Detecting immediate text entry in text box

[Dr.Rock]

I have created a form in HTML, which consists of a text box. Is there a javascript command/function which detects as soon as an entry has gone into the text box (eg onChange???), so I can then immediately call up a function to read and react to that entry?

Thanks.

[Acidic]

you can use onChange or onBlur.Attach these to the textbox itself.

[Dr.Rock]

Thanks Acidic, but there's still a problem with my situation. Your solution works well when the user manually types his whole string into the text box, then text-input detection happens when the user takes the focus away from the text box.

The situation is this. The text in the text box is not directly user-entered. The user makes some selection and a Javascript function writes the approriate text into the text-box. I need to detect as soon as text enters the box, not after the user has focussed away from the box.

Hope you can help.

Thanks.

[CornedBee]

Since modifying the text via JavaScript doesn't trigger key events, there's no way to do this except modifying the script that writes in the box.