<head runat="server">
<title> </title>
<script type="text/javascript" src="js/jquery-1.4.2.min.js"></script>
<script type="text/javascript">
$(document).ready(function(){
//
$('#add').click(function(){
var options=$('#select1 option:selected');
var remove=options.remove();
remove.appendTo("#select2");
});
//
$('#addAll').click(function(){
var options=$('#select1 option');
var remove=options.remove();
remove.appendTo("#select2");
});
//
$('#remove').click(function(){
var options=$('#select2 option:selected');
var remove=options.remove();
remove.appendTo("#select1");
});
//
$('#removeAll').click(function(){
var options=$('#select2 option');
var remove=options.remove();
remove.appendTo("#select1");
});
});
</script>
</head>
<body>
<form id="form1" runat="server">
<div id="left">
<select multiple="multiple" id="select1" style="width:100px;height:160px">
<option> 1</option>
<option> 2</option>
<option> 3</option>
<option> 4</option>
<option> 5</option>
</select>
</div>
<div>
<span id="add"> >></span><br />
<span id="addAll"> >></span>
</div>
<div id="right">
<select multiple="multiple" id="select2" style="width:100px;height:160px"></select>
</div>
<div>
<span id="remove"><< </span><br />
<span id="removeAll"><< </span>
</div>
</form>
</body>
