function __formIsSending()
{
  return false;
}

function __formDisMultipleClick(formObj)
{
  for (var i=0; i<formObj.length; i++ )
  {
    if (formObj.elements[i].type == 'submit' || formObj.elements[i].type == 'image')
    {
      formObj.elements[i].onclick = __formIsSending;
    }
  }
}