function menuList() {

    for (var j = 1;; j ++){

        var nomes = "menu"+j;

	   var menu = document.getElementById(nomes);
           

           if(menu!=null){

            var navItems = menu.getElementsByTagName("li");
                if (navItems != null){


            for (var i=0; i<navItems.length; i++) {
                if(navItems[i].className == "menu") {
                    navItems[i].onmouseover=function() { this.className += " over"; }
                    navItems[i].onmouseout=function() { this.className = this.className.replace(" over", ""); }
                }
            }

	   }
        }
        else
            break;
    }

}
window.onload = menuList;