Diagnose problem with Javascript and Google Maps on my site

I do an annual video of portions of our local rivers and then upload them to YouTube for public consumption. Last year the client asked me to create a website that would compare the current year video with the previous year's video. A friend of mine created a Javascript file that would make this happen. You can see the results here: [login to view URL] . Basically what happens is you click a point on the map and two videos load below and start playing simultaneously. For the 2012 version, everything works fine. There is a Google Drive spreadsheet file that's published as a website and it has the time interval and lat/long for each point on the map. However, we just finished the 2013 videos, and I copied all the files over and made the necessary changes in the code (to point to the 2013 spreadsheet), but the 2013 web page will not load the maps: [login to view URL] I need someone to examine the Javascript files and any other relevant files to see what's going wrong. I'll share the Google Drive document with you and will email you the Javascript files, HTML, etc.