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I'm trying to access frame src attribute inside a frameset. But document.getElementById('cntvars').firstChild is null. How do I step into the child elements?
<iframe id="cntvars" onload="prstofrm();" src="http://sites.google.com" style="display:none"></iframe>
<html>
<head></head>
<frameset rows="100%,*" border="0">
<frame src="http://sites.google.com?qty=13.00&sub=7.24&shp=0.00&dis=0.00&vch=0.00&tax=0.00&tot=7.24&sd=" frameborder="0">
<frame frameborder="0" noresize="">
</frameset>
<!-- pageok -->
<!-- 04 -->
<!-- -->
</html>
</iframe>
You can't (unless you're working at Google and writing code for
sites.google.com, which I assume you aren't). The same-origin policy prevents the parent page from "looking at" the contents of frames which are stored on other domains.To access the document element inside the frameset you can use
http://xkr.us/articles/dom/iframe-document/
The most sure fire way to have it work with all browsers is to give a name to your frames and iframes and access it using
window.frames['frameName']which will point to that frame's window object. Also, you can refer to them by index, so if this was all the HTML for the page, you could usewindow.frames[0].frames[1]to access the empty frame inside your frameset