function menus_init() { 
    if (document.all && document.getElementById) { 
        menuList = document.getElementsByTagName("UL"); 
        if (menuList.length > 0) { 
            for (x=0; x<menuList.length; x++) { 
                menuRoot = menuList[x]; 
                for (i=0; i<menuRoot.childNodes.length; i++) { 
                    menuNode = menuRoot.childNodes[i]; 
                    if (menuNode.nodeName == "LI") { 
                        if (menuNode.className == "dropdown") { 
                            menuNode.onmouseover = function() { 
                                this.className += " over"; 
                            } 
                            menuNode.onmouseout = function() { 
                                this.className = this.className.replace(" over", ""); 
                            } 
                        } 
                    } 
                } 
            } 
        } 
    } 
} 
addEvent(window, "load", menus_init); 

function addEvent(obj, evType, fn) { 
    if (obj.addEventListener) { 
        obj.addEventListener(evType, fn, true); 
        return true; 
    } else if (obj.attachEvent) { 
        var r = obj.attachEvent("on"+evType, fn); 
        return r; 
    } else { 
        return false; 
    } 
}