title: postcode and kilometer on google map
body: <p>I am new to working with google maps. I want to display a map when the user enters a post code and then selects "km". The map should display shops in the selected area, within a kilometer. How can I do this?</p>
  
  <p><a href="http://www.hm.com/no/store-locator" rel="nofollow">See this example</a>.</p>
  
  <p>If you select option 2 from the radio buttons, I want the same behavior. First post code and then select kilometer then search in Google Maps. </p>