[xwiki-users] Hidden input after select, radio or checkbox, why ?

Hi all, Does anyone here knows why displayEdit of ListClass fields with a display type of checkbox, radiobutton or select is always followed with a hidden input tag, having the same name than the visible control ? Here is an excerpt of the source code that cause this : if (!getDisplayType().equals("input")) { org.apache.ecs.xhtml.input hidden = new input(input.hidden, prefix + name, ""); buffer.append(hidden); } I really wonder what is the need for that, and if I can remove it, since this seems to break some screen readers, that makes confusion between listbox and combobox due to this hidden field. Thanks in advance for any advices. Denis -- Denis Gervalle SOFTEC sa http://www.softec.st