This is my Tk package to allow validation of user input in Tk entries and keyboard navigation between entry widgets via the "Tab" key. The FAQ section on extensions follows: What: validate Where: harbor.ecn.purdue.edu:/pub/tcl/code/validate.shar.Z Description: example of using bindings to validate entry widget data. Contact: vanandel@rsf.atd.ucar.edu (Joe VanAndel) Thanks. Joe VanAndel Internet:vanandel@ncar.ucar.edu National Center for Atmospheric Research