Are conditionals possible with prefixes?

[nando99]

I'd like to show attached thumbs a certain way depending on the prefix of the post. I've already done it depending on forum - but I'd like more control over it and do it depending on thread prefix... This would all happen in the postbit template.... All I really need is the if statement, not sure what it would be and figured I'd ask since finding the right variable for the forumid in the postbit took a while.... Thanks again to Lynne if she reads this!

thanks in advance...