function ct(obj) {
    obj.target = '_blank';
  }
  
  List = 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+=" hover";
          }
          node.onmouseout=function()
          {
            this.className="";
          }
        }
      }
    }
  }
  window.onload=List;