Kernel Panic

Im getting continuous kernel panic and i have tried literally everything but i didn't try installing os x again because i dont have the discs with me here but i really need my computer to do my work. My computer froze so i had to force shut it and then i had the continuous apple sign with the thing spinning under it going on forever so i googled and it and tried to start it in safe mode but safe mode lead me to the not stopping kernel panic. I have a macbook pro 15 with stock hard drive 500 gb. Please help.

Kernel panics are normally more often than not hardware related.
Without your install discs you can't run the hardware test.
What I would be inclined to try is taking out one stick of RAM, and seeing if it boots, and if not, put it back in and take out the other stick of RAM and trying again.