easyui 获取 select 的值

<select class="easyui-combobox" id="timeSelect" panelHeight="auto" style="width:50px"><option value="1">日</option><option value="7">周</option><option value="30">月</option><option value="365">年</option></select>

var val2 = $("#timeSelect").combobox("getValue");

获取text:

var year=$('#YearOfBirthday').combobox('getText');