I'm not a newbie but let's just say I am advancing slowly. Thank you to all who have helped me up until this point. 

Here's my issue.

While the code in my jsfiddle below works, I still get the following error:

Uncaught ReferenceError: startFilter is not defined

Of course, because of this error, I can't get any additional jquery to work.

The purpose of the drop down menu is so that depending on what is selected, then the proper div or divs appear.  the correct divs are appearing but until I figure out how to define startFilter, I'm up the creek.

Any help pointing me in the right direction is greatly appreciated!  Even if it's "get you head out of your ..."

I have a feeling I am missing something super obvious.  I hate that!

https://jsfiddle.net/ptb/ccf26mhb/80/