I have a homepage that requires a large flash banner to promote products. The problem is i've altered the template and when clicking on a category or product the header remains inside the tpl_header.php. I would like to change the zen_href_link function to direct to an alternative page instead of index.php so that these pages could have different layouts such as shop.php for the category and product pages. Any help on an easy way to solve for this would be greatly appreciated.