Addition of a "You are here" marker to map after search

I would like to be able to display a "You are here" marker on the map after a user has submitted a search. This marker would reflect the location that the user has searched for and would likely use a different color, style, or image.

Examples of store locators that include a "You are here" marker can be found via the links below.
http://www.pomwonderful.com/where-to-buy/
http://codecanyon.net/item/super-store-finder/full_screen_preview/3630922

Below is a cropped screenshot of the Pom Wonderful store locator. The "You are here" marker is white. The stores located nearby are red pins.

If anyone knows how to accomplish this, please let me know. Thanks very much!