Conflicting javascript code fix

I have several websites that have an image slider as well as a survey embed code that uses javascript. For some reason the code is conflicting to where the image slider isnt functioning properly on certain browsers (firefox). Im looking for a javascript programmer that can make an adjustment to the wordpress theme itself to fix this issue, and then copy the fix to the same theme I have on other sites. An example of a site with this problem is www.breakupadvice.com.