Jquery Easy UI Databox 用法

<script type="text/javascript">         $(function () {             $("#dd").datebox({                 required: "true",                 missingMessage: "必填项",                 formatter: function (date) {                     var y = date.getFullYear();                     var m = date.getMonth() + 1;                     var d = date.getDate();                     return y + "-" + (m < 10 ? ("0" + m) : m) + "-" + (d < 10 ? ("0" + d) : d) + "日";                 }             });         });     </script>

<input id="dd" class="easyui-datebox" editable="false" required="true"></input>