function validate_go() {
   var web_id = document.forms["show_form"].elements["en"].value;
   if (web_id == "") {
      alert("Please enter a 'Web Page ID' before clicking 'Go'.");
      return false;
   } 
   else {
      return true;
   }
}

function focus_form() {
   if(document.forms[0]) {
      var elements = document.forms[0].elements;
      for(i = 0; i < elements.length; i++) {
         if(elements[i].type != 'hidden' && elements[i].type != undefined) {
            elements[i].focus();
            break;
         }
      }
   }
}