var menus = [ new ypSlideOutMenu("menu1", "down", 67, 125, 186, 148), new ypSlideOutMenu("menu2", "down", 568, 125, 90, 43), ] for (var i = 0; i < menus.length; i++) { menus[i].onactivate = new Function("document.getElementById('act" + i + "').className='active';"); menus[i].ondeactivate = new Function("document.getElementById('act" + i + "').className='';"); }