You can add javascript to the textarea's onKeyDown, onKeyPress or onKeyUp handler. This
JS needs to check for the key that was pressed, using "event.keyCode". Then you can trap the enter key and call <myform>.submit() to submit the form. I don't recall off hand what the enter key code is, but you can just put in an alert() and spit out the keycodes to see what the enter key is.
Of course, the whole point of a textarea is to support multi-line text. If you are going to make the enter key act as the save action, why bother to use a textarea?
Peter
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Work smarter, not harder.