setTemplate('am/revslider/widget/form/thumb.phtml'); } public function getElement(){ return $this->_element; } public function setElement(Varien_Data_Form_Element_Abstract $element){ return $this->_element = $element; } public function render(Varien_Data_Form_Element_Abstract $element){ $this->setElement($element); return $this->toHtml(); } }