Mobile home wiring

I have what I think is a bad light switch in my kids room. There are multiple outlets connected in here (3 of them are light switches for sure). My wife went to turn on our bathroom light when she heard what turned out to be electricl static and the lights would not come on. I checked the switch and it looks OK in the bathroom. I then checked the bedroom switch in my kids room and I could hear the same static when I reappplied the power to the breaker. This tells me this switch is more than likely the culprit.

There are a total of 3 romex 3 wire cables leading into this box. I think one os for this switch in the kids room and the other 2 most likely lead to the bathroom switch and the other one to another light switch in a smaller bedrrom.

I want to know what type of switch I should buy to replace this with and how to wire it up. The existing switch has 3 bars on top and 3 bars on the bottom that the wiring snaps into right now (original switch). the top 3 bars have 2 romex wires (for a total of 6 wires snapped into it and the bottom has the remaining wire. Balck to the left, copper in the middle, and white to the right terminals.

I am sorry if I haven't given enought info. please let me know if there is anything else anyone needs to assist me in this matter.

I know I should rewire the entire place but I am currently unemplaoyed which makes this not an option at this time.

Thank you.

 

I don't know what a "bar" is. Please answer the following quesitons:[list=1][*]Can you tell me how many screws are on this switch and their colors?[*]Also tell me if the lever of the switch says "on" and "off" or whether the lever is blank.[*]Is the wire copper or aluminum?[*]When you say "3-wire cable," do you mean black/white/bare, or black/white/red/bare?[/list=1]