.bind( ) Javascript not working in Firefox & IE?

I have a div that on click moves to the right, and then on click again and it goes back to the left (its a newsletter pop-out). Everything is working perfectly in Safari and Chrome, however in Firefox and IE it will only open, it won't close when you click again. I am using .bind() and .unbind() Any suggestions? I am using jQuery version 1.3.2. I have a div that on click moves to the right,