var map;
var myPostcode = 'TW59EU';
var localSearch = new GlocalSearch();

var winInfo =''

var marker = null;
var myPano = null;

var icon = new GIcon();
icon.image = "http://www.google.com/mapfiles/marker.png";
icon.shadow = "http://www.google.com/mapfiles/shadow50.png";
icon.iconSize = new GSize(20, 34);
icon.shadowSize = new GSize(37, 34);
icon.iconAnchor = new GPoint(10, 34);

function usePointFromPostcode(postcode, callbackFunction) {
	
	localSearch.setSearchCompleteCallback(null, 
		function() {
			
			if (localSearch.results[0])
			{		
				var resultLat = localSearch.results[0].lat;
				var resultLng = localSearch.results[0].lng;
				var point = new GLatLng(resultLat,resultLng);
				callbackFunction(point);
			}else{
				alert("Postcode not found!");
			}
		});	
		
	localSearch.execute(postcode + ", UK");
}

function placeMarkerAtPoint(point)
{
	var marker = new GMarker(point,icon);
	map.addOverlay(marker);
}

function setCenterToPoint(point)
{
	map.setCenter(point, 17);
}

function showPointLatLng(point)
{
	alert("Latitude: " + point.lat() + "\nLongitude: " + point.lng());
}

function mapLoad() {
	if (GBrowserIsCompatible()) {
		map = new GMap2(document.getElementById("map"));
		
		
	    map.addControl(new GLargeMapControl());
	    map.addControl(new GMapTypeControl());
	    //usePointFromPostcode(myPostcode, setCenterToPoint);
	    usePointFromPostcode(myPostcode, setupMapandMarker);

	}
}

function setupMapandMarker(point)
{
	map.setCenter(point, 15);

	var marker = new GMarker(point,icon);
	map.addOverlay(marker);


    //[RK] 21/05/09. Google Street View
	var latlang = map.getCenter();
	var icon = new GIcon();

	//alert(latlang);

	var streetOverlay = new GStreetviewOverlay();
	
    var imageUrl = "http://maps.google.com/intl/en_us/mapfiles/cb/man_arrow-0.png";
    icon.image = imageUrl;
    icon.iconSize = new GSize(49, 52);
    icon.iconAnchor = new GPoint(25, 36);
    icon.infoWindowAnchor = new GPoint(25, 6);
    marker = new GMarker(latlang, { "icon": icon, "draggable": true });
    //map.addOverlay(marker);   //HIDE the marker as we dont need it really.

    //add the streetview image
    myPano = new GStreetviewPanorama(document.getElementById("stview"));
    var latlang = marker.getLatLng();
    myPano.setLocationAndPOV(latlang);

    //add the info pop up window if required.
    if (winInfo !== '') {
        map.openInfoWindowHtml(map.getCenter(), winInfo);
    }

    //additional events if we decide to have a draggable icon.
//    GEvent.addListener(marker, "dragstart", function() {
//        map.addOverlay(streetOverlay);

//        //myPano = new GStreetviewPanorama(document.getElementById("stview"));
//        //var latlang = marker.getLatLng();
//        //myPano.setLocationAndPOV(latlang);
//    }
//    );

//    GEvent.addListener(marker, "dragend", function(overlay, latlang) {
//        map.removeOverlay(streetOverlay);
//        //openWindow();

//        myPano = new GStreetviewPanorama(document.getElementById("stview"));
//        var latlang = marker.getLatLng();
//        myPano.setLocationAndPOV(latlang);
//    }
//    );


}

function addLoadEvent(func) {
  var oldonload = window.onload;
  if (typeof window.onload != 'function') {
    window.onload = func;
  } else {
    window.onload = function() {
      oldonload();
      func();
    }
  }
}

function addUnLoadEvent(func) {
	var oldonunload = window.onunload;
	if (typeof window.onunload != 'function') {
	  window.onunload = func;
	} else {
	  window.onunload = function() {
	    oldonunload();
	    func();
	  }
	}
}

    function gup( name )
    { 
    name = name.replace(/[\[]/,"\\\[").replace(/[\]]/,"\\\]");  
    var regexS = "[\\?&]"+name+"=([^&#]*)";  
    var regex = new RegExp( regexS );  
    var results = regex.exec( window.location.href );
    if( results == null )    
        return "";  
    else    
        return results[1];
    }

//**these are called from the page which shows the map
//addLoadEvent(mapLoad);
//addUnLoadEvent(GUnload);