var mArray = Array();
var markers =[];
var map;
var centerPoint = new GLatLng(1.358058, 103.819427);
var geocoder = null;
var gdir;
var addressMarker;
var markerID;

var manualMarker=false;

var iconStart=new GIcon();
iconStart.image = "http://maps.google.com/mapfiles/dd-start.png";
iconStart.shadow = "http://maps.google.com/mapfiles/shadow50.png";
iconStart.iconSize = new GSize(20, 34);
iconStart.shadowSize = new GSize(37, 34);
iconStart.iconAnchor = new GPoint(10, 34);
iconStart.infoWindowAnchor = new GPoint(9, 1);

var iconEnd=new GIcon();
iconEnd.image = "http://maps.google.com/mapfiles/dd-end.png";
iconEnd.shadow = "http://maps.google.com/mapfiles/shadow50.png";
iconEnd.iconSize = new GSize(20, 34);
iconEnd.shadowSize = new GSize(37, 34);
iconEnd.iconAnchor = new GPoint(10, 34);
iconEnd.infoWindowAnchor = new GPoint(9, 1);

var iconStartInfo;
var iconEndInfo;


function load3(start_lat,start_lon,end_lat,end_lon) {
	if (GBrowserIsCompatible()) {
        map = new GMap2(document.getElementById("map"));
	GEvent.addListener(map, 'click', markerClick);
        map.setCenter(centerPoint, 11);
        map.addControl(new GLargeMapControl());
        map.addControl(new GMapTypeControl());
        map.addControl(new GScaleControl());
        map.addControl(new GOverviewMapControl());
        map.setCenter(new GLatLng(1.358058, 103.819427), 11);
        geocoder = new GClientGeocoder();


	}

        markers[0]=new GMarker(new GLatLng(start_lat,start_lon),{icon: iconStart, draggable: true,title:"Start"});
        markers[1]=new GMarker(new GLatLng(end_lat,end_lon),{icon: iconEnd, draggable: true,title:"End"});	
	map.addOverlay(markers[0]);	
	map.addOverlay(markers[1]);	

	GEvent.addListener(markers[0], "dragstart", function() {  map.closeInfoWindow();  });	
	GEvent.addListener(markers[1], "dragstart", function() {  map.closeInfoWindow();  });	

}

function load2(start_lat,start_lon,end_lat,end_lon) {
	if (GBrowserIsCompatible()) {
        map = new GMap2(document.getElementById("map"));
	//driving directions
        gdir = new GDirections(map, document.getElementById("directions"));
        GEvent.addListener(gdir, "load", onGDirectionsLoad);
        GEvent.addListener(gdir, "error", handleErrors);
        map.setCenter(centerPoint, 11);
        map.addControl(new GLargeMapControl());
        map.addControl(new GMapTypeControl());
        map.addControl(new GScaleControl());
        map.addControl(new GOverviewMapControl());
        map.setCenter(new GLatLng(1.358058, 103.819427), 11);
        geocoder = new GClientGeocoder();
        //GEvent.addListener(map, 'click', mapClick);
        //GEvent.addListener(map, 'click', drawMarker);
        //GEvent.addListener(map, 'click', markerClick);
        //GEvent.addListener(map, "dragstart",mark1lister);
        //GEvent.addListener(map, "dragend",mark1lister);

	}
markerID=0;
/*
	mArray.push(start_lat);
	mArray.push(start_lon);
	mArray.push('start');
	mArray.push(end_lat);
	mArray.push(end_lon);
	mArray.push('end');
	addMarkers();
*/

map.addOverlay(new GMarker(new GLatLng(start_lat,start_lon)
,{icon: iconStart, title:"Start"}));

map.addOverlay(new GMarker(new GLatLng(end_lat,end_lon)
,{icon: iconEnd, title:"End"}));

	//mArray.push(start_lat,start_lon,'Start');
	//mArray.push(1.36490070,103.76910925,'End');
	//addMarkers();
}

function load() {
	doLoad();
	//mArray.push('1.32150376;103.91306877;Start')
	//mArray.push('1.36490070;103.76910925;End')
	//addMarkers();
markerID=0;
}

function doLoad() {
	if (GBrowserIsCompatible()) {
        map = new GMap2(document.getElementById("map"));
        map.setCenter(centerPoint, 11);
        map.addControl(new GLargeMapControl());
        map.addControl(new GMapTypeControl());
        map.addControl(new GScaleControl());
        map.addControl(new GOverviewMapControl());
        map.setCenter(new GLatLng(1.358058, 103.819427), 11);
        geocoder = new GClientGeocoder();
        //GEvent.addListener(map, 'click', mapClick);
        //GEvent.addListener(map, 'click', drawMarker);
        GEvent.addListener(map, 'click', markerClick);

        //GEvent.addListener(map, "dragstart",mark1lister);
        //GEvent.addListener(map, "dragend",mark1lister);

	}
}

function setMarkerMode(status){
manualMarker=status;
}

function clearAllMarkers(){
    map.clearOverlays();
    markerID=0;
}

function markerClick(marker,point){
    if(marker){
    	//x=marker.getTitle();
    	if(marker.getTitle()=="Start"){
    	    marker.openInfoWindowHtml(iconStartInfo+ "<br>"+marker.getPoint().lat() + "<br>"+marker.getPoint().lng());
        }
        else{
            marker.openInfoWindowHtml(iconEndInfo+ "<br>"+marker.getPoint().lat() + "<br>"+marker.getPoint().lng());
        }
    }
    else if(!marker){
        if(manualMarker&&markerID<=1){
            //markerID=markerType;
            drawMarker(point,'manual test');
            //setMarkerMode(0,false);

        }
    }   
}

/*
function drawMarker(marker,point){
    var x;
    if(marker){
    	//x=marker.getTitle();
    	if(marker.getTitle()=="Start"){
    	    marker.openInfoWindowHtml(infoStartInfo+ "<br>"+marker.getPoint().lat() + "<br>"+marker.getPoint().lng());
        }
        else{
            marker.openInfoWindowHtml(infoEndInfo+ "<br>"+marker.getPoint().lat() + "<br>"+marker.getPoint().lng());
        }
    }
    if(!marker){
        if(markerID%2==0){
            markers[markerID]=new GMarker(point,{icon: iconStart, draggable: true,title:"Start"});
        }
        else{
            markers[markerID]=new GMarker(point,{icon: iconEnd, draggable: true,title:"End"});
        }
        map.addOverlay(markers[markerID]);
        GEvent.addListener(markers[markerID], "dragstart", function() {  map.closeInfoWindow();  });
        markerID++;
    }
}*/


function drawMarker(point,info){

    if(markerID%2==0){
        markers[markerID]=new GMarker(point,{icon: iconStart, draggable: true,title:"Start"});
        iconStartInfo=info;
 
    }
    else{
        markers[markerID]=new GMarker(point,{icon: iconEnd, draggable: true,title:"End"});
        iconEndInfo=info;
  
    }
    map.addOverlay(markers[markerID]);
    /*GEvent.addListener(markers[markerID], "click", function() {
                markers[i].openInfoWindowHtml("Marker #<b>" +markers[i].getPoint().lat() + "</b><br>"+markers[i].getPoint().lng());
              });
    */
    GEvent.addListener(markers[markerID], "dragstart", function() {  map.closeInfoWindow();  });
    markerID++;

}
/*
function addMarkers() {
	if (mArray.length) {
		var bounds = new GLatLngBounds();
		for (n=0 ; n < mArray.length ; n++ ) {
			var mData = mArray[n].split(';');
			var point = new GLatLng(mData[0],mData[1]);
			bounds.extend(point);
			var marker = createMarker(point, mData[2]);
			map.addOverlay(marker);
		}
		map.setCenter(bounds.getCenter(), map.getBoundsZoomLevel(bounds)); 
	}
}

function addMarkers2(marker,point) {
	if (mArray.length) {
		var bounds = new GLatLngBounds();
		for (n=0 ; n < mArray.length ; n++ ) {
			var mData = mArray[n].split(';');
			bounds.extend(point);
			marker = createMarker(point,{draggable: true});          GEvent.addListener(marker, "click", function() {
            marker.openInfoWindowHtml("Marker #<b>" +marker.getPoint().lat() + "</b><br>"+marker.getPoint().lng());
          });
			map.addOverlay(marker);
		}
		map.setCenter(bounds.getCenter(), map.getBoundsZoomLevel(bounds)); 
	}
}*/
function createMarker(point, title) {
	var marker = new GMarker(point,{title:title});
	GEvent.addListener(marker, "click", function() {
		marker.openInfoWindowHtml('<div style="width:250px;">' + title + '<br>Lat: ' + point.y + '<br>Lon: ' + point.x + '</div>');
	});
	return marker;
}

function mapClick(marker, point) {
	if (!marker) {
		oLat = document.getElementById("lat");
		oLat.value = point.y;
		oLon = document.getElementById("lon");
		oLon.value = point.x;
		oDesc = document.getElementById("desc");
		oDesc.value = 'New point';


	}
}

function showAddress(address) {
    if (geocoder) {
        geocoder.setBaseCountryCode("sg");
        geocoder.getLatLng(
          address+" singapore",
          function(point) {
            if (!point) {
              alert(address + " not found");
            } else {
              map.setCenter(point, 13);
              //var marker = new GMarker(point);
              //map.addOverlay(marker);
              //marker.openInfoWindowHtml(address);
              drawMarker(point,address);
            }
          }
        );
    }
}

function autoPlaceMarkers(){

 
    

    map.clearOverlays();

checkStart();

checkEnd();
    
}

function checkEnd(){
       var endloctype;

    for (i = 0; i <document.postads.endlocation_type.length; i++) {
        if (document.postads.endlocation_type[i].checked){
            endloctype = document.postads.endlocation_type[i].value;
        }
    }

    if(endloctype=="end_address"){

        showAddress(document.postads.end_text_address.value);
        //markerID=0;
    }
    else if(endloctype=="end_mrt"){

        var x = document.postads.end_mrt.selectedIndex;
        var selected_text3 = document.postads.end_mrt.options[x].text;
        showAddress(selected_text3);
        //markerID=1;
    }

    else if(endloctype=="end_businterchange"){

        var x = document.postads.end_bus.selectedIndex;
        var selected_text4 = document.postads.end_bus.options[x].text;
        showAddress(selected_text4);
        //markerID=1;
    }

}

function checkStart(){

    var startloctype;
    for (i = 0; i <document.postads.startlocation_type.length; i++) {
        if (document.postads.startlocation_type[i].checked){
            startloctype = document.postads.startlocation_type[i].value;
        }
    }

    if(startloctype=="start_address"){

        showAddress(document.postads.start_text_address.value);
        //markerID=0;
    }

    else if(startloctype=="start_mrt"){

        var x = document.postads.start_mrt.selectedIndex;
        var selected_text1 = document.postads.start_mrt.options[x].text;
        showAddress(selected_text1);
        //markerID=0;
    }
    else if(startloctype=="start_businterchange"){

        var x = document.postads.start_bus.selectedIndex;
        var selected_text2 = document.postads.start_bus.options[x].text;
        showAddress(selected_text2);
        //markerID=0;
    }
}

function setHidden(){

document.postads.start_lat.value=markers[0].getPoint().lat();
document.postads.start_lon.value=markers[0].getPoint().lng();
document.postads.end_lat.value=markers[1].getPoint().lat();
document.postads.end_lon.value=markers[1].getPoint().lng();
}

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

function clearDirections(){
      gdir.clear();

}