protected function _toHtml()
 {
     $this->setBlockPosition(AW_Zblocks_Model_Source_Position::WIDGET_POSITION);
     Mage::helper('zblocks')->setWidgetIdentity($this->getBlockId());
     return parent::_toHtml();
 }
 protected function _toHtml()
 {
     return parent::_toHtml();
 }