG:4326"), map.getProjectionObject());
											
					feature43 = new OpenLayers.Feature(layerMarkers,lonLat43,{icon: new OpenLayers.Icon('images/speaker.png')})
				
					marker43 = feature43.createMarker();
				
					layerMarkers.addMarker(marker43);
				
					marker43.events.register("click", marker43, click43)
					
									
					function click43(evt) {
																								
								soundManager.createSound('marker43','http://audioboo.fm/boos/51308-landing-3g-s.mp3')
								
								if (soundManager.getSoundById('marker43').playState == 0) {
										soundManager.stopAll()
										soundManager.play('marker43')
																												
										}
								
								else	{
										soundManager.stop('marker43')
										}														 							
									}
									
									
			//create feature44 plus click event
			
					var lat44=51.4769					
					var lon44=-0.322991
					var lonLat44 = new OpenLayers.LonLat(lon44, lat44).transform(new OpenLayers.Projection("EPSG:4326"), map.getProjectionObject());
											
					feature44 = new OpenLayers.Feature(layerMarkers,lonLat44,{icon: new OpenLayers.Icon('images/speaker.png')})
				
					marker44 = feature44.createMarker();
				
					layerMarkers.addMarker(marker44);
				
					marker44.events.register("click", marker44, click44)
					
									
					function click44(evt) {
																								
								soundManager.createSound('marker44','http://audioboo.fm/boos/51311-landing-3g-s.mp3')
								
								if (soundManager.getSoundById('marker44').playState == 0) {
										soundManager.stopAll()
										soundManager.play('marker44')
																												
										}
								
								else	{
										soundManager.stop('marker44')
										}														 							
									}
									
									
			//create feature45 plus click event
			//North runway landing - used in surface interpolation
			
					var lat45=51.4944				
					var lon45=-0.32364
					var lonLat45 = new OpenLayers.LonLat(lon45, lat45).transform(new OpenLayers.Projection("EPSG:4326"), map.getProjectionObject());
											
					feature45 = new OpenLayers.Feature(layerMarkers,lonLat45,{icon: new OpenLayers.Icon('images/speaker.png')})
				
					marker45 = feature45.createMarker();
				
					layerMarkers.addMarker(marker45);
				
					marker45.events.register("click", marker45, click45)
					
									
					function click45(evt) {
																								
								soundManager.createSound('marker45','http://audioboo.fm/boos/52073-landing-3g-n-747-ba.mp3')
								
								if (soundManager.getSoundById('marker45').playState == 0) {
										soundManager.stopAll()
										soundManager.play('marker45')
																												
										}
								
								else	{
										soundManager.stop('marker45')
										}														 							
									}
									
									
			//create feature46 plus click event
			
					var lat46=51.5011				
					var lon46=-0.323143
					var lonLat46 = new OpenLayers.LonLat(lon46, lat46).transform(new OpenLayers.Projection("EPSG:4326"), map.getProjectionObject());
											
					feature46 = new OpenLayers.Feature(layerMarkers,lonLat46,{icon: new OpenLayers.Icon('images/speaker.png')})
				
					marker46 = feature46.createMarker();
				
					layerMarkers.addMarker(marker46);
				
					marker46.events.register("click", marker46, click46)
					
									
					function click46(evt) {
																								
								soundManager.createSound('marker46','http://audioboo.fm/boos/52080-3g.mp3')
								
								if (soundManager.getSoundById('marker46').playState == 0) {
										soundManager.stopAll()
										soundManager.play('marker46')
																												
										}
								
								else	{
										soundManager.stop('marker46')
										}														 							
									}
			
			//Features 47 thru 55 North runway landing - used in surface interpolation
						
			//create feature47 plus click event
			
					var lat47=51.5014				
					var lon47=-0.323612
					var lonLat47 = new OpenLayers.LonLat(lon47, lat47).transform(new OpenLayers.Projection("EPSG:4326"), map.getProjectionObject());
											
					feature47 = new OpenLayers.Feature(layerMarkers,lonLat47,{icon: new OpenLayers.Icon('images/speaker.png')})
				
					marker47 = feature47.createMarker();
				
					layerMarkers.addMarker(marker47);
				
					marker47.events.register("click", marker47, click47)
					
									
					function click47(evt) {
																								
								soundManager.createSound('marker47','http://audioboo.fm/boos/52081-landing-3g-n.mp3')
								
								if (soundManager.getSoundById('marker47').playState == 0) {
										soundManager.stopAll()
										soundManager.play('marker47')
																												
										}
								
								else	{
										soundManager.stop('marker47')
										}														 							
									}
									
									
			//create feature48 plus click event
			//Excluded from analysis due to interference
			
					var lat48=51.5023				
					var lon48=-0.32682
					var lonLat48 = new OpenLayers.LonLat(lon48, lat48).transform(new OpenLayers.Projection("EPSG:4326"), map.getProjectionObject());
											
					feature48 = new OpenLayers.Feature(layerMarkers,lonLat48,{icon: new OpenLayers.Icon('images/speaker.png')})
				
					marker48 = feature48.createMarker();
				
					layerMarkers.addMarker(marker48);
				
					marker48.events.register("click", marker48, click48)
					
									
					function click48(evt) {
																								
								soundManager.createSound('marker48','http://audioboo.fm/boos/52084-landing-3g-n-747-ba.mp3')
								
								if (soundManager.getSoundById('marker48').playState == 0) {
										soundManager.stopAll()
										soundManager.play('marker48')
																												
										}
								
								else	{
										soundManager.stop('marker48')
										}														 							
									}
									

			//create feature49 plus click event
			//Not included as AudioMarker due to interference, included in analysis
			//
			//		var lat49=51.5029				
			//		var lon49=-0.312995
			//		var lonLat49 = new OpenLayers.LonLat(lon49, lat49).transform(new OpenLayers.Projection("EPSG:4326"), map.getProjectionObject());
			//								
			//		feature49 = new OpenLayers.Feature(layerMarkers,lonLat49,{icon: new OpenLayers.Icon('images/speaker.png')})
			//	
			//		marker49 = feature49.createMarker();
			//	
			//		layerMarkers.addMarker(marker49);
			//	
			//		marker49.events.register("click", marker49, click49)
			//		
			//						
			//		function click49(evt) {
			//																					
			//					soundManager.createSound('marker49','http://audioboo.fm/boos/52092-landing-3g-n-vs')
			//					
			//					if (soundManager.getSoundById('marker49').playState == 0) {
			//							soundManager.stopAll()
			//							soundManager.play('marker49')
			//																									
			//							}
			//					
			//					else	{
			//							soundManager.stop('marker49')
			//							}														 							
			//						}
									
			//create feature50 plus click event
			
					var lat50=51.499				
					var lon50=-0.309287
					var lonLat50 = new OpenLayers.LonLat(lon50, lat50).transform(new OpenLayers.Projection("EPSG:4326"), map.getProjectionObject());
											
					feature50 = new OpenLayers.Feature(layerMarkers,lonLat50,{icon: new OpenLayers.Icon('images/speaker.png')})
				
					marker50 = feature50.createMarker();
				
					layerMarkers.addMarker(marker50);
				
					marker50.events.register("click", marker50, click50)
					
									
					function click50(evt) {
																								
								soundManager.createSound('marker50','http://audioboo.fm/boos/52101-landing-3g-n.mp3')
								
								if (soundManager.getSoundById('marker50').playState == 0) {
										soundManager.stopAll()
										soundManager.play('marker50')
																												
										}
								
								else	{
										soundManager.stop('marker50')
										}														 							
									}
								
			//create feature51 plus click event
			
					var lat51=51.4961				
					var lon51=-0.310441
					var lonLat51 = new OpenLayers.LonLat(lon51, lat51).transform(new OpenLayers.Projection("EPSG:4326"), map.getProjectionObject());
											
					feature51 = new OpenLayers.Feature(layerMarkers,lonLat51,{icon: new OpenLayers.Icon('images/speaker.png')})
				
					marker51 = feature51.createMarker();
				
					layerMarkers.addMarker(marker51);
				
					marker51.events.register("click", marker51, click51)
					
									
					function click51(evt) {
																								
								soundManager.createSound('marker51','http://audioboo.fm/boos/52108-landing-3g-n.mp3')
								
								if (soundManager.getSoundById('marker51').playState == 0) {
										soundManager.stopAll()
										soundManager.play('marker51')
																												
										}
								
								else	{
										soundManager.stop('marker51')
										}														 							
									}
									
									
			//create feature52 plus click event
			
					var lat52=51.4938				
					var lon52=-0.31078
					var lonLat52 = new OpenLayers.LonLat(lon52, lat52).transform(new OpenLayers.Projection("EPSG:4326"), map.getProjectionObject());
											
					feature52 = new OpenLayers.Feature(layerMarkers,lonLat52,{icon: new OpenLayers.Icon('images/speaker.png')})
				
					marker52 = feature52.createMarker();
				
					layerMarkers.addMarker(marker52);
				
					marker52.events.register("click", marker52, click52)
					
									
					function click52(evt) {
																								
								soundManager.createSound('marker52','http://audioboo.fm/boos/52111-landing-3g-n.mp3')
								
								if (soundManager.getSoundById('marker52').playState == 0) {
										soundManager.stopAll()
										soundManager.play('marker52')
																												
										}
								
								else	{
										soundManager.stop('marker52')
										}														 							
									}
									
			//create feature53 plus click event
			//Not included as AudioMarker due to interference, included in analysis
			//
			//		var lat53=51.4911				
			//		var lon53=-0.31131
			//		var lonLat53 = new OpenLayers.LonLat(lon53, lat53).transform(new OpenLayers.Projection("EPSG:4326"), map.getProjectionObject());
			//								
			//		feature53 = new OpenLayers.Feature(layerMarkers,lonLat53,{icon: new OpenLayers.Icon('images/speaker.png')})
			//	
			//		marker53 = feature53.createMarker();
			//	
			//		layerMarkers.addMarker(marker53);
			//	
			//		marker53.events.register("click", marker53, click53)
			//		
			//						
			//		function click53(evt) {
			//																					
			//					soundManager.createSound('marker53','http://audioboo.fm/boos/52117-landing-3g-n.mp3')
			//					
			//					if (soundManager.getSoundById('marker53').playState == 0) {
			//							soundManager.stopAll()
			//							soundManager.play('marker53')
			//																									
			//							}
			//					
			//					else	{
			//							soundManager.stop('marker53')
			//							}														 							
			//						}
									
			//create feature54 plus click event
			
					var lat54=51.4911				
					var lon54=-0.311317
					var lonLat54 = new OpenLayers.LonLat(lon54, lat54).transform(new OpenLayers.Projection("EPSG:4326"), map.getProjectionObject());
											
					feature54 = new OpenLayers.Feature(layerMarkers,lonLat54,{icon: new OpenLayers.Icon('images/speaker.png')})
				
					marker54 = feature54.createMarker();
				
					layerMarkers.addMarker(marker54);
				
					marker54.events.register("click", marker54, click54)
					
									
					function click54(evt) {
																								
								soundManager.createSound('marker54','http://audioboo.fm/boos/52118-landing-3g-n-747-ba.mp3')
								
								if (soundManager.getSoundById('marker54').playState == 0) {
										soundManager.stopAll()
										soundManager.play('marker54')
																												
										}
								
								else	{
										soundManager.stop('marker54')
										}														 							
									}

			//create feature55 plus click event
			
					var lat55=51.4932				
					var lon55=-0.307751
					var lonLat55 = new OpenLayers.LonLat(lon55, lat55).transform(new OpenLayers.Projection("EPSG:4326"), map.getProjectionObject());
											
					feature55 = new OpenLayers.Feature(layerMarkers,lonLat55,{icon: new OpenLayers.Icon('images/speaker.png')})
				
					marker55 = feature55.createMarker();
				
					layerMarkers.addMarker(marker55);
				
					marker55.events.register("click", marker55, click55)
					
									
					function click55(evt) {
																								
								soundManager.createSound('marker55','http://audioboo.fm/boos/52124-landing-3g-n-747-ba.mp3')
								
								if (soundManager.getSoundById('marker55').playState == 0) {
										soundManager.stopAll()
										soundManager.play('marker55')
																												
										}
								
								else	{
										soundManager.stop('marker55')
										}														 							
									}
									
			//create feature56 plus click event
			
					var lat56=51.5552				
					var lon56=-0.132654
					var lonLat56 = new OpenLayers.LonLat(lon56, lat56).transform(new OpenLayers.Projection("EPSG:4326"), map.getProjectionObject());
											
					feature56 = new OpenLayers.Feature(layerMarkers,lonLat56,{icon: new OpenLayers.Icon('images/speaker.png')})
				
					marker56 = feature56.createMarker();
				
					layerMarkers.addMarker(marker56);
				
					marker56.events.register("click", marker56, click56)
					
									
					function click56(evt) {
																								
								soundManager.createSound('marker56','http://audioboo.fm/boos/53486-plane-tp.mp3')
								
								if (soundManager.getSoundById('marker56').playState == 0) {
										soundManager.stopAll()
										soundManager.play('marker56')
																												
										}
								
								else	{
										soundManager.stop('marker56')
										}														 							
									}


			//create feature57 plus click event
			
					var lat57=51.5641				
					var lon57=-0.138129
					var lonLat57 = new OpenLayers.LonLat(lon57, lat57).transform(new OpenLayers.Projection("EPSG:4326"), map.getProjectionObject());
											
					feature57 = new OpenLayers.Feature(layerMarkers,lonLat57,{icon: new OpenLayers.Icon('images/speaker.png')})
				
					marker57 = feature57.createMarker();
				
					layerMarkers.addMarker(marker57);
				
					marker57.events.register("click", marker57, click57)
					
									
					function click57(evt) {
																								
								soundManager.createSound('marker57','http://audioboo.fm/boos/53637-airplane-archway.mp3')
								
								if (soundManager.getSoundById('marker57').playState == 0) {
										soundManager.stopAll()
										soundManager.play('marker57')
																												
										}
								
								else	{
										soundManager.stop('marker57')
										}														 							
									}
									
									
			//create feature58 plus click event
			
					var lat58=51.4659				
					var lon58=-0.299721
					var lonLat58 = new OpenLayers.LonLat(lon58, lat58).transform(new OpenLayers.Projection("EPSG:4326"), map.getProjectionObject());
											
					feature58 = new OpenLayers.Feature(layerMarkers,lonLat58,{icon: new OpenLayers.Icon('images/speaker.png')})
				
					marker58 = feature58.createMarker();
				
					layerMarkers.addMarker(marker58);
				
					marker58.events.register("click", marker58, click58)
					
									
					function click58(evt) {
																								
								soundManager.createSound('marker58','http://audioboo.fm/boos/54590-landing-747-3g.mp3')
								
								if (soundManager.getSoundById('marker58').playState == 0) {
										soundManager.stopAll()
										soundManager.play('marker58')
																												
										}
								
								else	{
										soundManager.stop('marker58')
										}														 							
									}
									
									
			//create feature59 plus click event
			
					var lat59=51.5571				
					var lon59=-0.133672
					var lonLat59 = new OpenLayers.LonLat(lon59, lat59).transform(new OpenLayers.Projection("EPSG:4326"), map.getProjectionObject());
											
					feature59 = new OpenLayers.Feature(layerMarkers,lonLat59,{icon: new OpenLayers.Icon('images/speaker.png')})
				
					marker59 = feature59.createMarker();
				
					layerMarkers.addMarker(marker59);
				
					marker59.events.register("click", marker59, click59)
					
									
					function click59(evt) {
																								
								soundManager.createSound('marker59','http://audioboo.fm/boos/54779-plane-noise-tufnell-park.mp3')
								
								if (soundManager.getSoundById('marker59').playState == 0) {
										soundManager.stopAll()
										soundManager.play('marker59')
																												
										}
								
								else	{
										soundManager.stop('marker59')
										}														 							
									}
									
									
									
			//create feature60 plus click event
			//North runway landing - used in surface interpolation
			
					var lat60=51.4844				
					var lon60=-0.34556
					var lonLat60 = new OpenLayers.LonLat(lon60, lat60).transform(new OpenLayers.Projection("EPSG:4326"), map.getProjectionObject());
											
					feature60 = new OpenLayers.Feature(layerMarkers,lonLat60,{icon: new OpenLayers.Icon('images/speaker.png')})
				
					marker60 = feature60.createMarker();
				
					layerMarkers.addMarker(marker60);
				
					marker60.events.register("click", marker60, click60)
					
									
					function click60(evt) {
																								
								soundManager.createSound('marker60','http://audioboo.fm/boos/55269-landing-3g-747-ba.mp3')
								
								if (soundManager.getSoundById('marker60').playState == 0) {
										soundManager.stopAll()
										soundManager.play('marker60')
																												
										}
								
								else	{
										soundManager.stop('marker60')
										}														 							
									}
									
			//create feature61 plus click event
			
					var lat61=51.467				
					var lon61=-0.366
					var lonLat61 = new OpenLayers.LonLat(lon61, lat61).transform(new OpenLayers.Projection("EPSG:4326"), map.getProjectionObject());
											
					feature61 = new OpenLayers.Feature(layerMarkers,lonLat61,{icon: new OpenLayers.Icon('images/speaker.png')})
				
					marker61 = feature61.createMarker();
				
					layerMarkers.addMarker(marker61);
				
					marker61.events.register("click", marker61, click61)
					
									
					function click61(evt) {
																								
								soundManager.createSound('marker61','http://audioboo.fm/boos/55274-landing-3g-s-747-ba.mp3')
								
								if (soundManager.getSoundById('marker61').playState == 0) {
										soundManager.stopAll()
										soundManager.play('marker61')
																												
										}
								
								else	{
										soundManager.stop('marker61')
										}														 							
									}
									
									
			//create feature62 plus click event
			//North runway landing - used in surface interpolation
			
					var lat62=51.4696				
					var lon62=-0.368924
					var lonLat62 = new OpenLayers.LonLat(lon62, lat62).transform(new OpenLayers.Projection("EPSG:4326"), map.getProjectionObject());
											
					feature62 = new OpenLayers.Feature(layerMarkers,lonLat62,{icon: new OpenLayers.Icon('images/speaker.png')})
				
					marker62 = feature62.createMarker();
				
					layerMarkers.addMarker(marker62);
				
					marker62.events.register("click", marker62, click62)
					
									
					function click62(evt) {
																								
								soundManager.createSound('marker62','http://audioboo.fm/boos/55276-landing-3g-747-qf-n.mp3')
								
								if (soundManager.getSoundById('marker62').playState == 0) {
										soundManager.stopAll()
										soundManager.play('marker62')
																												
										}
								
								else	{
										soundManager.stop('marker62')
										}														 							
									}
									
			//create feature63 plus click event
			
					var lat63=51.4713				
					var lon63=-0.374085
					var lonLat63 = new OpenLayers.LonLat(lon63, lat63).transform(new OpenLayers.Projection("EPSG:4326"), map.getProjectionObject());
											
					feature63 = new OpenLayers.Feature(layerMarkers,lonLat63,{icon: new OpenLayers.Icon('images/speaker.png')})
				
					marker63 = feature63.createMarker();
				
					layerMarkers.addMarker(marker63);
				
					marker63.events.register("click", marker63, click63)
					
									
					function click63(evt) {
																								
								soundManager.createSound('marker63','http://audioboo.fm/boos/55277-landing-3g-s-ua.mp3')
								
								if (soundManager.getSoundById('marker63').playState == 0) {
										soundManager.stopAll()
										soundManager.play('marker63')
																												
										}
								
								else	{
										soundManager.stop('marker63')
										}														 							
									}
									
									
			//create feature64 plus click event
			
					var lat64=51.4702				
					var lon64=-0.374499
					var lonLat64 = new OpenLayers.LonLat(lon64, lat64).transform(new OpenLayers.Projection("EPSG:4326"), map.getProjectionObject());
											
					feature64 = new OpenLayers.Feature(layerMarkers,lonLat64,{icon: new OpenLayers.Icon('images/speaker.png')})
				
					marker64 = feature64.createMarker();
				
					layerMarkers.addMarker(marker64);
				
					marker64.events.register("click", marker64, click64)
					
									
					function click64(evt) {
																								
								soundManager.createSound('marker64','http://audioboo.fm/boos/55278-landing-3g-ba-747-s.mp3')
								
								if (soundManager.getSoundById('marker64').playState == 0) {
										soundManager.stopAll()
										soundManager.play('marker64')
																												
										}
								
								else	{
										soundManager.stop('marker64')
										}														 							
									}
									
									
			//create feature65 plus click event
			
					var lat65=51.4706				
					var lon65=-0.364434
					var lonLat65 = new OpenLayers.LonLat(lon65, lat65).transform(new OpenLayers.Projection("EPSG:4326"), map.getProjectionObject());
											
					feature65 = new OpenLayers.Feature(layerMarkers,lonLat65,{icon: new OpenLayers.Icon('images/speaker.png')})
				
					marker65 = feature65.createMarker();
				
					layerMarkers.addMarker(marker65);
				
					marker65.events.register("click", marker65, click65)
					
									
					function click65(evt) {
																								
								soundManager.createSound('marker65','http://audioboo.fm/boos/55279-landing-3g-s-747-ba.mp3')
								
								if (soundManager.getSoundById('marker65').playState == 0) {
										soundManager.stopAll()
										soundManager.play('marker65')
																												
										}
								
								else	{
										soundManager.stop('marker65')
										}														 							
									}
									
								
			//create feature66 plus click event
			
					var lat66=51.4706				
					var lon66=-0.364434
					var lonLat66 = new OpenLayers.LonLat(lon66, lat66).transform(new OpenLayers.Projection("EPSG:4326"), map.getProjectionObject());
											
					feature66 = new OpenLayers.Feature(layerMarkers,lonLat66,{icon: new OpenLayers.Icon('images/speaker.png')})
				
					marker66 = feature66.createMarker();
				
					layerMarkers.addMarker(marker66);
				
					marker66.events.register("click", marker66, click66)
					
									
					function click66(evt) {
																								
								soundManager.createSound('marker66','http://audioboo.fm/boos/55280-landing-3g-747-ba-s.mp3')
								
								if (soundManager.getSoundById('marker66').playState == 0) {
										soundManager.stopAll()
										soundManager.play('marker66')
																												
										}
								
								else	{
										soundManager.stop('marker66')
										}														 							
									}

			//create feature67 plus click event
			
					var lat67=51.4748				
					var lon67=-0.354939
					var lonLat67 = new OpenLayers.LonLat(lon67, lat67).transform(new OpenLayers.Projection("EPSG:4326"), map.getProjectionObject());
											
					feature67 = new OpenLayers.Feature(layerMarkers,lonLat67,{icon: new OpenLayers.Icon('images/speaker.png')})
				
					marker67 = feature67.createMarker();
				
					layerMarkers.addMarker(marker67);
				
					marker67.events.register("click", marker67, click67)
					
									
					function click67(evt) {
																								
								soundManager.createSound('marker67','http://audioboo.fm/boos/55282-landing-3g-747-vs-s.mp3')
								
								if (soundManager.getSoundById('marker67').playState == 0) {
										soundManager.stopAll()
										soundManager.play('marker67')
																												
										}
								
								else	{
										soundManager.stop('marker67')
										}														 							
									}
		    	 		

			//create feature68 plus click event
			//North runway landing - used in surface interpolation
			
					var lat68=51.4702				
					var lon68=-0.355764
					var lonLat68 = new OpenLayers.LonLat(lon68, lat68).transform(new OpenLayers.Projection("EPSG:4326"), map.getProjectionObject());
											
					feature68 = new OpenLayers.Feature(layerMarkers,lonLat68,{icon: new OpenLayers.Icon('images/speaker.png')})
				
					marker68 = feature68.createMarker();
				
					layerMarkers.addMarker(marker68);
				
					marker68.events.register("click", marker68, click68)
					
									
					function click68(evt) {
																								
								soundManager.createSound('marker68','http://audioboo.fm/boos/56150-landing-3g-ba-747-n.mp3')
								
								if (soundManager.getSoundById('marker68').playState == 0) {
										soundManager.stopAll()
										soundManager.play('marker68')
																												
										}
								
								else	{
										soundManager.stop('marker68')
										}														 							
									}
	
			//create feature69 plus click event
			
					var lat69=51.4687				
					var lon69=-0.356798
					var lonLat69 = new OpenLayers.LonLat(lon69, lat69).transform(new OpenLayers.Projection("EPSG:4326"), map.getProjectionObject());
											
					feature69 = new OpenLayers.Feature(layerMarkers,lonLat69,{icon: new OpenLayers.Icon('images/speaker.png')})
				
					marker69 = feature69.createMarker();
				
					layerMarkers.addMarker(marker69);
				
					marker69.events.register("click", marker69, click69)
					
									
					function click69(evt) {
																								
								soundManager.createSound('marker69','http://audioboo.fm/boos/56151-landing-3g-ba-747-s.mp3')
								
								if (soundManager.getSoundById('marker69').playState == 0) {
										soundManager.stopAll()
										soundManager.play('marker69')
																												
										}
								
								else	{
										soundManager.stop('marker69')
										}														 							
									}

			//create feature70 plus click event
			
					var lat70=51.4666				
					var lon70=-0.358869
					var lonLat70 = new OpenLayers.LonLat(lon70, lat70).transform(new OpenLayers.Projection("EPSG:4326"), map.getProjectionObject());
											
					feature70 = new OpenLayers.Feature(layerMarkers,lonLat70,{icon: new OpenLayers.Icon('images/speaker.png')})
				
					marker70 = feature70.createMarker();
				
					layerMarkers.addMarker(marker70);
				
					marker70.events.register("click", marker70, click70)
					
									
					function click70(evt) {
																								
								soundManager.createSound('marker70','http://audioboo.fm/boos/56152-landing-3g-s.mp3')
								
								if (soundManager.getSoundById('marker70').playState == 0) {
										soundManager.stopAll()
										soundManager.play('marker70')
																												
										}
								
								else	{
										soundManager.stop('marker70')
										}														 							
									}


			//create feature71 plus click event
			
					var lat71=51.4666				
					var lon71=-0.358869
					var lonLat71 = new OpenLayers.LonLat(lon71, lat71).transform(new OpenLayers.Projection("EPSG:4326"), map.getProjectionObject());
											
					feature71 = new OpenLayers.Feature(layerMarkers,lonLat71,{icon: new OpenLayers.Icon('images/speaker.png')})
				
					marker71 = feature71.createMarker();
				
					layerMarkers.addMarker(marker71);
				
					marker71.events.register("click", marker71, click71)
					
									
					function click71(evt) {
																								
								soundManager.createSound('marker71','http://audioboo.fm/boos/56153-landing-3g-ba-747-s.mp3')
								
								if (soundManager.getSoundById('marker71').playState == 0) {
										soundManager.stopAll()
										soundManager.play('marker71')
																												
										}
								
								else	{
										soundManager.stop('marker71')
										}														 							
									}
			
			//Feature 72 thru 82 North runway landing - used in surface interpolation			

			//create feature72 plus click event
			
					var lat72=51.4647				
					var lon72=-0.349048
					var lonLat72 = new OpenLayers.LonLat(lon72, lat72).transform(new OpenLayers.Projection("EPSG:4326"), map.getProjectionObject());
											
					feature72 = new OpenLayers.Feature(layerMarkers,lonLat72,{icon: new OpenLayers.Icon('images/speaker.png')})
				
					marker72 = feature72.createMarker();
				
					layerMarkers.addMarker(marker72);
				
					marker72.events.register("click", marker72, click72)
					
									
					function click72(evt) {
																								
								soundManager.createSound('marker72','http://audioboo.fm/boos/56154-landing-3g-ba-747-n.mp3')
								
								if (soundManager.getSoundById('marker72').playState == 0) {
										soundManager.stopAll()
										soundManager.play('marker72')
																												
										}
								
								else	{
										soundManager.stop('marker72')
										}														 							
									}

			//create feature73 plus click event
			
					var lat73=51.4654				
					var lon73=-0.349209
					var lonLat73 = new OpenLayers.LonLat(lon73, lat73).transform(new OpenLayers.Projection("EPSG:4326"), map.getProjectionObject());
											
					feature73 = new OpenLayers.Feature(layerMarkers,lonLat73,{icon: new OpenLayers.Icon('images/speaker.png')})
				
					marker73 = feature73.createMarker();
				
					layerMarkers.addMarker(marker73);
				
					marker73.events.register("click", marker73, click73)
					
									
					function click73(evt) {
																								
								soundManager.createSound('marker73','http://audioboo.fm/boos/56155-landing-3g-saudi-747-n.mp3')
								
								if (soundManager.getSoundById('marker73').playState == 0) {
										soundManager.stopAll()
										soundManager.play('marker73')
																												
										}
								
								else	{
										soundManager.stop('marker73')
										}														 							
									}

			//create feature74 plus click event
			
					var lat74=51.4675				
					var lon74=-0.343095
					var lonLat74 = new OpenLayers.LonLat(lon74, lat74).transform(new OpenLayers.Projection("EPSG:4326"), map.getProjectionObject());
											
					feature74 = new OpenLayers.Feature(layerMarkers,lonLat74,{icon: new OpenLayers.Icon('images/speaker.png')})
				
					marker74 = feature74.createMarker();
				
					layerMarkers.addMarker(marker74);
				
					marker74.events.register("click", marker74, click74)
					
									
					function click74(evt) {
																								
								soundManager.createSound('marker74','http://audioboo.fm/boos/56157-landing-3g-ba-747-n.mp3')
								
								if (soundManager.getSoundById('marker74').playState == 0) {
										soundManager.stopAll()
										soundManager.play('marker74')
																												
										}
								
								else	{
										soundManager.stop('marker74')
										}														 							
									}		
			//create feature75 plus click event
			
					var lat75=51.4708				
					var lon75=-0.33935
					var lonLat75 = new OpenLayers.LonLat(lon75, lat75).transform(new OpenLayers.Projection("EPSG:4326"), map.getProjectionObject());
											
					feature75 = new OpenLayers.Feature(layerMarkers,lonLat75,{icon: new OpenLayers.Icon('images/speaker.png')})
				
					marker75 = feature75.createMarker();
				
					layerMarkers.addMarker(marker75);
				
					marker75.events.register("click", marker75, click75)
					
									
					function click75(evt) {
																								
								soundManager.createSound('marker75','http://audioboo.fm/boos/56159-landing-3g-aa-n.mp3')
								
								if (soundManager.getSoundById('marker75').playState == 0) {
										soundManager.stopAll()
										soundManager.play('marker75')
																												
										}
								
								else	{
										soundManager.stop('marker75')
										}														 							
									}

			//create feature76 plus click event
			
					var lat76=51.4741				
					var lon76=-0.386207
					var lonLat76 = new OpenLayers.LonLat(lon76, lat76).transform(new OpenLayers.Projection("EPSG:4326"), map.getProjectionObject());
											
					feature76 = new OpenLayers.Feature(layerMarkers,lonLat76,{icon: new OpenLayers.Icon('images/speaker.png')})
				
					marker76 = feature76.createMarker();
				
					layerMarkers.addMarker(marker76);
				
					marker76.events.register("click", marker76, click76)
					
									
					function click76(evt) {
																								
								soundManager.createSound('marker76','http://audioboo.fm/boos/56398-landing-3g-qf-a380-s.mp3')
								
								if (soundManager.getSoundById('marker76').playState == 0) {
										soundManager.stopAll()
										soundManager.play('marker76')
																												
										}
								
								else	{
										soundManager.stop('marker76')
										}														 							
									}
									
			//create feature77 plus click event

			
					var lat77=51.4726				
					var lon77=-0.392003
					var lonLat77 = new OpenLayers.LonLat(lon77, lat77).transform(new OpenLayers.Projection("EPSG:4326"), map.getProjectionObject());
											
					feature77 = new OpenLayers.Feature(layerMarkers,lonLat77,{icon: new OpenLayers.Icon('images/speaker.png')})
				
					marker77 = feature77.createMarker();
				
					layerMarkers.addMarker(marker77);
				
					marker77.events.register("click", marker77, click77)
					
									
					function click77(evt) {
																								
								soundManager.createSound('marker77','http://audioboo.fm/boos/56399-landing-3g-qf-747-n.mp3')
								
								if (soundManager.getSoundById('marker77').playState == 0) {
										soundManager.stopAll()
										soundManager.play('marker77')
																												
										}
								
								else	{
										soundManager.stop('marker77')
										}														 							
									}
									
									
			//create feature78 plus click event
			
					var lat78=51.4673				
					var lon78=-0.392418
					var lonLat78 = new OpenLayers.LonLat(lon78, lat78).transform(new OpenLayers.Projection("EPSG:4326"), map.getProjectionObject());
											
					feature78 = new OpenLayers.Feature(layerMarkers,lonLat78,{icon: new OpenLayers.Icon('images/speaker.png')})
				
					marker78 = feature78.createMarker();
				
					layerMarkers.addMarker(marker78);
				
					marker78.events.register("click", marker78, click78)
					
									
					function click78(evt) {
																								
								soundManager.createSound('marker78','http://audioboo.fm/boos/56400-landing-3g-ba-747-n.mp3')
								
								if (soundManager.getSoundById('marker78').playState == 0) {
										soundManager.stopAll()
										soundManager.play('marker78')
																												
										}
								
								else	{
										soundManager.stop('marker78')
										}														 							
									}
									
			//create feature79 plus click event
			
					var lat79=51.4664				
					var lon79=-0.38461
					var lonLat79 = new OpenLayers.LonLat(lon79, lat79).transform(new OpenLayers.Projection("EPSG:4326"), map.getProjectionObject());
											
					feature79 = new OpenLayers.Feature(layerMarkers,lonLat79,{icon: new OpenLayers.Icon('images/speaker.png')})
				
					marker79 = feature79.createMarker();
				
					layerMarkers.addMarker(marker79);
				
					marker79.events.register("click", marker79, click79)
					
									
					function click79(evt) {
																								
								soundManager.createSound('marker79','http://audioboo.fm/boos/56402-landing-3g-ba-747-n.mp3')
								
								if (soundManager.getSoundById('marker79').playState == 0) {
										soundManager.stopAll()
										soundManager.play('marker79')
																												
										}
								
								else	{
										soundManager.stop('marker79')
										}														 							
									}
									
									
			//create feature80 plus click event
			
					var lat80=51.4653				
					var lon80=-0.371512
					var lonLat80 = new OpenLayers.LonLat(lon80, lat80).transform(new OpenLayers.Projection("EPSG:4326"), map.getProjectionObject());
											
					feature80 = new OpenLayers.Feature(layerMarkers,lonLat80,{icon: new OpenLayers.Icon('images/speaker.png')})
				
					marker80 = feature80.createMarker();
				
					layerMarkers.addMarker(marker80);
				
					marker80.events.register("click", marker80, click80)
					
									
					function click80(evt) {
																								
								soundManager.createSound('marker80','http://audioboo.fm/boos/56404-landing-3g-ac-n.mp3')
								
								if (soundManager.getSoundById('marker80').playState == 0) {
										soundManager.stopAll()
										soundManager.play('marker80')
																												
										}
								
								else	{
										soundManager.stop('marker80')
										}														 							
									}
									
									
			//create feature81 plus click event
			
					var lat81=51.4845				
					var lon81=-0.344397
					var lonLat81 = new OpenLayers.LonLat(lon81, lat81).transform(new OpenLayers.Projection("EPSG:4326"), map.getProjectionObject());
											
					feature81 = new OpenLayers.Feature(layerMarkers,lonLat81,{icon: new OpenLayers.Icon('images/speaker.png')})
				
					marker81 = feature81.createMarker();
				
					layerMarkers.addMarker(marker81);
				
					marker81.events.register("click", marker81, click81)
					
									
					function click81(evt) {
																								
								soundManager.createSound('marker81','http://audioboo.fm/boos/56615-landing-3g-ba-747-n.mp3')
								
								if (soundManager.getSoundById('marker81').playState == 0) {
										soundManager.stopAll()
										soundManager.play('marker81')
																												
										}
								
								else	{
										soundManager.stop('marker81')
										}														 							
									}
									
								
			//create feature82 plus click event
			//North runway landing - used in surface interpolation
			
					var lat82=51.484				
					var lon82=-0.34254
					var lonLat82 = new OpenLayers.LonLat(lon82, lat82).transform(new OpenLayers.Projection("EPSG:4326"), map.getProjectionObject());
											
					feature82 = new OpenLayers.Feature(layerMarkers,lonLat82,{icon: new OpenLayers.Icon('images/speaker.png')})
				
					marker82 = feature82.createMarker();
				
					layerMarkers.addMarker(marker82);
				
					marker82.events.register("click", marker82, click82)
					
									
					function click82(evt) {
																								
								soundManager.createSound('marker82','http://audioboo.fm/boos/56616-landing-3g-sa-747-n.mp3')
								
								if (soundManager.getSoundById('marker82').playState == 0) {
										soundManager.stopAll()
										soundManager.play('marker82')
																												
										}
								
								else	{
										soundManager.stop('marker82')
										}														 							
									}

			//create feature83 plus click event
			
					var lat83=51.4812				
					var lon83=-0.34398
					var lonLat83 = new OpenLayers.LonLat(lon83, lat83).transform(new OpenLayers.Projection("EPSG:4326"), map.getProjectionObject());
											
					feature83 = new OpenLayers.Feature(layerMarkers,lonLat83,{icon: new OpenLayers.Icon('images/speaker.png')})
				
					marker83 = feature83.createMarker();
				
					layerMarkers.addMarker(marker83);
				
					marker83.events.register("click", marker83, click83)
					
									
					function click83(evt) {
																								
								soundManager.createSound('marker83','http://audioboo.fm/boos/56617-landing-3g-cx-747-s.mp3')
								
								if (soundManager.getSoundById('marker83').playState == 0) {
										soundManager.stopAll()
										soundManager.play('marker83')
																												
										}
								
								else	{
										soundManager.stop('marker83')
										}														 							
									}
		    	 		
			//Feature 84 thru 88 North runway landing - used in surface interpolation

			//create feature84 plus click event
			
					var lat84=51.4812				
					var lon84=-0.34398
					var lonLat84 = new OpenLayers.LonLat(lon84, lat84).transform(new OpenLayers.Projection("EPSG:4326"), map.getProjectionObject());
											
					feature84 = new OpenLayers.Feature(layerMarkers,lonLat84,{icon: new OpenLayers.Icon('images/speaker.png')})
				
					marker84 = feature84.createMarker();
				
					layerMarkers.addMarker(marker84);
				
					marker84.events.register("click", marker84, click84)
					
									
					function click84(evt) {
																								
								soundManager.createSound('marker84','http://audioboo.fm/boos/56618-landing-3g-ac-n.mp3')
								
								if (soundManager.getSoundById('marker84').playState == 0) {
										soundManager.stopAll()
										soundManager.play('marker84')
																												
										}
								
								else	{
										soundManager.stop('marker84')
										}														 							
									}
	
			//create feature85 plus click event
			
					var lat85=51.4782				
					var lon85=-0.345403
					var lonLat85 = new OpenLayers.LonLat(lon85, lat85).transform(new OpenLayers.Projection("EPSG:4326"), map.getProjectionObject());
											
					feature85 = new OpenLayers.Feature(layerMarkers,lonLat85,{icon: new OpenLayers.Icon('images/speaker.png')})
				
					marker85 = feature85.createMarker();
				
					layerMarkers.addMarker(marker85);
				
					marker85.events.register("click", marker85, click85)
					
									
					function click85(evt) {
																								
								soundManager.createSound('marker85','http://audioboo.fm/boos/56621-landing-3g-ba-n.mp3')
								
								if (soundManager.getSoundById('marker85').playState == 0) {
										soundManager.stopAll()
										soundManager.play('marker85')
																												
										}
								
								else	{
										soundManager.stop('marker85')
										}														 							
									}

			//create feature86 plus click event
			
					var lat86=51.4782				
					var lon86=-0.345403
					var lonLat86 = new OpenLayers.LonLat(lon86, lat86).transform(new OpenLayers.Projection("EPSG:4326"), map.getProjectionObject());
											
					feature86 = new OpenLayers.Feature(layerMarkers,lonLat86,{icon: new OpenLayers.Icon('images/speaker.png')})
				
					marker86 = feature86.createMarker();
				
					layerMarkers.addMarker(marker86);
				
					marker86.events.register("click", marker86, click86)
					
									
					function click86(evt) {
																								
								soundManager.createSound('marker86','http://audioboo.fm/boos/56622-landing_3g-ba-747-n.mp3')
								
								if (soundManager.getSoundById('marker86').playState == 0) {
										soundManager.stopAll()
										soundManager.play('marker86')
																												
										}
								
								else	{
										soundManager.stop('marker86')
										}														 							
									}


			//create feature87 plus click event
			
					var lat87=51.4772				
					var lon87=-0.344577
					var lonLat87 = new OpenLayers.LonLat(lon87, lat87).transform(new OpenLayers.Projection("EPSG:4326"), map.getProjectionObject());
											
					feature87 = new OpenLayers.Feature(layerMarkers,lonLat87,{icon: new OpenLayers.Icon('images/speaker.png')})
				
					marker87 = feature87.createMarker();
				
					layerMarkers.addMarker(marker87);
				
					marker87.events.register("click", marker87, click87)
					
									
					function click87(evt) {
																								
								soundManager.createSound('marker87','http://audioboo.fm/boos/56623-landing-3g-ba-747-n.mp3')
								
								if (soundManager.getSoundById('marker87').playState == 0) {
										soundManager.stopAll()
										soundManager.play('marker87')
																												
										}
								
								else	{
										soundManager.stop('marker87')
										}														 							
									}
			//create feature88 plus click event
			
					var lat88=51.4777				
					var lon88=-0.340283
					var lonLat88 = new OpenLayers.LonLat(lon88, lat88).transform(new OpenLayers.Projection("EPSG:4326"), map.getProjectionObject());
											
					feature88 = new OpenLayers.Feature(layerMarkers,lonLat88,{icon: new OpenLayers.Icon('images/speaker.png')})
				
					marker88 = feature88.createMarker();
				
					layerMarkers.addMarker(marker88);
				
					marker88.events.register("click", marker88, click88)
					
									
					function click88(evt) {
																								
								soundManager.createSound('marker88','http://audioboo.fm/boos/56624-landing-3g-ba-747-n.mp3')
								
								if (soundManager.getSoundById('marker88').playState == 0) {
										soundManager.stopAll()
										soundManager.play('marker88')
																												
										}
								
								else	{
										soundManager.stop('marker88')
										}														 							
									}

			//create feature89 plus click event
			
					var lat89=51.4772				
					var lon89=-0.336894
					var lonLat89 = new OpenLayers.LonLat(lon89, lat89).transform(new OpenLayers.Projection("EPSG:4326"), map.getProjectionObject());
											
					feature89 = new OpenLayers.Feature(layerMarkers,lonLat89,{icon: new OpenLayers.Icon('images/speaker.png')})
				
					marker89 = feature89.createMarker();
				
					layerMarkers.addMarker(marker89);
				
					marker89.events.register("click", marker89, click89)
					
									
					function click89(evt) {
																								
								soundManager.createSound('marker89','http://audioboo.fm/boos/56625-landing-3g-qf-747-s.mp3')
								
								if (soundManager.getSoundById('marker89').playState == 0) {
										soundManager.stopAll()
										soundManager.play('marker89')
																												
										}
								
								else	{
										soundManager.stop('marker89')
										}														 							
									}

			//Feature 90 thru 100 North runway landing - used in surface interpolation

			//create feature90 plus click event
			
					var lat90=51.4793				
					var lon90=-0.334195
					var lonLat90 = new OpenLayers.LonLat(lon90, lat90).transform(new OpenLayers.Projection("EPSG:4326"), map.getProjectionObject());
											
					feature90 = new OpenLayers.Feature(layerMarkers,lonLat90,{icon: new OpenLayers.Icon('images/speaker.png')})
				
					marker90 = feature90.createMarker();
				
					layerMarkers.addMarker(marker90);
				
					marker90.events.register("click", marker90, click90)
					
									
					function click90(evt) {
																								
								soundManager.createSound('marker90','http://audioboo.fm/boos/56626-vs-a320-n.mp3')
								
								if (soundManager.getSoundById('marker90').playState == 0) {
										soundManager.stopAll()
										soundManager.play('marker90')
																												
										}
								
								else	{
										soundManager.stop('marker90')
										}														 							
									}		
			//create feature91 plus click event
			
					var lat91=51.4802				
					var lon91=-0.332618
					var lonLat91 = new OpenLayers.LonLat(lon91, lat91).transform(new OpenLayers.Projection("EPSG:4326"), map.getProjectionObject());
											
					feature91 = new OpenLayers.Feature(layerMarkers,lonLat91,{icon: new OpenLayers.Icon('images/speaker.png')})
				
					marker91 = feature91.createMarker();
				
					layerMarkers.addMarker(marker91);
				
					marker91.events.register("click", marker91, click91)
					
									
					function click91(evt) {
																								
								soundManager.createSound('marker91','http://audioboo.fm/boos/56627-landing-3g-ba-747-n.mp3')
								
								if (soundManager.getSoundById('marker91').playState == 0) {
										soundManager.stopAll()
										soundManager.play('marker91')
																												
										}
								
								else	{
										soundManager.stop('marker91')
										}														 							
									}

			//create feature92 plus click event
			
					var lat92=51.4802				
					var lon92=-0.332618
					var lonLat92 = new OpenLayers.LonLat(lon92, lat92).transform(new OpenLayers.Projection("EPSG:4326"), map.getProjectionObject());
											
					feature92 = new OpenLayers.Feature(layerMarkers,lonLat92,{icon: new OpenLayers.Icon('images/speaker.png')})
				
					marker92 = feature92.createMarker();
				
					layerMarkers.addMarker(marker92);
				
					marker92.events.register("click", marker92, click92)
					
									
					function click92(evt) {
																								
								soundManager.createSound('marker92','http://audioboo.fm/boos/56628-landing-3g-ba-747-n.mp3')
								
								if (soundManager.getSoundById('marker92').playState == 0) {
										soundManager.stopAll()
										soundManager.play('marker92')
																												
										}
								
								else	{
										soundManager.stop('marker92')
										}														 							
									}

			//create feature93 plus click event
			
					var lat93=51.4825				
					var lon93=-0.327211
					var lonLat93 = new OpenLayers.LonLat(lon93, lat93).transform(new OpenLayers.Projection("EPSG:4326"), map.getProjectionObject());
											
					feature93 = new OpenLayers.Feature(layerMarkers,lonLat93,{icon: new OpenLayers.Icon('images/speaker.png')})
				
					marker93 = feature93.createMarker();
				
					layerMarkers.addMarker(marker93);
				
					marker93.events.register("click", marker93, click93)
					
									
					function click93(evt) {
																								
								soundManager.createSound('marker93','http://audioboo.fm/boos/56629-landing-3g-ba-747-n.mp3')
								
								if (soundManager.getSoundById('marker93').playState == 0) {
										soundManager.stopAll()
										soundManager.play('marker93')
																												
										}
								
								else	{
										soundManager.stop('marker93')
										}														 							
									}
		    	 		

			//create feature94 plus click event
			
					var lat94=51.4816				
					var lon94=-0.323759
					var lonLat94 = new OpenLayers.LonLat(lon94, lat94).transform(new OpenLayers.Projection("EPSG:4326"), map.getProjectionObject());
											
					feature94 = new OpenLayers.Feature(layerMarkers,lonLat94,{icon: new OpenLayers.Icon('images/speaker.png')})
				
					marker94 = feature94.createMarker();
				
					layerMarkers.addMarker(marker94);
				
					marker94.events.register("click", marker94, click94)
					
									
					function click94(evt) {
																								
								soundManager.createSound('marker94','http://audioboo.fm/boos/56630-landing-3g-ba-747-n.mp3')
								
								if (soundManager.getSoundById('marker94').playState == 0) {
										soundManager.stopAll()
										soundManager.play('marker94')
																												
										}
								
								else	{
										soundManager.stop('marker94')
										}														 							
									}
	
			//create feature95 plus click event
			
					var lat95=51.4831				
					var lon95=-0.318736
					var lonLat95 = new OpenLayers.LonLat(lon95, lat95).transform(new OpenLayers.Projection("EPSG:4326"), map.getProjectionObject());
											
					feature95 = new OpenLayers.Feature(layerMarkers,lonLat95,{icon: new OpenLayers.Icon('images/speaker.png')})
				
					marker95 = feature95.createMarker();
				
					layerMarkers.addMarker(marker95);
				
					marker95.events.register("click", marker95, click95)
					
									
					function click95(evt) {
																								
								soundManager.createSound('marker95','http://audioboo.fm/boos/56631-landing-3g-vs-747-n.mp3')
								
								if (soundManager.getSoundById('marker95').playState == 0) {
										soundManager.stopAll()
										soundManager.play('marker95')
																												
										}
								
								else	{
										soundManager.stop('marker95')
										}														 							
									}

			//create feature96 plus click event
			
					var lat96=51.4846				
					var lon96=-0.309158
					var lonLat96 = new OpenLayers.LonLat(lon96, lat96).transform(new OpenLayers.Projection("EPSG:4326"), map.getProjectionObject());
											
					feature96 = new OpenLayers.Feature(layerMarkers,lonLat96,{icon: new OpenLayers.Icon('images/speaker.png')})
				
					marker96 = feature96.createMarker();
				
					layerMarkers.addMarker(marker96);
				
					marker96.events.register("click", marker96, click96)
					
									
					function click96(evt) {
																								
								soundManager.createSound('marker96','http://audioboo.fm/boos/56637-landing-3g-ba-747-n.mp3')
								
								if (soundManager.getSoundById('marker96').playState == 0) {
										soundManager.stopAll()
										soundManager.play('marker96')
																												
										}
								
								else	{
										soundManager.stop('marker96')
										}														 							
									}


			//create feature97 plus click event
			
					var lat97=51.4855				
					var lon97=-0.309584
					var lonLat97 = new OpenLayers.LonLat(lon97, lat97).transform(new OpenLayers.Projection("EPSG:4326"), map.getProjectionObject());
											
					feature97 = new OpenLayers.Feature(layerMarkers,lonLat97,{icon: new OpenLayers.Icon('images/speaker.png')})
				
					marker97 = feature97.createMarker();
				
					layerMarkers.addMarker(marker97);
				
					marker97.events.register("click", marker97, click97)
					
									
					function click97(evt) {
																								
								soundManager.createSound('marker97','http://audioboo.fm/boos/56640-landing-3g-aa-n.mp3')
								
								if (soundManager.getSoundById('marker97').playState == 0) {
										soundManager.stopAll()
										soundManager.play('marker97')
																												
										}
								
								else	{
										soundManager.stop('marker97')
										}														 							
									}
			//create feature98 plus click event
			
					var lat98=51.4855				
					var lon98=-0.309584
					var lonLat98 = new OpenLayers.LonLat(lon98, lat98).transform(new OpenLayers.Projection("EPSG:4326"), map.getProjectionObject());
											
					feature98 = new OpenLayers.Feature(layerMarkers,lonLat98,{icon: new OpenLayers.Icon('images/speaker.png')})
				
					marker98 = feature98.createMarker();
				
					layerMarkers.addMarker(marker98);
				
					marker98.events.register("click", marker98, click98)
					
									
					function click98(evt) {
																								
								soundManager.createSound('marker98','http://audioboo.fm/boos/56641-landing-3g-ba-747-n.mp3')
								
								if (soundManager.getSoundById('marker98').playState == 0) {
										soundManager.stopAll()
										soundManager.play('marker98')
																												
										}
								
								else	{
										soundManager.stop('marker98')
										}														 							
									}

			//create feature99 plus click event
			
					var lat99=51.4867				
					var lon99=-0.312164
					var lonLat99 = new OpenLayers.LonLat(lon99, lat99).transform(new OpenLayers.Projection("EPSG:4326"), map.getProjectionObject());
											
					feature99 = new OpenLayers.Feature(layerMarkers,lonLat99,{icon: new OpenLayers.Icon('images/speaker.png')})
				
					marker99 = feature99.createMarker();
				
					layerMarkers.addMarker(marker99);
				
					marker99.events.register("click", marker99, click99)
					
									
					function click99(evt) {
																								
								soundManager.createSound('marker99','http://audioboo.fm/boos/56643-landing-3g-ei-n.mp3')
								
								if (soundManager.getSoundById('marker99').playState == 0) {
										soundManager.stopAll()
										soundManager.play('marker99')
																												
										}
								
								else	{
										soundManager.stop('marker99')
										}														 							
									}

			//create feature100 plus click event
			
					var lat100=51.4871				
					var lon100=-0.311436
					var lonLat100 = new OpenLayers.LonLat(lon100, lat100).transform(new OpenLayers.Projection("EPSG:4326"), map.getProjectionObject());
											
					feature100 = new OpenLayers.Feature(layerMarkers,lonLat100,{icon: new OpenLayers.Icon('images/speaker.png')})
				
					marker100 = feature100.createMarker();
				
					layerMarkers.addMarker(marker100);
				
					marker100.events.register("click", marker100, click100)
					
									
					function click100(evt) {
																								
								soundManager.createSound('marker100','http://audioboo.fm/boos/56644-landing-3g-ac-n.mp3')
								
								if (soundManager.getSoundById('marker100').playState == 0) {
										soundManager.stopAll()
										soundManager.play('marker100')
																												
										}
								
								else	{
										soundManager.stop('marker100')
										}														 							
									}


			//create feature101 plus click event
			//Excluded from analysis due to interference

					var lat101=51.4858				
					var lon101=0.082324
					var lonLat101 = new OpenLayers.LonLat(lon101, lat101).transform(new OpenLayers.Projection("EPSG:4326"), map.getProjectionObject());
											
					feature101 = new OpenLayers.Feature(layerMarkers,lonLat101,{icon: new OpenLayers.Icon('images/speaker.png')})
				
					marker101 = feature101.createMarker();
				
					layerMarkers.addMarker(marker101);
				
					marker101.events.register("click", marker101, click101)
					
									
					function click101(evt) {
																								
								soundManager.createSound('marker101','http://audioboo.fm/boos/58357-there-s-a-reason-for-thatboo.mp3')
								
								if (soundManager.getSoundById('marker101').playState == 0) {
										soundManager.stopAll()
										soundManager.play('marker101')
																												
										}
								
								else	{
										soundManager.stop('marker101')
										}														 							
									}					
	
			//Events 102 / 103 / 104 / 105 / 106 / 108 Used in calibration of the iPhone, not included as AudioMarkers however included in analysis

			//create feature109 plus click event
			//Obtained after post analysis and surface interpolation of data
			//Time and location of boo incorrect, boo recorded at 51.4858/-0.38465 but not uploaded insitu due to server error
			//North runway landing - used in surface interpolation

					var lat101=51.4858				
					var lon101=-0.38465
					var lonLat109 = new OpenLayers.LonLat(lon109, lat109).transform(new OpenLayers.Projection("EPSG:4326"), map.getProjectionObject());
											
					feature109 = new OpenLayers.Feature(layerMarkers,lonLat109,{icon: new OpenLayers.Icon('images/speaker.png')})
				
					marker109 = feature109.createMarker();
				
					layerMarkers.addMarker(marker109);
				
					marker109.events.register("click", marker109, click109)
					
									
					function click109(evt) {
																								
								soundManager.createSound('marker109','http://audioboo.fm/boos/65956-landing-3g-ba-n.mp3')
								
								if (soundManager.getSoundById('marker109').playState == 0) {
										soundManager.stopAll()
										soundManager.play('marker109')
																												
										}
								
								else	{
										soundManager.stop('marker109')
										}														 							
									}


}