Iframe height adjustment on page load

function getDocHeight(doc) {  doc = doc || document;  var body = doc.body, html = doc.documentElement;  var height = Math.max( body.scrollHeight, body.offsetHeight,      html.clientHeight, html.scrollHeight, html.offsetHeight );  return height;}
function setIframeHeight(id) {  var ifrm = document.getElementById(id);  var doc = ifrm.contentDocument? ifrm.contentDocument:    ifrm.contentWindow.document;  ifrm.style.visibility = 'hidden';  ifrm.style.height = "10px"; // reset to minimal height ...  // IE opt. for bing/msn needs a bit added or scrollbar appears  ifrm.style.height = getDocHeight( doc ) + 4 + "px";  ifrm.style.visibility = 'visible';}