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 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 getCookie(name)
{
	var arg = name + "=";
	var alen = arg.length;
	var clen = document.cookie.length;
	var i = 0;
	while (i < clen) {
		var j = i + alen;
		if (document.cookie.substring(i, j) == arg) {
		  return getCookieVal (j);
  		}
		i = document.cookie.indexOf(" ", i) + 1;
		if (i == 0)
			break; 
		}
	return null;
}

function sortByDistance(a, b)
{
	return ((a[3] < b[3]) ? -1 : ((a[3] > b[3]) ? 1 : 0));
}

function ucwords(strObj) {
	return (strObj.charAt(0).toUpperCase()+strObj.substr(1).toLowerCase());
}

function roundNumber(num, dec) {
	return Math.round( Math.round( num * Math.pow( 10, dec + 1 ) ) / Math.pow( 10, 1 ) ) / Math.pow(10,dec);
}

function findNearest(point)
{	
	for(i=0; i<11; i++){
		var point2 = new GLatLng(venues[i][1],venues[i][2]);
		venues[i][3] = point.distanceFrom(point2)/1000*0.621371192;
	}
	venues.sort(sortByDistance);
	for(i=0; i<11; i++){
		document.getElementById('results').innerHTML += "<h2><a href=\"/"+venues[i][0]+"/\">"+ucwords(venues[i][0])+"</a><span> - "+roundNumber(venues[i][3],0)+" miles</span></h2>";
	}
}

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

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

function showPointLatLng(point)
{
	alert(point.lat() + "," + point.lng());
}

function mapLoad() {
	if (GBrowserIsCompatible()) {
		map = new GMap2(document.getElementById("map"));
		map.addControl(new GLargeMapControl());
		map.setCenter(new GLatLng(54.622978,-2.592773), 5);
	}
}

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);