Has my iPod got a virus?

so what happened was I basically was on facebook on my ipod and my friend posted me a link on my wall (i think it was one of those dodgy links). i clicked on it and then the safari crashed and went to the home screen. after this, i went back on to safari, carried on looking at facebook and then the internet kept stopping. i noticed that this only happened after i'd clicked on the link. it's nothing to do with my internet connection because ive checked on my moms iphone and my pc. so how should i fix it? i cant go to the apple store because it's jailbroken and i really cba to reset everything