Stopping a jQuery event function from

Question

I posted a question yesterday which was answered, sadly though I now have a new issue with the said code and am looking for some kind soul to point me in the right direction so I can learn how to get the issues fixed so I dont need to ask for help in the issue again.

Here is the jsfiddle link to the script http://jsfiddle.net/EzYeH/10/

What I am trying to achieve is to stop the event function expand initialising if the event function shrink is still running.

I have tried using and reading up on .stopPropagation() & .stop() but cannot get the implementation correct.

Thanks in advance anyone who can tackle this,

Dan.