140707 Google Maps API

I need someone to make an addition to our current integration with google maps API. We the map integrated as well as the xml feeds to feed in markers. Please view at [login to view URL] Initially, we would like the default zoom to show most of the state of texas. The only markers that will show are at the metro level. These can be obtained from a php script that I will write to geocode the records. There will be four of them initially. After they click on the pushpin at the metro level, they will zoom in to see a more detailed view of that area which will then display the individual zip codes, which are again fed from a php script. My concern right now is that the first instance of the pushpin, when clicked, zooms in, while the second triggers the results page. Is this even possible? I have found this. I am not sure if it helps, but it explains what we are trying to do: [login to view URL] YOU MUST PMB BEFORE PLACING A BID WITH FEEDBACK ON HOW YOUR IDEA WILL WORK WITH OUR CURRENT SYSTEM. BIDS WITHOUT PMB WILL BE DELETED. PAYMENTS WILL NOT BE MADE UNTIL SUCCESSFUL INTEGRATION AND TESTING ON OUR SITE. PLEASE DO NOT BID IF YOU DO NOT AGREE WITH THESE TERMS.