Civic EG

the car's battery literally drops down to where u cant turn it on because battery drains to nearly nothing.

First, are you sure that the battery is being charged when the engine is running? How old is the battery?

how do i figure if its charging? but the battery drains when the car is off tho?

If your car needs it, get it jumped so that you can start the car. Then get a voltmeter and test your battery by posting it on the positive and negative. If you see it fluxing around the ~12v area, then you're good. But if not, turn the car off. Check your battery again and watch the volt numbers from your battery. If you see the numbers decrease, something in your car is draining it (could be an electrical problem) or the battery can't hold the charge anymore (usually means a new battery)

Start you car...I'm sure you can get it jump started.

Now with the engine running

what volts are showing with no accesories on?

what volts are showing with all accesories on (AC/Heater on high, headlights on, radio on, rear defroster on, and domelight on) ?

Your can test the voltages at the battery or other places.

^This test will show if your alternator is working correctly

Now before you do that test check your grounding points in your engine bay. If they are corroded, clean them. This will cause voltage drop and will not charge the battery correctly

After you test the alternator if you want to find out if something is draining your battery...you need to do a parastic draw test.
http://www.youtube.com/watch?v=PYUoXApI89Q
http://www.youtube.com/watch?v=KF1gijj03_0