/**
  * _construct
  */
 public function _construct()
 {
     // Initialise layout for attribute selection block
     $adminLayout = mage::getModel('core/layout');
     $renderAttribute = $adminLayout->createBlock('merchandiser/adminhtml_system_config_form_renderer_select', 'smartmerch_dminhtml_system_config_form_renderer_select', array('values' => $this->populateAttributes(), 'class' => 'vm_select'))->setWidth(100);
     $renderLogic = $adminLayout->createBlock('merchandiser/adminhtml_system_config_form_renderer_select', 'smartmerch_dminhtml_system_config_form_renderer_select', array('values' => array('OR' => 'OR', 'AND' => 'AND'), 'class' => 'vm_select logic_link'))->setWidth(75);
     // Add main columns
     $this->addColumn('attribute', array('label' => Mage::helper('merchandiser')->__('Attribute'), 'renderer' => $renderAttribute));
     $this->addColumn('value', array('label' => Mage::helper('merchandiser')->__('Value')));
     $this->addColumn('link', array('label' => Mage::helper('merchandiser')->__('Logic'), 'renderer' => $renderLogic));
     $this->_addAfter = false;
     $this->_addButtonLabel = Mage::helper('merchandiser')->__('Add Attribute');
     parent::_construct();
     $this->setTemplate('merchandiser/smartmerch/attributes.phtml');
     $this->setHtmlId('_cat_' . Mage::registry('category')->getId());
 }
 protected function _construct()
 {
     parent::_construct();
     $this->setTemplate('allbear/cghomepage/system/config/form/field/static_array.phtml');
     $this->_helper = Mage::helper('allbear_cghomepage');
 }