title: Make Postal Code un required for Ireland in Magento
body: <p>I have Magento 1.7.0.0 intalled on my server. I am facing an issue regarding optional postal code country. I mean I want to make postal/zip code optional for Ireland, for this I have selected Ireland in the list of Optional countries in the Admin Panel (System > Configuration > General). But when I visit the checkout page and select Ireland, it removes an asterisk from the Zip/Postal Code field it's fine but when I click on Continue, It shows an alert box ("Zip/Postal Code is a Required value"). Why?<br>
  Please help me! Thanks in advance...</p>