layout: collapsible button get focus

[korenanzo]

Hi,
for some reason  the collapsible buttons of my layout are in the tab loop

try: load this,
http://code.reloado.com/ecenuv3/edit#preview

click on first text field then press tab: the focus will be on the collapsible button.

How to avoid this?

thanks

[jarry]

Please try this:
http://code.reloado.com/ecenuv3/2/edit#preview