protected function _initializePrefixes()
{
if (!$this->_prefixesInitialized) {
if (null !== $this->getView()) {
$this->getView()->addHelperPath('Twitter/Bootstrap/View/Helper', 'Twitter_Bootstrap_View_Helper');
}
$this->addPrefixPath('Twitter_Bootstrap_Form_Element', 'Twitter/Bootstrap/Form/Element', 'element');
$this->addElementPrefixPath('Twitter_Bootstrap_Form_Decorator', 'Twitter/Bootstrap/Form/Decorator', 'decorator');
$this->addDisplayGroupPrefixPath('Twitter_Bootstrap_Form_Decorator', 'Twitter/Bootstrap/Form/Decorator');
$this->setDefaultDisplayGroupClass('Twitter_Bootstrap_Form_DisplayGroup');
$this->_prefixesInitialized = true;
}
}