function rssAltRows() {
    dts = document.getElementsByTagName("dt");
    dds = document.getElementsByTagName("dd");
    for(var i=0;i<dts.length;i++) {
        if(i%2==1) {
            dts[i].style.backgroundColor = "#F7F7F7";
            dds[i].style.backgroundColor = "#F7F7F7";
        }
    }
}

window.onload = rssAltRows;