jQuery实现联动下拉列表查询框

<!DOCTaYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
    <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
    <title></title>
    <meta name="keywords" content=" keywords" />
    <meta name="description" content="description" />
</head>
<script src="http://upcdn.b0.upaiyun.com/libs/jquery/jquery-2.0.2.min.js">
</script>
<style type="text/css">
    body{font-size:13px}
    .clsInit{435px;height::35px;line-height:35px;padding-left:10px}
    .clsTip{padding-top:5px;background-color:#eee;display:none}
    .btn{border:solid 1px #666;padding:2px;65px;float:right;margin-top:6px;margin-right:6px;filter:progid:DXImageTransform.Mcrosoft.Gradient(GraientType=0,StartColorStr=#FFFFFF,EndColorStr=#ECE9D8);}
</style>
<body>
<script type="text/javascript">
    $(function(){
        function objInit(obj){
            return $(obj).html('<option>请选择</option>');
        }
        var arrData={
            厂商1:
            {
                品牌一:'型号1-1-1,型号1-1-2',
                品牌二:'型号1-2-1,型号1-2-2'
            },
            厂商2:
            {
                品牌一:'型号2-1-1,型号2-1-2',
                品牌二:'型号2-2-1,型号2-2-2'},
            厂商3:
            {
                品牌一:'型号3-1-1,型号3-1-2',
                品牌二:'型号3-2-1,型号3-2-2'
            }
        };
        $.each(arrData,function(pF){
            $('#selF').append('<option>'+pF+'</option>');
        });
        $('#selF').change(function(){
            objInit('#selT');
            objInit('#selC');
            $.each(arrData,function(pF,pS){
                if($('#selF option:selected').text()==pF){
                    $.each(pS,function(pT,pC){
                        $('#selT').append('<option>'+pT+'</option>');
                    });
                    $('#selT').change(function(){
                        objInit('#selC');
                        $.each(pS,function(pT,pC){
                            if($('#selT option:selected').text()==pT){
                                $.each(pC.split(","),function(){
                                    $('#selC').append('<option>'+this+'</option>');
                                })
                            }
                        })
                        
                    });
                }
            })
        });
    });
</script>

<div class="clsInit">

    厂商：<select id="selF"><option>请选择</option></select>
    品牌：<select id="selT"><option>请选择</option></select>
    型号：<select id="selC"><option>请选择</option></select>
    <input type="button" value="查询" id="Button1" class="btn" />
</div>
<div class="clsInit" id="divTip"></div>

</body>
</html>
效果如下：