we want customers to enter zip code on product view page to find delivery is available or not for that zip code.
so we used this extension : http://www.magentocommerce.com/magento-connect/product-delivery-check-by-zip-code.html
we got what we needed by this extension. but after using this extension, "add to cart" button on product
view page is not working, also product images are not zooming as before.
seems this is the file for displaying on product view page
availability.phtml code here : http://pastebin.com/YpuwTkFS
please help me to find solution.