What are the good and bad neighborhoods in Joliet Illinois?|130008

I_m moving to Joliet Illinois and looking to rent an apartment (not a flat) in a safe and quite area. I_m totally unfamiliar with the city. Does anyone know the good nieghborhoods vs. bad ones? Please include some street names so I can mark it on a map. Thanks to anyone who helps!

Most of Joliet is ghetto especially downtown and the east side. The west side by the mall is probably the nicest area.