function checkForm(thisform)
  {
    
    if(thisform.Email.value=='')
    {
      alert("Please enter the email id.");
      form.Email.focus( );
      return false;
    }
    if(thisform.cardnum.value=='')
    {
      alert("Please enter the Card Number.");
      form.cardnum.focus( );
      return false;
    }
    //if all is OK submit the form

    thisform.submit();
  }