function Validate_Login()
{
                        
  //This function validates the form data
  var ErrorMessage = "";
  var EmailEntered = "";
  var HasAt = 0;
  var HasPeriod = 0;

  // Validate e-mail entered
  EmailEntered = document.frmLogin.email.value;
  if (!EmailEntered)
  {
  	ErrorMessage = ErrorMessage + "No e-mail address provided.\n";
  }
  else
  {
  	EmailValue = new String (EmailEntered);
  	HasAt = EmailValue.indexOf("@");
  	HasPeriod = EmailValue.indexOf(".");
  	if ((HasAt == -1) || (HasPeriod == -1))
  	{
  		ErrorMessage = ErrorMessage + "Your e-mail address is not valid.\n";
  	}
  }
                      	
  //Alert user if errors found, otherwise submit the form
  if (ErrorMessage)
  {
    //Show error list
    ErrorMessage = ErrorMessage + '\nPlease check your details and try again.';
                                			
    alert (ErrorMessage);
    document.frmLogin.email.focus();
    return (false);
  }
  else
  {
    //Submit the form
    return (true);
  }
}