As I was browsing through Stack Overflow, I had to flag something to the mods.
While doing so, I saw a wonderfully designed popup and I have shamelessly ported that. :)

Now I would like to have a modal associated with it. I would like to have a generic solution.
My questions are:
- Can jQuery UI dialog be themed like this easily or shall I go with blockui?
- Is it illegal to copy this style from Stack Overflow?
Also I didnt see any plugins used by SO for this. Have they implemented their own popup?
Update:
I would like to use jQueryUI dialog as I really would like to implement explode on hide.
hide: "explode"
Did it with jQuery BlockUI. Any better implementations are welcome