var bounds;

function polyDepartement() {
     
     downloadUrl(contour_file, function(data) {
    	bounds = new google.maps.LatLngBounds();
   	  	pms = data.documentElement.getElementsByTagName("Placemark"); 
   	  	var coordinates;
			coordinates = pms[0].getElementsByTagName("coordinates")[0].childNodes[0].nodeValue;
			for(var chunk=1;  chunk<pms[0].getElementsByTagName("coordinates")[0].childNodes.length;chunk++){
				 coordinates+=pms[0].getElementsByTagName("coordinates")[0].childNodes[chunk].nodeValue;
			}
			coordinates = coordinates.split(" ");
			for(var j=0; j<coordinates.length;j++){
				coordinates[j] = coordinates[j].split(",");
			}
			
			var points = new Array();					
			for(var j=0; j<coordinates.length; j++){
				var ll = new google.maps.LatLng(parseFloat(coordinates[j][1]),parseFloat(coordinates[j][0]));
				points.push(ll);	
				bounds.extend(ll);
			}
				
			var plOptions = {
			    		 map:map,
			    		 clickable:false,
			    		 paths:points,
			    		 strokeColor:"#EF5512",
			    		 strokeOpacity:0.8,
			    		 fillColor:"#EF5512",
			    		 fillOpacity:0.1
			    		 
			     };
			      
			var pll = new google.maps.Polygon(plOptions);
			map.fitBounds(bounds);	
					
     } );
 }