How to disable keyboard using JavaScript

helloooo!!!

    i want to disable keyboard using ..java Script suppose user can print a page using Ctrl+P ....i don't want to let the user this.......

i want this thing dynamically created window…in which i already disabled menu bar using following script…

OpenWin = this.open("a.html, “CtrlWindow”, “toolbar=no,menubar=no,location=no,scrollbars=no,resizable=yes,width=600,height=500”);

please help me out…
thank’s in advance…
KRIS