<pre name="code" class="html"><!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html lang="en">
<head>
<meta http-equiv="Content-Type" content="text/html;charset=UTF-8">
<title>Document</title>
<script src="jquery-1.8.2.min.js"></script>
</head>
<body>
<input type="text" name="test" id="test">
<input type="hidden" value="" id="tex1">
<div id="tex2" style="border:solid 1px #000fff;display:none;width:173px;"></div>
</body>
<script>
$('#test').keyup(function(){
var htm = '';
if($('#test').val().length<=0){
$('#tex1').val('');
$('#tex2').empty();
$('#tex2').hide();
}
if(($('#test').val().length)>0){
$.getJSON("json.php?k="+$('#test').val(), function(json){
$.each(json,function(i, item){
htm += "<div class='kkk' aaa='"+item[0]+"' >"+item[2]+"</div>";
})
$('#tex2').show();
$('#tex2').empty();
$('#tex2').append(htm);
});
}
})
$(".kkk").live('click',function(){
$('#test').val($(this).html());
$('#tex1').val($(this).attr('aaa'));
$('#tex2').empty();
$('#tex2').hide();
})
</script>
</html>