EVent Tracking for Call to Ation button

I’m using the Sydney Call-to-Action widget and need to set up Event Tracking for Google Analytics to track the clicks on that button. I need to insert some JavaScript into the link code, for example: link text. Since the widget doesn’t allow for that, what would be a good work around? Or, for example, if I want to add a TARGET="_Blank" property to the link I still would need access to the CTA link code.

In the above question, where it says “Link Text”, I was giving an example of the onClick script from GA that I need to insert inside the “a href” tags.