var map = null;
window.onload = function()
{
	if(GBrowserIsCompatible())
	{
		createMap(52,5,10);
	} 
	else 
	{ 
		alert('Your browser is not compatible with Google Maps!');
	}
};

window.onunload = function ()
{
	if (map != null )
	{
		GUnload();
	}
}


function createMap(lat,lng,zoomLevel)
{
//alert ("Createmap "+lat+" "+lng);
   if (GBrowserIsCompatible()) 
   {
		var map = new GMap2(document.getElementById("map"));
		map.addControl(new GSmallMapControl());
		map.addControl(new GMapTypeControl());
		map.setCenter(new GLatLng(lat, lng), zoomLevel);
		var point = new GLatLng(lat,lng); 
		map.addOverlay(new GMarker(point));
  }
};


function createRequestedMap ()
{
	document.getElementById("map").style.display = "block";
	lv_lat = parseFloat(document.forms[0].lat_ns.value) * (parseFloat(document.forms[0].lat_dd.value ) + parseFloat(document.forms[0].lat_mmmm.value/60));
	lv_lon = parseFloat(document.forms[0].lon_ew.value) * (parseFloat(document.forms[0].lon_dd.value) + parseFloat(document.forms[0].lon_mmmm.value/60));
//		alert (lv_lat+" "+ lv_lon);
	createMap(lv_lat,lv_lon,13);
};