// auto fix iframe height

function autoAdjustIFrame(iframe) {
   body = iframe.contentWindow.document.body;
   if (body.offsetHeight) {
	   height = Math.max(body.offsetHeight, body.scrollHeight);
	   iframe.style.height = "auto";
	   iframe.style.height = height + 30 + "px";
	} else {
	   iframe.style.height = 30 + "px";
	}
}