<script>

$(function(){

$.get("item.xml", function(data) {

$("#treeData").append("<tr>"

+"<td>id</td>"

+"<td>name</td>"

+"<td>price</td>"

+"<td>description</td></tr>");

$(data).find('item').each(function(){

var $item = $(this);

$("#treeData").append(

"<tr><td>"

+$item.attr("id")+"</td><td>"

+$item.attr("name")+"</td><td>"

+$item.find("price").text()+"</td><td>"

+$item.find("description").text()+"</td></tr>");

});

});

});

</script>

<script>

$(document).ready(function(){

$.getScript("test.js");

$('#submit').click(function(){

var msg = call($('.username').val());

$('#message').html(msg);

return false;

});

});

</script> 

$(function(){

$('#submit').click(function(){

var username = $('.username').val();

var sendData = 'username='+ username;

$.post("welecom.jsp", sendData, function(msg) {$('#message').html(msg);} );

return false;

});

});