Google Plus One Button - How to add a callback?

Question

I have the google+ button being rendered on my site as follows:

In the JS:

    var po = document.createElement(\'script\'); po.type = \'text/javascr         


        

Answer 1

You can add a JavaScript callback using a callback attribute to your +1 button markup. Supply the name of a function that resides in the global namespace. It will be called when a user clicks on the +1 button.

Here's what your code might look like:

You can learn more about this attribute in the tag parameters section of the documentation.