Write Magento Extension

Task for the extension: (1) Modify Layout for product in a specific catalog - Backend control such as which catalog id to apply such product page layout - All products will have about 2 dozens or so custom options (identical template), your extension needs to apply a design layout for these custom options - Layout for these custom options should be updatable on a phtml file (2) Calling javascript function for each custom option - We will provide a list of javascript functions for each custom option item to call to. For example, if item 'red' is choose for option 'color', then the script should called a function specified for it. - create a separate sql table to store which javascript function to call for which option item. it will be a option name matching mechanism. We will provide the list.