var map;
var localSearch = new GlocalSearch();

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 trim(str, chars) {
    return ltrim(rtrim(str, chars), chars);
}

function ltrim(str, chars) {
    chars = chars || "\\s";
    return str.replace(new RegExp("^[" + chars + "]+", "g"), "");
}

function rtrim(str, chars) {
    chars = chars || "\\s";
    return str.replace(new RegExp("[" + chars + "]+$", "g"), "");
}

function usePointFromPostcode(postcode, callbackFunction) {
    var postcode = trim(postcode);
    if(postcode.length==2)
    {
        postcode=postcode+"1";	
    }
	
	if(postcode.length>2)
    {	
    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{
    }
    });	

		localSearch.execute(postcode + ", UK");
    }
    
}

function placeMarkerAtPoint(point)
{
    var marker = new GMarker(point, icon);
    map.addOverlay(marker);
    map.setCenter(point, 9, G_NORMAL_MAP);
}

function setCenterToPoint(point)
{
	map.setCenter(point, 1);
}

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

function mapLoad() {
	if (GBrowserIsCompatible()) {
		map = new GMap2(document.getElementById("map"));


		map.addControl(new GSmallMapControl());
		map.addControl(new GMapTypeControl());
		map.setCenter(new GLatLng(52.137629, -0.468836), 9, G_NORMAL_MAP);
	}
}

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();
	  }
	}
}

addLoadEvent(mapLoad);
addUnLoadEvent(GUnload);