Add Google button+1 for popular Post

Just as the title, this procedure instructs you to insert Googlebutton to +1 with small size after the name of
each post inpopular widget posted.

Step 1: Add the following code before the </ body>.

<script src="" type="text/javascript"></script>
Step 2: Find all of the code <a expr:href='data:post.href'><data:post.title/></a>  and add the following code into it (with4 response code with 4 times more).

<g:plusone expr:href='data:post.href' size='small'/>
See demo here