Beim ansonsten sehr guten VitaBook Gästebuch funktioniert die "Senden" Taste nicht in Kombination mit dem T3-Framework. Dazu ist folgender Patch notwendig:

http://joomvita.com/forum/11-Support/293-send-button-doesn-t-work

Found the culprit.
Replace document.id with jQuery on line 261 incomponents/com_vitabook/views/vitabook/tmpl/default.php
Then it should work. We'll include this in the next update as well.

line 261 should look like this then:

<button id="vbMessageFormSubmitButton" type="submit" class="btn btn-primary button" onclick="this.disabled = true;jQuery('vbAjaxBusy').show('inline');vitabook.save();return false;">COM_VITABOOK_FORM_SUBMIT</button><span id="vbAjaxBusy"><img src="/Portal/components/com_vitabook/assets/img/spinner.gif" /></span><?php