41953 - form element can't be referenced as array element

Status: VERIFIED FIXED

(Core :: DOM: Core & HTML, defect, P3)

Description

[sean echevarria]

The use of the following expression does not work anymore in mozilla.  It 
stopped working during this week:

document ['listboxNavForm']['listboxNav_previous'];


Example context:

<form name="listboxNavForm">
    <a href="javascript://" onmouseover="arrowOver(-1); return true">
    <img src="arrow.gif" name="listboxNav_previous" width=22 height=19 hspace=5 
alt="previous" border=0 hspace=0 vspace=5></a>
</form>

<script language=javascript>
function arrowOver (_direction)
{
	var _arrowStr = (_direction == -1) ? 'previous' : 'next';
	alert(document ['listboxNavForm']);   // ok
	alert(document ['listboxNavForm']['listboxNav_' + _arrowStr]); // bad
	alert(document ['listboxNavForm']['listboxNav_' + 'previous']); // bad
	alert(document ['listboxNavForm']['listboxNav_previous']); // bad
}
</script>

Comment 1

[sean echevarria]

Attachment: testcase - 4 alerts, 3 no good in mozilla

Comment 2

[sean echevarria]

added 4xp and testcase keywords

Comment 3

[sean echevarria]

nominating nsbeta2.
Experienced this with a build after pulling from the tip 6/7 around noon.

Comment 4

[leger]

We think may be a DOM, not javascript problem...reassignnig to jst to check out. 
 Johnny...what do ya think?

Comment 5

[Johnny Stenback (:jst)]

Mine mine mine, I broke it, I'll fix it.

Comment 6

[leger]

Putting on [nsbeta2+] radar for beta2 fix.  Fix away my friend!

Comment 7

[Johnny Stenback (:jst)]

I have a fix for this in my tree but I'll do some more testing before checking
in...

Comment 8

[Johnny Stenback (:jst)]

I just checked in the fix for this, marking FIXED.

Comment 9

[sean echevarria]

verify fixed - thanks!