function emailWindow(agent, listing_id) {

  if (listing_id)
    listing_id = '&listing_id=' + escape(listing_id);
  else
    listing_id = '';

  url = '/email/?to=' + escape(agent) + listing_id + '&pop=1';
  w = window.open(url, 'email_window', 'width=500,height=550,menubar=1,statusbar=1,scrollbars=1');

  return !w;
}

function feedpop(yesno, cid) {

  if (yesno == 'yes')
    url = '/yes/';
  else
    url = '/no/';

  url = url + '?page=' + cid + '&pop=1';

  w = window.open(url, 'feedpop', 'width=560,height=390,menubar=1,statusbar=1,scrollbars=1');

  return !w;

}