T.v show i really love but dont remeber wat itz called :( help!?

well my bros been bugging me a lot lately about a show we used to watch in summer. It came on channel 25 (YTV,) well last summer there was this show that came on everyday in the morning and it was about some kids who went to school and then like somewhere in the boiler room there was this evil scientist or something like that, and he had gles and a purple cape and had a rat that's name was rufus who could talk. They had this huge computer that changed the school into a jungle or had dinosaurs roaming the halls. I remember that one kid had a round face and wore a red cap..i think :S and there was this smart kid, one that was in luv with fashion adn another one. Does anyone noe the name of that show?