var arr = new Object;
	var style = new Object;

	function MGOver(obj){
		arr[obj]=true;
		var upper = document.getElementById("submnu"+(obj-1));
		var lower = document.getElementById("submnu"+(obj+1));
		if (document.getElementById("submnu"+obj)!=null)
			document.getElementById("submnu"+obj).style.display="block";
		if (upper!=null) upper.style.display="none";
		if (lower!=null) lower.style.display="none";

	}

	function MGTimeOut(obj){
		if (!arr[obj]) {
			if (document.getElementById("submnu"+obj)!=null)
				document.getElementById("submnu"+obj).style.display="none";
		}
	}

	function MGOut(obj){
		arr[obj]=false;
		setTimeout("MGTimeOut(\""+obj+"\")",20);
	}