StoreController

public function editAction()
    {
        $id = $this->getRequest()->getParam('store_id');
        var_dump($id);
        Mage::register('store_block',Mage::getModel('store/block')->load($id));
        $blockObject = (array)Mage::getSingleton('adminhtml/session')->getBlockObject(true);
        if(count($blockObject)) {
            Mage::registry('store_block')->setData($blockObject);
        }
        $this->loadLayout();
        $this->_addContent($this->getLayout()->createBlock('store/adminhtml_store_edit'));
        $this->renderLayout();
    }

    public function saveAction()
    {
        try {
            $id = $this->getRequest()->getParam('store_id');
            $block = Mage::getModel('store/block')->load($id);
            $block
                ->setData($this->getRequest()->getParams())
                //->setCreatedAt(Mage::app()->getLocale()->date())
                ->save();
            if (!$block->getId()) {
                Mage::getSingleton('adminhtml/session')->addError('Cannot save offline store');
            }
        } catch(Exception $e) {
            Mage::logException($e);
            Mage::getSingleton('adminhtml/session')->addError($e->getMessage());
            Mage::getSingleton('adminhtml/session')->setBlockObject($block->getData());
            return  $this->_redirect('*/*/edit',array('store_id'=>$this->getRequest()->getParam('store_id')));
        }

        Mage::getSingleton('adminhtml/session')->addSuccess('Offline store was saved successfully!');

        $this->_redirect('*/*/'.$this->getRequest()->getParam('back','index'),array('store_id'=>$block->getId()));
    }