Adding Google Analytics event tracking of TML links?

I’m adding Google Analytics event tracking class declarations to important links on my site and using javascript to record clicks.

I’d like to track clicks this way on my Register, Login and Lost Password links, all generated by TML, by adding e.g. class=”registrations” to the declaration of the corresponding link.

How can I do this?

Thanks!

https://wordpress.org/plugins/theme-my-login/