function ShowHide(menuID){
	HideAll();
	document.getElementById(menuID).style.display = "block";
}

function HideAll()
{
	var div = document.getElementsByName("menudiv")
	var length = div.length;
	for (var i = 0; i < length; i++)
	{
		var obj = div.item(i)
		obj.style.display = "none";	
	}
	
}