Pass values into iframe not using GET

Question

I have an iframe that I was formally creating using a url with some vars that I was passing in as a GET. Is it possible to set the source page and pass in the variables as a POST or something? Or really, if it's possible to somehow get at the variables stored in the parent I'd be fine with that as well.

Answer 1

Use window.parent from within the iframe.

In the parent window:

window.passingObj = { "key" : "value" };

In the iframe:

alert(window.parent.passingObj["key"]); // value

Answer 2

Two helpful posts:

iframe accessing parent DOM? (iframe to parent)

Invoking JavaScript code in an iframe from the parent page (parent to iframe)