passing variables...

Passing them within functions.

https://www.daniweb.com/web-development/javascript-dhtml-ajax/threads/298104/passing-variables-from-one-function-to-another

http://stackoverflow.com/questions/10579713/passing-a-local-variable-from-one-function-to-another

http://javascript.about.com/od/3functions/a/fun06.htm