It might be related to the fact that http://stmarytampa.org/menufiles/mbjsmbmenueb031115.js is loaded 6 times in your page. It should only be done once. By examining your page I see that you have 6 copies of the menu - 5 hidden and 1 visible. Please remove the hidden ones.
Can you help me find where these 5 hidden menu codes are located? Are they on the website for stmarytampa.org? Sorry about my limited understanding of code.
In this specific case there were multiple DIVs that were set style attribute display: none or hidden. What's the link to your page? I could take a look.