function menuOver(obj)
{
	var fileName = obj.src;
	obj.src = fileName.substring(0,fileName.length-4) + "-mo" + fileName.substring(fileName.length-4,fileName.length);
}

function menuOut(obj)
{
	var fileName = obj.src;
	obj.src = fileName.substring(0,fileName.length-7) + fileName.substring(fileName.length-4,fileName.length);
}