Cookie only in Firefox and not in IE

Well my problem is that I have a page with checkboxes. In IE it remembers what checkbox was checked/unchecked but not in FF so what I did was a cookie so it will remember in FF but now it's problems in IE so what I would need is a code that does is save/open the cookie in FF but not in IE. Can that be done?

Thanks

Impossible to say...
Please post som code snippets to go further with this.

well here you have all the files that I use: http://www.danellmusik.se/cookie.rar