Counting div elements based on id

Answer 1

To expand on Boldewyn's comment, you can provide multiple classes delimited by spaces, and then work with those classes separately or in combination.

This probably removes the need for the ids, but I've left them in just in case:

And then with jQuery you can count just the desired items with:

$j('#content>#boxes>.box.content.text').length

(or perhaps just use '#boxes>.box.text' or whatever works for what you're trying to match)