Anonymous - 2012-11-12

Hello I am trying to re-create a memory cell in logisim that holds a 1 or 0 depending one b or b'. however when I try to make a circuit with the two not gates I error out constantly and I cannot get the middle circuit to hold a 1 or 0 opposite charge. I also am trying to find a two-way transistor in logisim that lets a value go in or out instead of just one way. Does anyone know how to do this or can help me? I have linked an image of exactly what I am trying to create.