Cross Iframe Scripting

[ednark]

I'm playing around with a windowing system, my page dynamically creates iframes.

Right now I have to pull each iframes ID from the main page. On iframe page load, the iframe calls top.blah() which loops through all iframes and finds the one making the call and then pulls out its Id. This seems wrong to me.

Is there a way I can have the Main page "push" into the newly created iframes an ID of some sort. Not just on the iframe tag but into the Document in a form JS can use.

Another way to frame the question: what is the best way to share variables between parent page and Iframe if any.

[Weedpacket]

I think perhaps if you just had the iframe pass itself as an argument ("top.blah(this)") when it loads you'll have something like what you're after.

[ednark]

I was trying to avoid the Iframe making any calls to top.whatIsMyId(), I was wondering if the top could somehow push into the iframe some myId, and then the iframe could make future calls to top.something(myId). In essence I would like to put all the responsibility onto Top for giving the ID and none on the Iframe for finding it.

The most I can think of doing is having php itself plop in an id during the page render, but that would require it being saved between iframe page loads and I would prefer not to have to worry about that.