// Replaces the content for a single element
// There was an issue with the defer_ads.js function call where
// if the content html contained an iframe which was resized by it's own content
// this size was cached by the browser (using the defer_ads.js code) and then
// on subsequent page loads the size was often wrong for the content of the frame.
function swapContent(elName, html){
    var d = document;
    if (!d.getElementById) return;
    
    var el = d.getElementById(elName);
    if (!el) return;
    
    el.innerHTML = html;
}