var AvenirLight = { src : RootUrl + "Scripts/sifr/avenir-35-Light.swf" };

sIFR.activate(AvenirLight);
sIFR.replace(AvenirLight, { selector: 'h1', wmode : 'transparent', css : ['.sIFR-root { font-size:24px; font-weight:normal; color:#AA1111; }'] });
sIFR.replace(AvenirLight, { selector: 'h2', wmode : 'transparent', css : ['.sIFR-root { font-size:18px; text-transform:uppercase; font-weight:normal; color:#a09c83; }'] });