Millisecond Forums

I would like to display text that includes a random number between 10000 and 50000, but for the text to include the commas so that it reads as "10,000 followers" and "50,000 followers".

This is what I currently have:

<text followersText>
/ items = ("<% round(rand(10000, 50000)) %> followers")
/ position = (20%, 65%)
/ fontstyle = ("Arial", 2%, false, false, false, false, 5, 0)
/ color = steelblue
/ halign = left
</text>

Thanks!