lastid = 'none';
		lastover = 0;

	getLeft = function(element) {
		var cursor;
		var baseLeft = 0;
		for (cursor=element;cursor.offsetParent;cursor = cursor.offsetParent) {
			baseLeft += cursor.offsetLeft;
		}
		return baseLeft;
	}


function showmenu(id) {
			if (document.getElementById('menu'+id)!=null) {
				/* changer la couleur du menu */
				if (lastover!=0) {lastover.style.color="";lastover.style.fontWeight="";}
				rub = document.getElementById('r'+id);
				lastover = rub;
				rub.style.color="#D03807";
				rub.style.fontWeight="bold";
				/* /changer la couleur du menu */
				
				/* trouver le position de la rubrique */
					left = getLeft(rub);
				
				/* hide last menu */
				if (lastid!='none') {
					lastul = document.getElementById('menu'+lastid);
					lastul.style.display = 'none';
				}
				/* show current menu */
				//decalage=440;
				ul = document.getElementById('menu'+id);
				ul.style.display = 'block';
				//ul.style.left=(left-decalage)+'px';
				lastid = id;
			}
		}