js省市区

<!--省市区街-->
<div class="selectAllArea">
    <div class="selectAllChoose">
        <dl class="selectssqj select1" style="margin-left: 12px;">
            <dt><span class="shengName" data-value="">请选择省份</span><img src="yyimg/up2.png" alt="" class="upOrDownselect"></dt>
            <dd>
                <ul class="sheng">
                    <!--<li><a href="#">12131</a></li>-->
                </ul>
            </dd>
        </dl>
        <dl class="selectssqj select2">
            <dt><span class="shiName" data-value="">请选择城市</span><img src="yyimg/up2.png" alt="" class="upOrDownselect"></dt>
            <dd>
                <ul class="shi">
                </ul>
            </dd>
        </dl>
        <dl class="selectssqj select3">
            <dt><span class="quName" data-value="">请选择区域</span><img src="yyimg/up2.png" alt="" class="upOrDownselect"></dt>
            <dd>
                <ul class="qu">
                </ul>
            </dd>
        </dl>
    </div>
    <div class="twobtnS">
        <a href="#" class="twobtnChoose cancelBtn">取消</a>
        <a href="#" class="twobtnChoose sureBtn">确定</a>
    </div>
</div>

/*省市区街*/
.selectAllArea{ 568px;border: 1px solid rgba(0,160,233,1);height: 124px;position: fixed;top: 136px;left: 14px;z-index: 20;background: rgba(2,16,45,.8);padding-top: 10px;display: none;}
.selectssqj{position:relative;float:left;margin: 0 5px;}
.selectssqj dt{font-weight: normal;border:1px solid rgba(4,44,80,1); 172px;height: 32px;display:inline-block;line-height: 32px;padding-left:10px;cursor:pointer;padding-right:12px;white-space:nowrap;text-overflow:ellipsis;overflow:hidden;position:relative;z-index:99;color: #fff;background: rgba(4,44,80,1);border-radius: 4px;}
.selectssqj dt .upOrDownselect{position: absolute;top:12px;right: 10px;}
.selectssqj dt:hover,.selectssqj dt.cur{border:1px solid #409DFE;box-shadow:0 0 3px #409DFE;}
.selectssqj dd{position:absolute;left:0;top:29px;border: 1px solid rgba(0,160,233,1);display:none;background: rgba(4,44,80,1);z-index: 11;}
.selectssqj dd ul{padding: 0; 170px;max-height:250px;overflow:auto;margin-bottom: 0;}
.selectssqj dd ul li a{line-height:28px;display:block;padding:0 8px;color: rgba(255,255,255,.5);}
.selectssqj dd ul li a:hover{background: rgba(35,218,238,.13);color: #fff;}

/*省市区街按钮*/
.twobtnS{ 147px;height: 28px;position: absolute;bottom: 25px;left: 204px;z-index: 10;}
.twobtnS .twobtnChoose{display: block;  60px;height: 26px;line-height: 26px;border-radius:4px;font-size: 14px;color: #fff;text-align: center;}
.twobtnS .twobtnChoose.cancelBtn{float: left;background:rgba(2,17,46,1);border:1px solid rgba(0,160,233,1);}
.twobtnS .twobtnChoose.sureBtn{float: right;background:#00A0E9;border:1px solid rgba(0,160,233,1);}
.twobtnS .twobtnChoose:hover{color: #fff;}

showProvinces(null, 0, 1);
function showProvinces(obj, parentId, regionlevel) {
   
    $.ajax({
        type : "post",
        dataType : "json",
        url : "" + getRootPath() + "/admin/city!list?parentId=" + parentId
            + "&regionlevel=" + regionlevel + "",
        success : function(result) {
            if (result.success) {
                var data = result.cityList;
                var htmlStr = "";

                for (var i = 0; i < data.length; i++) {
                   if(regionlevel != 3)
                      htmlStr += "<li onclick='showProvinces(this, " + data[i].id + ", "+(regionlevel+1)+")' value='" + data[i].id + "' class='selectV'><a class='optionV' href="#" >" + data[i].regionName + "</a></li>";
                   else
                      htmlStr += "<li value='" + data[i].id + "' class='selectV'><a class='optionV' href="#" >" + data[i].regionName + "</a></li>";
                    // console.log(data[i].id)
                }
                if (regionlevel == 1) {
                    $(".sheng").html(htmlStr);
                    $('.shengName').text("请选择省份")
                }else if (regionlevel == 2) {
                    $(".shi").html(htmlStr);
                    $('.shiName').text("请选择城市")
                    $('.quName').text("请选择区域")
                }else if (regionlevel == 3) {
                    $(".qu").html(htmlStr);
                    $('.quName').text("请选择区域")
                }
            }
            var that = $(".select" + regionlevel);
            var s=$(that[0]);
            var z=parseInt(s.css("z-index"));
            var dt=$(that[0]).children("dt");
            var dtValue=$(that[0]).children("dt").children("span");
            var dd=$(that[0]).children("dd");
            var _show=function(){dd.slideDown(200);dt.addClass("cur");s.css("z-index",z+1);};   //展开效果
            var _hide=function(){dd.slideUp(200);dt.removeClass("cur");s.css("z-index",z);};    //关闭效果
            dt.unbind('click');
            dt.bind('click', function(){dd.is(":hidden")?_show():_hide();});
            dd.find("a").unbind('click');
            dd.find("a").bind('click', function(){
               dtValue.html($(this).html());//文本
                dtValue.attr("data-value", parentId);//id
                console.log(parentId)
               _hide();
            });     //选择效果（如需要传值，可自定义参数，在此处返回对应的“value”值 ）
            $("body").click(function(i){ !$(i.target).parents(".selectssqj").first().is(s) ? _hide():"";});

        },
        error : function() {
            message_box.show('获取数据失败！', 'error');
        }
    });
    
}






























html  demo如下

<!DOCTYPE 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>jquery表单点击滑动下拉框美化 - 站长素材</title>
   <script src="https://code.jquery.com/jquery-3.1.1.min.js"></script>

<style type="text/css">
*{margin:0;padding:0;list-style-type:none;}
a,img{border:0;}
body{font-size:12px;background:#efeeeb;color:#666;}
a,a:hover{text-decoration:none; color:#666;}



/* selectssqj */
.selectssqj{position:relative;float:left;margin:0 10px;}
.selectssqj dt{height:28px;display:inline-block;border:1px solid #d2ccc4;background:#fcfcfb url(images/ico.gif) no-repeat 97px center;line-height:28px;font-weight:bold;padding-left:10px;cursor:pointer;90px;padding-right:12px;white-space:nowrap;text-overflow:ellipsis;overflow:hidden;position:relative;z-index:99;}
.selectssqj dt:hover,.selectssqj dt.cur{border:1px solid #409DFE;box-shadow:0 0 3px #409DFE;}
.selectssqj dd{position:absolute;left:0;top:29px;border:1px solid #d2ccc4;background:#fff;display:none;}
.selectssqj dd ul{padding:4px;104px;max-height:250px;overflow:auto;}
.selectssqj dd ul li a{line-height:28px;display:block;padding:0 8px;}
.selectssqj dd ul li a:hover{background:#f5f5f5;}
</style>
<script type="text/javascript">
$(function(){
   $(".selectssqj").each(function(){
      var s=$(this);
      var z=parseInt(s.css("z-index"));
      var dt=$(this).children("dt");
      var dd=$(this).children("dd");
      var _show=function(){dd.slideDown(200);dt.addClass("cur");s.css("z-index",z+1);};   //展开效果
      var _hide=function(){dd.slideUp(200);dt.removeClass("cur");s.css("z-index",z);};    //关闭效果
      dt.click(function(){dd.is(":hidden")?_show():_hide();});
      dd.find("a").click(function(){dt.html($(this).html());_hide();});     //选择效果（如需要传值，可自定义参数，在此处返回对应的“value”值 ）
      $("body").click(function(i){ !$(i.target).parents(".selectssqj").first().is(s) ? _hide():"";});
   })
})
</script>
</head>

<body>

<div class="demo">

   <dl class="selectssqj">
      <dt>请选择省</dt>
      <dd>
         <ul>
            <li><a href="#">12131</a></li>
            <li><a href="#">下拉2</a></li>
            <li><a href="#">下拉3</a></li>
            <li><a href="#">下拉4</a></li>
            <li><a href="#">下拉5</a></li>
            <li><a href="#">下拉6</a></li>
         </ul>
      </dd>
   </dl>
   <dl class="selectssqj">
      <dt>请选择市</dt>
      <dd>
         <ul>
            <li><a href="#">12131</a></li>
            <li><a href="#">下拉2</a></li>
            <li><a href="#">下拉3</a></li>
            <li><a href="#">下拉4</a></li>
            <li><a href="#">下拉5</a></li>
            <li><a href="#">下拉6</a></li>
         </ul>
      </dd>
   </dl>
   <dl class="selectssqj">
      <dt>请选择区</dt>
      <dd>
         <ul>
            <li><a href="#">下拉1</a></li>
            <li><a href="#">下拉2</a></li>
            <li><a href="#">下拉3</a></li>
            <li><a href="#">下拉4</a></li>
            <li><a href="#">下拉5</a></li>
            <li><a href="#">下拉6</a></li>
            <li><a href="#">下拉1</a></li>
            <li><a href="#">下拉2</a></li>
            <li><a href="#">下拉3</a></li>
            <li><a href="#">下拉4</a></li>
            <li><a href="#">下拉5</a></li>
            <li><a href="#">下拉6</a></li>
            <li><a href="#">下拉1</a></li>
            <li><a href="#">下拉2</a></li>
            <li><a href="#">下拉3</a></li>
            <li><a href="#">下拉4</a></li>
            <li><a href="#">下拉5</a></li>
            <li><a href="#">下拉6</a></li>
         </ul>
      </dd>
   </dl>
   
</div>
<br><br><br><br>
<div style="text-align:center;margin:300px 0; font:normal 14px/24px 'MicroSoft YaHei';">
<p>适用浏览器：IE8、360、FireFox、Chrome、Safari、Opera、傲游、搜狗、世界之窗.</p><br>
<p>来源：<a href="http://sc.chinaz.com/" target="_blank">站长素材</a></p>
</div>
</body>
</html>