IE6 CSS issues/ JS errors

Hi- I’m hoping I can get some help here. I’m working on a new client’s wordpress site. He has a custom theme and I’ve noticed he has CSS issues in IE6 and I keep getting a JS scripting error.

http://yourlakenormandentist.com

Regarding the JS error… here’s the code:

[Code moderated as per the Forum Rules. Please use the pastebin]