function prepare_menu(){
	var i = 1;
	var oElem = getelem("m1");
	
	while(oElem != null){
		if(getelem("l"+i) != null){
			oElem.setAttribute("menu_id",i);
			oElem.setAttribute("largeur",oElem.offsetWidth);
			oElem.setAttribute("hauteur",oElem.offsetHeight);
			oElem.setAttribute("largeur",oElem.offsetLeft);
			
			oElem.onmousemove = function(i){
				if(this.style.position != "relative"){
					this.className = "menu_element_survol";
					this.style.position = "relative";
					this.style.left = this.offsetLeft-1;
					getelem("l"+this.getAttribute("menu_id")).style.color = "#FFFFFF";
				 }
			 }
			oElem.onmouseout = function(i){
				this.className = "menu_element";
				this.style.position = "static";
				this.style.left = this.getAttribute("largeur");
				getelem("l"+this.getAttribute("menu_id")).style.color = "#000000";
			 }
		 }
		i++;
		oElem = getelem("m"+i);
	 }
 }