function autoHeight(theIframe)
    {
    var theDocument = theIframe.contentWindow.document;
    var theHeight = theDocument.getElementsByTagName('body')[0].scrollHeight;
     
    theIframe.scrolling = 'no';
    theIframe.style.overflow = 'hidden';
    theIframe.frameBorder = 0;
    theIframe.height = theHeight;
    }