function go(form)
{
 loc=form.index.value;
 var b = document.getElementsByTagName('base');
 if (b && b[0] && b[0].href) {
   if (b[0].href.substr(b[0].href.length-1) == '/' && loc.charAt(0) == '/')
     loc = loc.substr(1);
   loc = b[0].href + loc;
 }
 location.href = loc;
}