var map = null;
var gdir;
var geocoder = null;
var addressMarker;

function load()
{
	if (GBrowserIsCompatible()) 
	{
		map = new GMap2(document.getElementById("map_canvas"));
		//map.setCenter(new GLatLng(34, 0), 1);
        gdir = new GDirections(map, document.getElementById("directions"));
        GEvent.addListener(gdir, "load", onGDirectionsLoad);
        GEvent.addListener(gdir, "error", handleErrors);

		map.setCenter(new GLatLng(51.88762, -2.10165), 16);
		
		map.addControl(new GLargeMapControl());
		map.addControl(new GScaleControl());
		
		map.setMapType(G_HYBRID_MAP);
		
		geocoder = new GClientGeocoder();
		
		showAddress("51.88762, -2.10165");
		//var point = (51.88762, -2.10165)
		//var marker = new GMarker(point);
		//map.addOverlay(marker);

	}
}

function showAddress(address) 
{
	if (geocoder) 
	{
		geocoder.getLatLng(address,	function(point) 
		{
			if (!point) 
			{
				alert(address + " not found");
			}
			else 
			{
				//alert(point);
				map.setCenter(point, 16);
				var marker = new GMarker(point);
				map.addOverlay(marker);
				
				BubbleText = "<strong>Bournside School, Warden Hill Road, Cheltenham GL51 3EF</strong><BR>"
				BubbleText = BubbleText + "- Changing rooms are inside the main building<BR>"
				BubbleText = BubbleText + "- Drive all the way up the main drive and use the entrance there.<BR>"
				BubbleText = BubbleText + "- You must go through the school and out the other side to get to the pitch"
				
				marker.openInfoWindowHtml(BubbleText);

				map.setCenter(new GLatLng(51.88762, -2.10165), 16);
				//alert(point);
			}
		}
		);
	}
}

    function setDirections(fromAddress, toAddress, locale) {
      gdir.load("from: " + fromAddress + " to: " + toAddress,
                { "locale": locale });
    }

    function handleErrors(){
   if (gdir.getStatus().code == G_GEO_UNKNOWN_ADDRESS)
     alert("No corresponding geographic location could be found for one of the specified addresses. This may be due to the fact that the address is relatively new, or it may be incorrect.\nError code: " + gdir.getStatus().code);
   else if (gdir.getStatus().code == G_GEO_SERVER_ERROR)
     alert("A geocoding or directions request could not be successfully processed, yet the exact reason for the failure is not known.\n Error code: " + gdir.getStatus().code);
   else if (gdir.getStatus().code == G_GEO_MISSING_QUERY)
     alert("The HTTP q parameter was either missing or had no value. For geocoder requests, this means that an empty address was specified as input. For directions requests, this means that no query was specified in the input.\n Error code: " + gdir.getStatus().code);
   else if (gdir.getStatus().code == G_GEO_BAD_KEY)
     alert("The given key is either invalid or does not match the domain for which it was given. \n Error code: " + gdir.getStatus().code);
   else if (gdir.getStatus().code == G_GEO_BAD_REQUEST)
     alert("A directions request could not be successfully parsed.\n Error code: " + gdir.getStatus().code);
   else alert("An unknown error occurred.");
    }

  function onGDirectionsLoad(){ 
   var poly = gdir.getPolyline();
   if (poly.getVertexCount() > 100) {
     //alert("This route has too many vertices");
     return;
   }
   var baseUrl = "http://maps.google.com/staticmap?";

   var params = [];
   var markersArray = [];
   markersArray.push(poly.getVertex(0).toUrlValue(5) + ",greena");
   markersArray.push(poly.getVertex(poly.getVertexCount()-1).toUrlValue(5) + ",greenb");
   params.push("markers=" + markersArray.join("|"));

   var polyParams = "rgba:0x0000FF80,weight:5|";
   var polyLatLngs = [];
   for (var j = 0; j < poly.getVertexCount(); j++) {
     polyLatLngs.push(poly.getVertex(j).lat().toFixed(5) + "," + poly.getVertex(j).lng().toFixed(5));
   }
   params.push("path=" + polyParams + polyLatLngs.join("|"));
   params.push("size=300x300");
   params.push("key=ABQIAAAAjU0EJWnWPMv7oQ-jjS7dYxSPW5CJgpdgO_s4yyMovOaVh_KvvhSfpvagV18eOyDWu7VytS6Bi1CWxw");

   baseUrl += params.join("&");
}