Cultivate Web Design Melbourne – Development Blog

While iframes are not good to use normaly, I use it to mix different server side languages. (eg: pulling through perl/ASP scripts to display on a php page). Please only use this for non indexed (admin/managemt/report) pages because iframes are no good for SEO.

Javascript for the parent page,

//this uses mootools. This code should be placed inside domready or load event of the window
$('my-iframe').addEvent('load',function()
{	innerDoc = ($('my-iframe').contentDocument) ? $('my-iframe').contentDocument : $('my-iframe').contentWindow.document;
	objToResize = ($('my-iframe').style) ? $('my-iframe').style : $('my-iframe');
	objToResize.height = (innerDoc.body.scrollHeight + 50) + 'px';
	objToResize.width = (innerDoc.body.scrollWidth + 20) + 'px';
	window.scrollTo(0, 0);//optional code to scroll the parent window back to top
});

And the iframe should look like this,

<iframe id="my-iframe" src="my_page_to_iframe.php" frameborder="0" scrolling="auto" ></iframe>

Thats it! If the sites are on two domains, take a look at this post to get around that.