FF3 changes how getElementsByTagName works for XML namespaces

[dalangalma]

Check out https://bugzilla.mozilla.org/show_bug.cgi?id=414612. Basically, in FF2, getElementsByTagName for xml elements with a namespace (like "abc:TheTag") would return those elements if you called getElementsByTagName("TheTag"). In FF3, you get nothing for that call - instead you must call getElementsByTagName("abc:TheTag"), like in IE.

Here's how it affects jQuery: http://brh.numbera.com/experiments/browserdemos/firefox-bug-414612-jquery.html

It used to be that you could get the namespaced xml elements by saying $('TheTag', data), but now there's no way at all to get at those namespaced items.

This is related to jQuery issue #155 and #1826