Reading the source (app.js) I can see you've not used var to define variables. I'd suggest reading this: http://stackoverflow.com/questions/4862193/javascript

Reading the source (app.js) I can see you've not used var to define variables. I'd suggest reading this: http://stackoverflow.com/questions/4862193/javascript-global-variables http://stackoverflow.com/questions/4862193/javascript-global...