Well first you can find elements using their id :
$('#frameid')
Then access the content of an iframe :
$('#frameid').contents()
Then maybe access functions they own :
$('#frameid').contents().myFunc();
Though I don't know much about your "myFunc()" and how you attached it to
the iframe, this should do the trick like your previous code.
Plus there's this nifty new web app that may help you with questions like
this :
http://lmgtfy.com/?q=jquery+iframe
Check the first result...
Michel Belleville
2009/11/3 Mike
> Is there a way to implement this JavaScript commmand through JQuery?
>
> document.getElementById('iframeid').contentWindow.myFunc();
>
>
> Thanks!
>