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

function initialize() {
  if (GBrowserIsCompatible()) {
	// Create new map object
	map = new GMap2(document.getElementById("map_canvas"));
	// Create new direction object
	gdir = new GDirections(map, document.getElementById("directions"));
	GEvent.addListener(gdir, "load", onGDirectionsLoad);
	GEvent.addListener(gdir, "error", handleErrors);
	
//	map.addControl(new GLargeMapControl());
	map.addControl(new GSmallMapControl);
//	map.addControl(new GSmallZoomControl);
//	map.addControl(new GScaleControl());
//	map.addControl(new GOverviewMapControl());
	
	// Create new geocoding object
	geocoder = new GClientGeocoder();
	
	// Retrieve location information, pass it to addToMap()
	//geocoder.getLocations(address, addToMap);
  }
}

// This function adds the point to the map
function addToMap(response)
{
  // Retrieve the object
  place = response.Placemark[0];

  // Retrieve the latitude and longitude
  point = new GLatLng(place.Point.coordinates[1],
					  place.Point.coordinates[0]);

  // Center the map on this point
  map.setCenter(point, 15);

  // Create a marker
  marker = new GMarker(point);

  // Add the marker to map
  map.addOverlay(marker);

  // Add address information to marker
  marker.openInfoWindowHtml("<b><u>Rodeo Drive Motors</u><br>1480 Boundary Road,<br>Burnaby, BC<br>Canada &nbsp;&nbsp;V5K 4V3</b>");
}

function showAddress(address) {
  // Retrieve location information, pass it to addToMap()
  geocoder.getLocations(address, addToMap);
}

function setDirections(fromAddress, toAddress, locale) {
	if (fromAddress == ""){
		document.getElementById("map_canvas").style.width = "100%";
		resetMap();
		
		showAddress("1480 Boundary Rd,Burnaby,BC,Canada");
	}
	else{
		document.getElementById("map_canvas").style.width = "230px";
		resetMap();
		
		gdir.load("from: " + fromAddress + " to: " + toAddress,
			{ "locale": locale });
	}
}

function resetMap(){
	gdir.clear();
	map = null;
	gdir = null;
	geocoder = null;
	initialize();
}

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_UNAVAILABLE_ADDRESS)  <--- Doc bug... this is either not defined, or Doc is wrong
//     alert("The geocode for the given address or the route for the given directions query cannot be returned due to legal or contractual reasons.\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(){ 
  // Use this function to access information about the latest load()
  // results.

  // e.g.
  // document.getElementById("getStatus").innerHTML = gdir.getStatus().code;
  // and yada yada yada...
}