As you can see, the "yes/no" widget on the bottom of the screenshot is:
The number is not part of the button. How to make it like this instead:
edit: a perfect example, the thumbs-up/thumbs-down rating widget on Yahoo Answers: http://answers.yahoo.com/question/index;_ylt=Ao37OQz9iO3ZJvacOl9pH8_j1KIX;_ylv=3?qid=20121104010935AAs5NQk
The number is in the button. Clicking anywhere on that button registers a vote.