function openDialogBox()
{
  $('#dialog').dialog({
    autoOpen: true, 
    bgiframe: true, 
    title:'', 
    width: 600,
	height: 170,
    modal: true 
  });
}

function closeDialogBox(o)
{
  createCookie("dialog_box_shown", "1", 1);
  $(o).dialog('close');
}