In the FireFox error console, I see the following error:
Error: Permission denied for <http://www.thehearingstores.com> to get property Window.maps from <http://www.webassist.com>.
Source File: locations.html#
Not sure what is causing it, but it appears the script is trying to get the Window.maps property of a page at webassist.com.
The only code on your page I see pointing to our domain is in the maps, the icon images are stored at google.webassist.com.
This was changed in version 2.0.6. you could try creating the maps using 2.0.6 of pro maps, which will create the map images locally so it will no longer be looking for then on our servers.