Possible Duplicate:

Javascript capture key

I'm working on reply function using mysql and php.

My MySQL db:

reply:

  rid - id;

  topicid - under which topic;

  uid - id of the guy who replies;

  content - what did the guy said.

Here's my html code:

<form id=replyform>

  <textarea name=rplcont placeholder=Press enter to submit your reply.><textarea>

</form>

My question is: How do I know if enter button is pressed?

Many thanks.

/----------------------------------------------/

here's my codes that work:

html:

<textarea id=reply name=reply onKeyPress=enterpressalert(event, this)></textarea>

js:

function enterpressalert(e, textarea){

var code = (e.keyCode ? e.keyCode : e.which);

if(code == 13) { //Enter keycode

 alert('enter press');

}

}

and it works.

Thanks for everyone who concerns this topic!