﻿//<!--<![DATA[
function addUnloadEvent(func) {
	if (window.attachEvent) {
        window.attachEvent("onunload", function() {
                func; //GUnload();      // Internet Explorer
        });
	} else {
        window.addEventListener("unload", function() {
                func; //GUnload(); // Firefox and standard browsers
        }, false);
	}
}
function createMapObject() {
    map = new google.maps.Map2(document.getElementById("map"));    
    map.enableContinuousZoom();
    map.enableScrollWheelZoom();
    map.addControl(new GLargeMapControl());         
}

function hookImg(marker, infoText) {
		var img = document.getElementById("Mark" + marker.propId);
		img.onmouseover = function() { marker.openInfoWindowHtml(infoText); img.parentNode.style.color = '#cc0000';};
			img.onmouseout = function() { img.parentNode.style.color = ''; };
}

function showLatLong( lat,lng, idx, title ) {
			var latlng = new GLatLng(lat,lng);
			//map.setCenter(latlng,13);
			var marker = createMarker(latlng,idx,title);
			map.addOverlay(marker);
			var infoText = "<strong>" + title + "</strong>";
			marker.bindInfoWindowHtml(infoText);
			hookImg(marker, infoText);
}

function showAddress( address, idx, title, center, size ) {
	geocoder.getLatLng (
		address,
		function(point) {
			if (!point) {
				alert(address + " not found");
			} else {
			    if (center) map.setCenter(point, size);
//              var marker = new GMarker(point);
//              map.addOverlay(marker);
//              marker.openInfoWindowHtml(address);	
          				
				var marker = createMarker(point,idx,title);
				map.addOverlay(marker);
				//var infoText = "<strong>" + title + "</strong><br />" +address;
				marker.bindInfoWindowHtml(title);	              
				marker.openInfoWindowHtml(title);	
			}
		}
	);
}

// Creates a marker whose info window displays the letter corresponding
// to the given index.
function createMarker(point, index, iconTitle) {
	// Create a lettered icon for this point using our icon class
	var letter = String.fromCharCode("A".charCodeAt(0) + index);
	var letteredIcon = new GIcon(baseIcon);
	letteredIcon.image = "http://www.google.com/mapfiles/marker" + letter + ".png";

	// Set up our GMarkerOptions object
	markerOptions = { title:iconTitle, icon:letteredIcon, draggable: false };
	var marker = new GMarker(point, markerOptions);

	// append custom property to the marker
	marker.propId = letter;
  
	return marker;
}

function setDirections(fromAddress, toAddress, locale) {
    //alert(fromAddress);
    //alert(toAddress);
    var rte = document.getElementById("route");
    rte.innerHTML='';

    if ( fromAddress == "" ){ alert('Please enter your from address.');return;}
    if ( toAddress == "" ){ alert('Please enter your to address.');return;}
    //if ( !map ) {
    //    map = new google.maps.Map2(document.getElementById("map"));
    //}
    createMapObject();
    //if ( !gdir ) {
    gdir = new GDirections(map, rte);
    GEvent.addListener(gdir, "load", onGDirectionsLoad);
    GEvent.addListener(gdir, "error", handleErrors);
    //}
    gdir.load("from: " + fromAddress + " to: " + toAddress, { "locale": locale });
    rte.style.display = 'block';
}

function handleErrors(){
      var rte = document.getElementById("route");
      if ( rte ){ rte.style.display = 'none';}
      
      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...
}     

//]]>-->
