var menus = [ new ypSlideOutMenu("menu1", "down", 70, 125, 180, 106), new ypSlideOutMenu("menu2", "down", 600, 125, 120, 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='';"); }