Can I use onkeydown with invoke?

[Nik]

Hello all,

I am wishing to do something like this:

$$('input.info').invoke('onkeydown', function(){...})

is that possible?

Basically, I want to limit all the input field with 'info' class to
allow only alphabets, number , backspace and space with a custom
function.

Thank You!

[Hector Virgen]

You want to invoke the 'observe' method:

$$('input.info').invoke('observe', 'onkeydown', function(){...})

-Hector

[Rick DeNatale]

You might want to have a look at lowpro as an adjunct to prototype

http://www.danwebb.net/2006/9/3/low-pro-unobtrusive-scripting-for-prototype
--
Rick DeNatale

My blog on Ruby
http://talklikeaduck.denhaven2.com/

[kangax]

Maybe something like this should do it:

$$('input.info').invoke('observe', 'keydown', function(e) {
if (!(/^(\w|\s)+$/).test(String.fromCharCode(e.keyCode))) {
e.stop();
}
});

--
kangax

[Edward Grant]

> Basically, I want to limit all the input field with 'info' class to
> allow only alphabets, number , backspace and space with a custom
> function.

I have had good luck using http://www.livevalidation.com It might be
more than you want but is great for making validations readable for
when you com back to the code later.

--
Edward Grant
themas...@gmail.com