<!--

function check_empty(textValue) {
   var len = textValue.length;
   if (len == 0)
      return "cannot be left blank";
   return "";
}
function check() {
   var thisForm = document.EmailForm;
   alertStr = check_empty(thisForm.About.value);
   if (alertStr != "") {
      alert( "You must choose what this email is about" );
      return false;
   }
   alertStr = check_empty(thisForm.UserEmail.value);
   if (alertStr != "") {
      alert( "Your E-mail " + alertStr );
      return false;
   }
   alertStr = check_empty(thisForm.Subject.value);
   if (alertStr != "") {
      alert( "Subject " + alertStr );
      return false;
   }
   alertStr = check_empty(thisForm.Comment.value);
   if (alertStr != "") {
      alert( "Comment " + alertStr );
      return false;
   }
   return true;
}

//-->