2005 Dodge Neon timing belt

hello. my car reciently has been running ruff when i'm stopped. was told to check the timing belt. when i called a local repair shop i was told the my car didn't have a timing belt but that ot was electric timing. when i looked up replacement parts there was one for it. so i'm confussed. i would really apreiate you advice on what to do. if it is all possible would like to do myself to save a little money. thank you for your time. melissa