Empty the contents of a textarea after submit

[New001]

I have a comment box (textarea) inside a dialog. If the comment is successfully saved I want to clear the contents of the textarea and close the dialog box. ATM the dialog box will close but I need to wipe its contents.\[code\]<textarea id="CommentBox" type="text" runat="server" rows="7" maxlength="2000" /> if (CommentSuccessfullyUpdated == "TRUE") {//empty the comment box??//something like$("#CommentBox").empty();//closes the dialog box$("#dialog").dialog('close');\[/code\]Thanks for any repliesEdit:Thanks for the help guys. It is running through the code but its not working. I think it has to do with in order to pick up the correct vales and resolve a biding issue I had to use:\[code\] function SubmitButton() { var commentBoxData = http://stackoverflow.com/questions/15545379/$('#<%=CommentBox.ClientID%>').val(); }\[/code\]When run through with a breakpoint returns:\[code\]function SubmitButton() { var commentBoxData = http://stackoverflow.com/questions/15545379/$('#ctl00_ContentPlaceHolder1_CommentBox').val();}\[/code\]AND:\[code\]<textarea name="ctl00$ContentPlaceHolder1$CommentBox" id="ctl00_ContentPlaceHolder1_CommentBox" type="text" rows="7" maxlength="2000"> </textarea> \[/code\]So Im guessing im not referencing the same textarea when I try to empty it.Also tried \[code\]$("#CommentBox.ClientID").val('');\[/code\]but no joy....ay ideas?