Resize iFrames across domains

iframe-resize-cross-domains.html

<!-- taken from http://blog.johnmckerrell.com/2006/10/22/resizing-iframes-across-domains/ -->

<!--
	My Domain
	the page that includes the iFrame
-->
<script>
	function updateIFrame(height) {
		var iframe = document.getElementById('myiframe');
		iframe.setAttribute('height', height);
	}
</script>


<!--
	My Domain
	iframe-resize.html - the resize helper file
-->
<script>
	function onLoad() {
		var params = window.location.search.substring(1).split('&');
		var height;
		for (var i = 0, l = params.length; i < l; ++i) {
			var parts = params[i].split('=');
			switch(parts[0]) {
				case 'height':
					height = parseInt( parts[1] );
				break;
			}
		}
		if (typeof(height) == 'number') {
			window.top.updateIFrame(height);
		}
	}
	window.onload = onLoad;
</script>


<!--
	Foreign Domain
	the page, that gets loaded into an iframe
-->
<iframe id="resizeHelperIframe" width="1" height="1"></iframe>
<script>
	var iframe = document.getElementById('resizeHelperIframe');
	var height = Math.max(document.body.offsetHeight, document.body.scrollHeight);
	iframe.src = 'http://MyDomain.com/iframe-resize.html?height=' + height;
</script>