I need to add a retailer locator search feature to a web site. What I'm looking for is a "closest retail location" finder that the user enters their address, and then gets the five closest retail locations for my client's product.

I would also like to be able to collect the address information users enter in a database. The locations for the products will need to be updated every 1 to 2 weeks.
This page has a good example of what I'm looking for: http://www.zocalousa.com/public/locator/

Please ask questions and also let me know if I've described this project correctly in the title and description. Thanks!This is for an existing web site. A database has not been setup but I do have lists of the retail locations posted on the site that are grouped into pages by city.Bidders, please provide a message with a link to a site that shows an example of this type of simple address search / retail location locator that you have programmed.