function hoverMenu(elementid)
{
	var element = document.getElementById(elementid);
	if (element != null)
		element.className = "menuhover";
		
	return true;			
}
function unhoverMenu(elementid)
{
	var element = document.getElementById(elementid);
	if (element != null)
		element.className = "menu";
	return true;			
}