Accessing the document object of a frame with JavaScript

Question

I\'m testing on this page, and I\'m not sure what I\'m missing.

// Two frames on the page
> document.getElementsByTagName(\"frame\").length
2

// Same dom         


        

Answer 1

The all-around way to getting a frame's contents is with something like this:

var theFrame = document.getElementsByTagName("frame")[0];
var theFrameDocument = theFrame.contentDocument || theFrame.contentWindow.document;
var button = theFrameDocument.getElementById("mybutton");

However, it is possible to get a 's document by using its name, like:

window.frames["frame_name"].document

if the HTML were:

...