Wordpress JQuery – Save Checkbox Status

im trying to use this code in Wordpress:

http://ift.tt/1JcXyz2

It should save the status of clicked checkbox-fields in a cookie.

You can see my try (which doesn't work) here: http://ift.tt/2qB0XFJ

Javascript is loaded (I think): http://ift.tt/2m8VT6G

http://ift.tt/2qDaEDu

http://ift.tt/2marjJM

So, whats wrong?

Thanks! Michael