<input class="easyui-validatebox textbox" type="text" onFocus="onfocustime(this)"
name="familyBirthdayF"/>
function onfocustime(obj) { //obj就是<input>
var myDate = new Date();
var date = myDate.toLocaleDateString();
obj.setAttribute("value",date); //加属性
WdatePicker();
}