// JavaScript Document
function checkform(form) {
   f = form;

   for(var i=0;i<f.elements.length;i++){
       t = f.elements[i].value;

  if(f.elements[i].name=="code") continue
        if(t == null || t.length == 0 ){
               var et = f.elements[i].getAttribute("errortext");
               if(et!=null)
      {
        alert(et);
                 f.elements[i].focus();
                 return false;
      }
        
    }
    continue
   }
  
  return true;
}