This message is in MIME format. Since your mail reader does not understand this format, some or all of this message may not be legible. -- [ Picked text/plain from multipart/alternative ] > I need to validate a field so that NONE of the following > characters will be > entered: > > \/:*?"<>| > > Any ideas on how to do this? Head on over to: http://www.dhtml-zone.com/articles/nz012402/nz012402-1.asp There's an excellent article on using Javascript to mask input.