Ajaxy Function to strip non alpha-numerics
I wanted to make something that would just straight prevent people from registering to my site with special characters in their username. I was playing around with all types of complicated crap, but then I came up with this little doozy that works perfectly. Small, quick, and unobtrusive. Obviously, if you really don’t want them in a submitted text field, you have to back it up with server-side processing.
.: Adam