title: Magento How to Add Product attribute of dropdown with Key Value Pair
body: <p>I tried to add a new "product attribute" of dropdown type filed in Magento, i am able to add my dropdown values, but what i need is to add the dropdown as Key => value pair, these key values are used by NAV System. So, how can we achieve this ??</p>
  
  <p>Let me explain with an example :</p>
  
  <p>S.No    Key Value
  1   IND India
  2   AUS Australia
  3   NZ  New Zealand</p>
  
  <p>Now, i am able to to insert values(India, Australia, New Zealand,...) ; Now i need to insert Keys ( IND, AUS, NZ,...) Because i have to send these key values to NAV System(ref: <a href="http://en.wikipedia.org/wiki/Microsoft_Dynamics_NAV" rel="nofollow">http://en.wikipedia.org/wiki/Microsoft_Dynamics_NAV</a>), as we integrated magento with NAV.</p>