function switchMenu (el_id, show) {
			if (show==1) {
				document.getElementById(el_id).style.left='auto';
				//document.getElementById("id").style.property="value"
			}
			else {
				menu_id=el_id;
				var change=setTimeout("",75);
				document.getElementById(menu_id).style.left= '-9999px'
				//clearTimeout(change);
			}
		}