The map you are using was originally developed some years ago using the Google Maps API version 2 (v2). Google has since deprecated that product in favor of version 3 (v3). On November 19, 2013, all maps using the v2 API will be running using a "v3 wrapper" which may or may not allow some or any of the features of the map to be available. The map pages with a business case have been converted to v3 by the deadline. Those that haven't been converted by November 19, 2013 will be running under that wrapper. Some of these may eventually be converted to v3. The majority of the unconverted programs that don't run well under the wrapper will be removed from the internet.
We apologize for any inconvenience.
John Coryat, USNaviguide LLC