用jquery得到select选中的值

<select class="pushtype" name="push_type" onchange="pushType(this)">
    <option value="0">系統功能類</option>
    <option value="1" selected="&quot;selected&quot;">營銷活動類</option>
</select>

function pushType(e) {
    alert($('.pushtype option:selected').val());
    alert($('.pushtype option:selected').text());
}