This is an example of how the map markers can up updated via on-the-page Javascript.
Below is the HTML and Javascript that is used on this page.
A great place to get all your groceries, especially fresh fruits and vegetables.
The best authentic Mexican restaurant in San Francisco.
A hands-on museum of science, art, and human perception in San Francisco.
Best Bread in the Bay.
Alice Waters' restaurant. Birthplace of California cuisine.