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Changing parent window's URL from IFRAME content

If you want to control parent window's URL from a child iframe, you can't use variable destination how you would use that for frames because tag <iframe> doesn't have this property.

Also you can't change parent.document.location variable because this variable is read-only for child iframes.

To solve this problem, you need to define a javascript function at parent window and call it from iframe window. Here's an example how to change parent window's URL:


Parent window's content:

    <b>iframe starts here</b><br><br>
    <iframe src='iframe1.html'></iframe>
    
    <br><br>
    <b>iframe ends here</b>
	
    <script type="text/javascript">
        function change_parent_url(url)
        {
	    document.location=url;
        }		
    </script>
Iframe's content:

    IFRAME content<br><br>

     <a href="javascript:parent.change_parent_url('http://yahoo.com');"> 
	Click here to change parent URL </a>

So you can see that child iframe calls parent's function and gives URL to go to.
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