Redirect back to a specific tab on a form

I'm trying to edit a button so that it returns to the form and lands on a specific tab.  I already have the button to return to the form, but can't figure out the tab part.  I've read a couple of posts regarding this, but I can't seem to get it to work.  

The posts I've read use iol or .js to get the results.  Is there anyone who can help me figure this out?  I appreciate it.

Thanks, Dana