Scripting help: how to make ls shut up?

Hi, I have made a script that prints some various things to the screen. In the process the script is doing a loop which searches for certain files in certain directories. The problem comes in when it doesnt find any files. It prints an error to the screen. There must be a way to prevent that! Any help is appreciated.

<font color=blue>- Studies show that the human brain approaches 100 percent retention. -</font color=blue>

Thanks for the help, I got it working. For anyone that is interested, stderr is 2, so you can do something like this:
ls somefilename 2> errorlog.txt



<font color=blue>- Studies show that the human brain approaches 100 percent retention. -</font color=blue>