Could you please elaborate what you are trying to do.
Why do you not want javascript functions to execute?
As Bear says vlidations are always written in code, either client side or server side.
There are frameworks like
struts which allow you to plug and unplug validation but there is no such switch ( again as Bear said) to put it off in javascript.
You can probably use some more javascript or jQuery code to control calls to validating functions, but still at some place in client side code you'll have to set the flag ON/OFF.
Not sure if you can tell all your users to disable javascript in the browser.
Also it will disable any other functionality you're achieving through client side code.