startList = function() 
{
    if (document.all && document.getElementById) 
    {
        cssdropdownRoot = document.getElementById("cssdropdown");
        for (x = 0; x < cssdropdownRoot.childNodes.length; x++) 
        {
            node = cssdropdownRoot.childNodes[x];
            if (node.nodeName == "LI") 
            {
                node.onmouseover = function() 
                {
                    this.className+=" over";
                }
                node.onmouseout = function() 
                {
                    this.className=this.className.replace(" over", "");
                }
            }
        }
    }
}

if (window.attachEvent)
window.attachEvent("onload", startList)
else
window.onload=startList;