function iFrameHeight(iFrameElement) { 
    var h = 0; 
    if(!document.all){ 
        h = iFrameElement.contentDocument.height; 
        iFrameElement.style.height = h + 70 + 'px'; 
    } 
    else if( document.all ) { 
        h = iFrameElement.contentWindow.document.body.scrollHeight; 
        iFrameElement.style.height = h + 30 + 'px';
    } 
}