/* IE only */
  DD_roundies.addRule('#roundify', '5px');

  /* varying radii, IE only */
  DD_roundies.addRule('#roundify', '5px 4px');

  /* varying radii, "all" browsers */
  DD_roundies.addRule('#roundify', '5px', true);

  DD_roundies.addRule('.roundify', '5px');
  DD_roundies.addRule('.roundify', '5px 4px');
  DD_roundies.addRule('.roundify', '5px', true);