How to get cursor/caret in an editable content <div>?

How to get cursor/caret in an editable content <div>?

Does jQuery provide an abstraction for getting and setting the cursor for editable content div's? And if not, any assistance on how to do this? I really just want to pass the "id" and a cursor value to set it... or just the id to get the cursor value. Basically, I'd really like a high-level interface because trying to get it to work on Firefox alone is a massive pain :(

The fundamental problem is this:

If you have a div that contains text and other html elements, if the user's selection encompasses text and html, it won't do anything. I don't even think it registers.

Even when you do get a selection though, we can only find the cursor value within that range. So if there's html elements that are siblings to the left of it, the number of positions isn't accounted for.

This is just a really silly problem. I was I could just "get the selection information" and "store the selection information". When I try that, it still doesn't work  :/