jquery - textarea enter submit form how to recive post form -

> want recive message post.asp how ?thk you.. 

<form name="message" action=""> <textarea type="text" id="usermsg"></textarea> </form> <div id="chatbox"></div> <script type='text/javascript'>  $(function() {    var firstname = $("#usermsg").val();    $("#usermsg").keypress(function (e) {       var  firstname = $("#usermsg").val();      if(e.which == 13) {             //i want recive message post... how it..**         //$.post("post.asp",{update2:firstname} , function(data),         $("#chatbox").append($(this).val() + "<br/>");         $(this).val("");         e.preventdefault();      }    });  });  </script> 

i recommend of using ajax()

something this:

$.ajax({   type: "post",   url: "post.asp",   data: { update2: firstname } //you can add more values in here if need   }).done(function( msg ) {   alert( "data saved: " + msg ); }); 

done triggered when ajax() call done.

if need check if code done wanted can have like:

$.ajax({       type: "post",       url: "post.asp",       data: { update2: firstname }, //you can add more values in here if need       cache: false,       success: function(response)       {alert(response);}                                                       }).done(function( msg ) {       alert( "data saved: " + msg );     }); 

edit:

if want post use like:

$.post("test.php", { name: "john", time: "2pm" }).done(function(data) {  alert("data loaded: " + data);});