var objFont = {
  src: '/images/fontheader.swf'
};

sIFR.prefetch(objFont);
sIFR.activate(objFont); // From revision 209 and onwards

sIFR.replace(objFont, {
  selector: 'h1'
  ,css: [
      '.sIFR-root {color: #4D84BA;background:transparent;font-size:19px;}'
    ]
  ,wmode: 'transparent'
  ,offsetTop: '2'
});