function open_ss_mnu(obj) {
	if (obj.getElementsByTagName("ul")[0]) {	
		var height = obj.offsetHeight;
		obj.getElementsByTagName("ul")[0].style.marginTop = "-"+height+"px";
		obj.getElementsByTagName("ul")[0].style.display = "block";
		}
	}
function close_ss_mnu(obj) {
	if (obj.getElementsByTagName("ul")[0]) {	
		obj.getElementsByTagName("ul")[0].style.display = "none";
		}
	}