Disabling submit button

[Crump]

I see some sites that disable the submit button after it has been pressed to make sure it doesn't get clicked twice. Also they change the text inside the button (or new text appears next to it saying "Processing..." or something like that).

I take it this is done in javascript, but I couldn't find the answer on the net anywhere.

Any tips?

[Fotiman]

It's probably just an onclick event handler for the button. For example:

<input type="submit" name="submit" value="submit" onclick="this.disabled=true;this.value='Processing...';">