function selecturlb(s)
{
   var newurl = "../" + s.options[s.selectedIndex].value + "/banner.html";

   if (s.options[s.selectedIndex].value == "xx")
   { newurl = "../00/banner.html";}

   if (s.options[s.selectedIndex].value != 0)
   { window.top.whead.location.href=newurl; }
}