var allErrorElements = new Array(
'error_userid', 'error_email', 'error_email_format', 'error_email_invalid_chars','error_unknown'
);
function validateForm(){
   
   var frm = document.forms[0];
   var errorCounter = 0;
   var errElements = new Array();
   
   var firstErrorComponent = null;
   
   var firstName = frm['user.userID'].value;
   if (firstName == '') {
      errElements[errorCounter] = 'error_userid';
      errorCounter = errorCounter + 1;
      if (firstErrorComponent == null ) firstErrorComponent = frm['user.userID'];
   }

   var email = frm['user.email'].value;
   if (email == '') {
      errElements[errorCounter] = 'error_email';
      errorCounter = errorCounter + 1;
      if (firstErrorComponent == null ) firstErrorComponent = frm['user.email'];
   }
   else {
      if (!validateEmailFormat(email)) {
         errElements[errorCounter] = 'error_email_format';
         errorCounter = errorCounter + 1;
         if (firstErrorComponent == null ) firstErrorComponent = frm['user.email'];
      }
      else if (!validateEmailChars(email)) {
          errElements[errorCounter] = 'error_email_invalid_chars';
          errorCounter = errorCounter + 1;
          if (firstErrorComponent == null ) firstErrorComponent = frm['user.email'];
       }
   }
   if (errorCounter > 0) 
   {
       //alert('Before displaying errors');
       displayErrors(errElements);
       if (firstErrorComponent != null ) {
       		firstErrorComponent.focus();
       		firstErrorComponent.value =  firstErrorComponent.value;
       }
       return false;
   } else {
   	return true;
   }
   
}