// Credits: A List apart - Suckerfish Dropdowns
         // http://www.alistapart.com/articles/dropdowns
         startList = function()
          {
           if (document.all&&document.getElementById)
            {
             navRoot = document.getElementById("nav");
             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;