public static function renderStatusButtonsContent(Conversation $conversation)
 {
     $content = ZurmoHTML::radioButtonList(self::getRadioButtonListName($conversation->id), $conversation->resolveIsClosedForNull(), self::getDropDownArray(), array('separator' => '', 'template' => '<div class="switch-state clearfix">{input}{label}</div>'));
     return ZurmoHtml::tag('div', array('class' => 'switch'), $content);
 }