Random Number

[Greig]

Does anyone know if it's possible to generate a random number when a member posts a thread with the likes of Template Conditionals? Basically, I want this to happen:

1. Member clicks New Thread
2. Adds their subject and text > Clicks Post Thread

3. Their thread then shows:

Subject: Their Subject

Message: Their Message + Your Random number is: *Random Number*

I just want the text Your Random Number is: and the number to appear in their post in a specified forum.

Maybe you can do it with Xthreads possibly? Or maybe it requires a whole new plugin, who knows. I'm just looking for the easier options