// JavaScript Document
startList = function() {

    if (document.all && document.getElementById) 
    {
        navRoot = document.getElementById("nav_ul");
        
        if( navRoot == null )
            return;
            
        for (i=0; i<navRoot.childNodes.length; i++) 
        {
            node = navRoot.childNodes[i];

            if (node.nodeName=="LI") 
            {
                node.onmouseover=function() 
                {
                    this.className+=" over";
                }

                node.onmouseout=function() {
                    this.className=this.className.replace(" over", "");
                }
            }
        
        }
    }

}
window.onload=startList;