function initMap() {
	var map;
	var toggleState = 1;
	var icon = new GIcon();
		icon.image = "http://www.sara-tx.org/google_map/mm_20_blue.png";
		icon.shadow = "http://www.sara-tx.org/google_map/mm_20_shadow.png";
		icon.iconSize = new GSize(12, 20);
		icon.shadowSize = new GSize(22, 20);
		icon.iconAnchor = new GPoint(6, 20);
		icon.infoWindowAnchor = new GPoint(5, 1);
	var banner_icon = new GIcon();
		banner_icon.image = "http://www.sara-tx.org/google_map/zoom_in_banner.png";
		banner_icon.iconAnchor = new GPoint(175, 75);
	
	// === Create the tilelayer for watersheds===
	var tilelayer_sar_ws = new GTileLayer(new GCopyrightCollection(), 0, 17);
	  
	// === Set the getTileUrl to use the Google KML tile processor with our KML file ===
	tilelayer_sar_ws.getTileUrl = function(a,b) {
		b=this.maxResolution()-b;
		return "http://maps.google.com/mapsdt?id=http://www.sara-tx.org/google_map/sar_ws1.kml&x="+a.x+"&y="+a.y+"&zoom="+b;
	}
	tilelayer_sar_ws.isPng = function() {return true;}
	var watershed = new GTileLayerOverlay(tilelayer_sar_ws);
	
	var tilelayer_AlazanRiver = new GTileLayer(new GCopyrightCollection(), 0, 17);
	tilelayer_AlazanRiver.getTileUrl = function(a,b) {
		b=this.maxResolution()-b;
		return "http://maps.google.com/mapsdt?id=http://www.sara-tx.org/google_map/SARARivers/AlazanRiver.kml&x="+a.x+"&y="+a.y+"&zoom="+b;
	}
      tilelayer_AlazanRiver.isPng = function() {return true;}
	  var AlazanRiver = new GTileLayerOverlay(tilelayer_AlazanRiver);
	
	var tilelayer_ApacheRiver = new GTileLayer(new GCopyrightCollection(), 0, 17);
	tilelayer_ApacheRiver.getTileUrl = function(a,b) {
		b=this.maxResolution()-b;
		return "http://maps.google.com/mapsdt?id=http://www.sara-tx.org/google_map/SARARivers/ApacheRiver.kml&x="+a.x+"&y="+a.y+"&zoom="+b;
	}
      tilelayer_ApacheRiver.isPng = function() {return true;}
	  var ApacheRiver = new GTileLayerOverlay(tilelayer_ApacheRiver);
	
	var tilelayer_CabezaRiver = new GTileLayer(new GCopyrightCollection(), 0, 17);
	tilelayer_CabezaRiver.getTileUrl = function(a,b) {
		b=this.maxResolution()-b;
		return "http://maps.google.com/mapsdt?id=http://www.sara-tx.org/google_map/SARARivers/CabezaRiver.kml&x="+a.x+"&y="+a.y+"&zoom="+b;
	}
      tilelayer_CabezaRiver.isPng = function() {return true;}
	  var CabezaRiver = new GTileLayerOverlay(tilelayer_CabezaRiver);
	
	var tilelayer_CiboloRiver = new GTileLayer(new GCopyrightCollection(), 0, 17);
	tilelayer_CiboloRiver.getTileUrl = function(a,b) {
		b=this.maxResolution()-b;
		return "http://maps.google.com/mapsdt?id=http://www.sara-tx.org/google_map/SARARivers/CiboloRiver.kml&x="+a.x+"&y="+a.y+"&zoom="+b;
	}
      tilelayer_CiboloRiver.isPng = function() {return true;}
	  var CiboloRiver = new GTileLayerOverlay(tilelayer_CiboloRiver);
	
	var tilelayer_EscondidoRiver = new GTileLayer(new GCopyrightCollection(), 0, 17);
	tilelayer_CiboloRiver.getTileUrl = function(a,b) {
		b=this.maxResolution()-b;
		return "http://maps.google.com/mapsdt?id=http://www.sara-tx.org/google_map/SARARivers/CiboloRiver.kml&x="+a.x+"&y="+a.y+"&zoom="+b;
	}
      tilelayer_CiboloRiver.isPng = function() {return true;}
	  var CiboloRiver = new GTileLayerOverlay(tilelayer_CiboloRiver);
	
	var tilelayer_EscondidoRiver = new GTileLayer(new GCopyrightCollection(), 0, 17);
	tilelayer_EscondidoRiver.getTileUrl = function(a,b) {
		b=this.maxResolution()-b;
		return "http://maps.google.com/mapsdt?id=http://www.sara-tx.org/google_map/SARARivers/EscondidoRiver.kml&x="+a.x+"&y="+a.y+"&zoom="+b;
	}
      tilelayer_EscondidoRiver.isPng = function() {return true;}
	  var EscondidoRiver = new GTileLayerOverlay(tilelayer_EscondidoRiver);
	
	var tilelayer_HordRiver = new GTileLayer(new GCopyrightCollection(), 0, 17);
	tilelayer_HordRiver.getTileUrl = function(a,b) {
		b=this.maxResolution()-b;
		return "http://maps.google.com/mapsdt?id=http://www.sara-tx.org/google_map/SARARivers/HordRiver.kml&x="+a.x+"&y="+a.y+"&zoom="+b;
	}
      tilelayer_HordRiver.isPng = function() {return true;}
	  var HordRiver = new GTileLayerOverlay(tilelayer_HordRiver);
	
	var tilelayer_LeonRiver = new GTileLayer(new GCopyrightCollection(), 0, 17);
	tilelayer_LeonRiver.getTileUrl = function(a,b) {
		b=this.maxResolution()-b;
		return "http://maps.google.com/mapsdt?id=http://www.sara-tx.org/google_map/SARARivers/LeonRiver.kml&x="+a.x+"&y="+a.y+"&zoom="+b;
	}
      tilelayer_LeonRiver.isPng = function() {return true;}
	  var LeonRiver = new GTileLayerOverlay(tilelayer_LeonRiver);
	
	var tilelayer_LostRiver = new GTileLayer(new GCopyrightCollection(), 0, 17);
	tilelayer_LostRiver.getTileUrl = function(a,b) {
		b=this.maxResolution()-b;
		return "http://maps.google.com/mapsdt?id=http://www.sara-tx.org/google_map/SARARivers/LostRiver.kml&x="+a.x+"&y="+a.y+"&zoom="+b;
	}
      tilelayer_LostRiver.isPng = function() {return true;}
	  var LostRiver = new GTileLayerOverlay(tilelayer_LostRiver);
	
	var tilelayer_MartinezRiver = new GTileLayer(new GCopyrightCollection(), 0, 17);
	tilelayer_MartinezRiver.getTileUrl = function(a,b) {
		b=this.maxResolution()-b;
		return "http://maps.google.com/mapsdt?id=http://www.sara-tx.org/google_map/SARARivers/MartinezRiver.kml&x="+a.x+"&y="+a.y+"&zoom="+b;
	}
      tilelayer_MartinezRiver.isPng = function() {return true;}
	  var MartinezRiver = new GTileLayerOverlay(tilelayer_MartinezRiver);
	
	var tilelayer_MedinaRiver = new GTileLayer(new GCopyrightCollection(), 0, 17);
	tilelayer_MedinaRiver.getTileUrl = function(a,b) {
		b=this.maxResolution()-b;
		return "http://maps.google.com/mapsdt?id=http://www.sara-tx.org/google_map/SARARivers/MedinaRiver.kml&x="+a.x+"&y="+a.y+"&zoom="+b;
	}
      tilelayer_MedinaRiver.isPng = function() {return true;}
	  var MedinaRiver = new GTileLayerOverlay(tilelayer_MedinaRiver);
	
	var tilelayer_MedioRiver = new GTileLayer(new GCopyrightCollection(), 0, 17);
	tilelayer_MedioRiver.getTileUrl = function(a,b) {
		b=this.maxResolution()-b;
		return "http://maps.google.com/mapsdt?id=http://www.sara-tx.org/google_map/SARARivers/MedioRiver.kml&x="+a.x+"&y="+a.y+"&zoom="+b;
	}
      tilelayer_MedioRiver.isPng = function() {return true;}
	  var MedioRiver = new GTileLayerOverlay(tilelayer_MedioRiver);
	
	var tilelayer_SaladoRiver = new GTileLayer(new GCopyrightCollection(), 0, 17);
	tilelayer_SaladoRiver.getTileUrl = function(a,b) {
		b=this.maxResolution()-b;
		return "http://maps.google.com/mapsdt?id=http://www.sara-tx.org/google_map/SARARivers/SaladoRiver.kml&x="+a.x+"&y="+a.y+"&zoom="+b;
	}
      tilelayer_SaladoRiver.isPng = function() {return true;}
	  var SaladoRiver = new GTileLayerOverlay(tilelayer_SaladoRiver);
	
	var tilelayer_SalitrilloRiver = new GTileLayer(new GCopyrightCollection(), 0, 17);
	tilelayer_SalitrilloRiver.getTileUrl = function(a,b) {
		b=this.maxResolution()-b;
		return "http://maps.google.com/mapsdt?id=http://www.sara-tx.org/google_map/SARARivers/SalitrilloRiver.kml&x="+a.x+"&y="+a.y+"&zoom="+b;
	}
      tilelayer_SalitrilloRiver.isPng = function() {return true;}
	  var SalitrilloRiver = new GTileLayerOverlay(tilelayer_SalitrilloRiver);
	
	var tilelayer_SanAntonioRiver = new GTileLayer(new GCopyrightCollection(), 0, 17);
	tilelayer_SanAntonioRiver.getTileUrl = function(a,b) {
		b=this.maxResolution()-b;
		return "http://maps.google.com/mapsdt?id=http://www.sara-tx.org/google_map/SARARivers/SanAntonioRiver.kml&x="+a.x+"&y="+a.y+"&zoom="+b;
	}
      tilelayer_SanAntonioRiver.isPng = function() {return true;}
	  var SanAntonioRiver = new GTileLayerOverlay(tilelayer_SanAntonioRiver);
	
	var tilelayer_SanPedroRiver = new GTileLayer(new GCopyrightCollection(), 0, 17);
	tilelayer_SanPedroRiver.getTileUrl = function(a,b) {
		b=this.maxResolution()-b;
		return "http://maps.google.com/mapsdt?id=http://www.sara-tx.org/google_map/SARARivers/SanPedoRiver.kml&x="+a.x+"&y="+a.y+"&zoom="+b;
	}
      tilelayer_SanPedroRiver.isPng = function() {return true;}
	  var SanPedroRiver = new GTileLayerOverlay(tilelayer_SanPedroRiver);
		  
	  //var watershed = new GGeoXml("http://www.sara-tx.org/google_map/sar_ws.kml");
	  
	  
	function load() {
      if (GBrowserIsCompatible()) {
      	map = new GMap2(document.getElementById("map"));
        map.setCenter(new GLatLng(, ), );
        map.addControl(new GLargeMapControl());
        map.addControl(new GMapTypeControl());
		map.addOverlay(watershed);
		map.addOverlay(AlazanRiver);
		map.addOverlay(ApacheRiver);
		map.addOverlay(CabezaRiver);
		map.addOverlay(CiboloRiver);
		map.addOverlay(EscondidoRiver);
		map.addOverlay(HordRiver);
		map.addOverlay(LeonRiver);
		map.addOverlay(LostRiver);
		map.addOverlay(MartinezRiver);
		map.addOverlay(MedinaRiver);
		map.addOverlay(MedioRiver);
		map.addOverlay(SaladoRiver);
		map.addOverlay(SalitrilloRiver);
		map.addOverlay(SanAntonioRiver);
		map.addOverlay(SanPedroRiver);
		
        		        var point1 = new GLatLng(, )
        var marker1 = new GMarker(point1, icon);
        GEvent.addListener(marker1, "mouseover", function() { marker1.openInfoWindowHtml("<div id=\"pop-up\"><p><b><a href=\"/major_initiatives/water_quality_monitoring/basin_data/available_parameters.php?station_id=\" target=\"_parent\">Station No. </a></b></p><p></p><p>Data is available from:<br> to </p></div>"); });
		GEvent.addListener(marker1, "mouseout", function() { marker1.closeInfoWindow(); });
		GEvent.addListener(marker1, "click", function() { window.parent.location = "/major_initiatives/water_quality_monitoring/basin_data/available_parameters.php?station_id="  });
		GEvent.addListener(map,"zoomend", function(oldLevel,newLevel) {
			if(oldLevel>=10 && newLevel<10){
				map.removeOverlay(marker1);
			}
			if(oldLevel<10 && newLevel>=10){
				map.addOverlay(marker1);
			}
		});
				
		var banner_point = new GLatLng(, );
		var banner = new GMarker(banner_point, banner_icon);
		map.addOverlay(banner);
		GEvent.addListener(map,"click", function() { map.removeOverlay(banner); });
		
		GEvent.addListener(map,"zoomend", function(oldLevel,newLevel) {
			if(oldLevel<=11 && newLevel>11){
				map.removeOverlay(watershed);
				toggleState = 0;
			}
			if(oldLevel>11 && newLevel<=11){
				map.addOverlay(watershed);
				toggleState = 1;
			}
			map.removeOverlay(banner);
		});
      }
    }
	function toggleMyKml() {
	  if (toggleState == 1) {
	    map.removeOverlay(watershed);
	    toggleState = 0;
	  } else {
	    map.addOverlay(watershed);
	    toggleState = 1;
	  }
	}
}
$(document).ready(function() {initMap();});