Need to make a google map api work in html 5 website

I have an [login to view URL] page that needs to display a map with the google map lat/lng coordinates of 41.886832,-87.62997 This above page has two maps. The one on top our warehouse location is working correctly displaying the correct map. I need you to add a second google map script that will display our Corporate Office location at 55 W. Wacker Drive or google map lat/lng 41.886832,-87.62997 You can view the current page here: [login to view URL] and please review the attached .jpg for a visual of where the map needs to display. I will give you ftp access and I need you to test your changes in Chrome, firefox and IE9 and 10. This is an html5 mobile response website. This is a simple project for someone who really knows what they are doing and I have a small budget. You deliverables will be making the above change and it work correctly in html5. Secondly you need to show me the code you added, and what you changed to make the second map work and display. I appreciate your bids and thank you so much for considering doing this work for me.