Rolling Torg Dice

hi I would like to work out how to roll Torg dice you roll 1d20 , if roll a 10 or 20 , reroll and add so 1d20 =10 (+reroll of 20) =30 (+reroll of 5) =35 ? any ideas? thanks James

I would also love to see an implimentaiton of this. If there were some command usable at the end of a d20 roll, like /roll 1d20T for Torg or some such.

I have a calculator that spits out bonus, effect and such, but nothing that calc's the rolls. I'm working on building customized character sheets out of it. <a href="https://docs.google.com/spreadsheet/ccc?key=0ApDl3n9iYiyBdDlualNZWEV2eWVqWFlkcTg4aEFXRkE" rel="nofollow">https://docs.google.com/spreadsheet/ccc?key=0ApDl3n9iYiyBdDlualNZWEV2eWVqWFlkcTg4aEFXRkE</a> If you use OO, it's best to download it as an ODS, but it's perfectly functional in Google. Are there many Torg players on roll20? I just started messing with it in G+.