Create a custom design block in magento#

step 1: Register module in `app/etc/modules/.xml#

<?xml version="1.0" encoding="UTF-8"?> <config> <modules> <Inchoo_AdminBlock> <version>1.0.0.0</version> </Inchoo_AdminBlock> </modules> <global> <blocks> <inchoo_adminblock> <class>Inchoo_AdminBlock_Block</class> </inchoo_adminblock> </blocks> </global> <admin> <routers> <adminhtml> <args> <modules> <inchoo_adminblock after="Mage_Adminhtml">Inchoo_Adminblock_Adminhtml</inchoo_adminblock> </modules> </args> </adminhtml> </routers> </admin> </config>