<iframe src="<?php echo $_['url']; ?>" width="100%" id="ifm" ></iframe> <script language="JavaScript"> <!-- function pageY(elem) { return elem.offsetParent ? (elem.offsetTop + pageY(elem.offsetParent)) : elem.offsetTop; } var buffer = 5; //scroll bar buffer function resizeIframe() { var height = document.documentElement.clientHeight; height -= pageY(document.getElementById('ifm'))+ buffer ; height = (height < 0) ? 0 : height; document.getElementById('ifm').style.height = height + 'px'; } document.getElementById('ifm').onload=resizeIframe; window.onresize = resizeIframe; //--> </script>