function switchClass(elementId, newClass) 
{
	if (document.getElementById(elementId)) 
	{
		var realElementId = document.getElementById(elementId);
		realElementId.className = newClass;
	}
}

function mapPop(url)
{
	window.open(url, 'mapPop', 'width=400,  height=300, directories=no, location=no,  menubar=no, resizable=no, scrollbars=0, status=no, toolbar=no'); 
	return false;
}