Non-javascript voting not working correctly

A user who doesn't have javascript and votes will have the node page refreshed, and the message 'Thank you for your vote' is displayed to him.

There is a typo in the code that causes a JSON array of values to be displayed to the user instead. This can be fixed by changing this block of code:

    if ($json = 'json') {
      // This print statement will return results to jQuery's request.

to:

    if ($json == 'json') {
      // This print statement will return results to jQuery's request.