Instant Numeric Validation

[Kesavan Muthuvel]

I need a code to check instantly the value in textbox.
The code is to not allow users even to enter alpha characters in the
textbox.

Thank you

Kesavan Muthuvel
Chennai INDIA

 

[Man-wai Chang]

I need a code to check instantly the value in textbox.
The code is to not allow users even to enter alpha characters in the
textbox.

use Regexp

Look at the thread a few lines away with subject="Regular expression for
required alpha and numeric characters"

 

[scripts.contact]

I need a code to check instantly the value in textbox.
The code is to not allow users even to enter alpha characters in the
textbox.

<textarea
rows=20 cols=60
onkeypress="if(/\w/.test(String.fromCharCode(event.keyCode)))return
false"</textarea>

 

[RobG]

I need a code to check instantly the value in textbox.

Instantly after what?

The code is to not allow users even to enter alpha characters in the
textbox.

No need for script, just use HTML:

<input disabled>

 

[RobG]

<textarea
rows=20 cols=60
onkeypress="if(/\w/.test(String.fromCharCode(event.keyCode)))return
false"

That doesn't stop me entering anything I want.

 

[scripts.contact]

That doesn't stop me entering anything I want.

maybe i misunderstood the op..