Reviewed Additional Javascript Tests

@clarkbarz reviewed the javascript tests in pull request #128, which was requested in #127. 
oh.. I see now,  see, based on this test, I thought that there was one div that you were changing.

Maybe something like this would be more obvious:

```javascript
assert.equal($('div.modal').length, 0);
// do stuff
assert.equal($('div.modal').length, 1);
```