Highlight detail rows on parent hover?

ptep

Hmm - been search all around the web, and haven't been able to solve this one...

I have modified the example found here: http://datatables.net/release-datatables/examples/api/row_details.html to expand on a row click. When I expand the row, and hover over the "parent," I'd very much like to have the detail row highlighted as well.

And I can't seem to figure it out!

Here's the code I'm working with: http://jsbin.com/kajegepi/1/edit

Bonus points: Why in the world when I click on the row to expand, do ALL the icons for all the rows change?

Thanks so much!