Don't underdstand : what main form ?
The after submit ? There are no form in it ?

More explanation please.

Feedback please ?
What form container ?

It is on every "question" page...i.e. the pages the user sees as they are answering the questions.

If you use the FireFox Wave toolbar, it reports 1 accessibility error. The error is...

Form Label Missing - A form, <input>, <select>, or <textarea> does not have a corresponding label. (Note: Labels are not required for image, submit, reset, button, or hidden form element types.)

I THINK this is what is triggering it:

<input id="runonce" type="text" style="display: none;" value="0"></input>

If it's runonce :
All visible INPUT elements must have a label, either by using a linked or containing LABEL element, or by using the ALT or TITLE attribute. Buttons are considered to be self-labeling.

But what don't take an hidden input here ?
<input id="runonce" type="hidden" style="display: none;" value="0"></input>

PS cynthiasay report show no error with 508.

And with AAA, except for

• font-size:XXpx (need to be % or em) (template dependent)
• Page uses invalid contrast ratios (template dependent)
• No help link found on page

No problem with 'multichoice sith other'

Only thing I can suggest is try installing the WAVE toolbar in Firefox, then start a survey and click on the red button that says "Errors, Features, and Alerts" in the toolbar.

Fix committed to master branch: http://bugs.limesurvey.org/plugin.php?page=Source/view&id=13949

2.0+ Build 140302 released.