var poppl = {
      src: 'fonts/poppl.swf'
      };

    // You probably want to switch this on, but read <http://wiki.novemberborn.net/sifr3/DetectingCSSLoad> first.
    // sIFR.useStyleCheck = true;
    sIFR.activate(poppl);
    sIFR.replace(poppl, {
				 selector: 'h1, h2,h3, h4'
				 ,wmode: 'transparent'});