页面跳页面传值问题

<script type="text/javascript">
$(function () {
    $(".orderDetailSearch").click(function () {//根据class点击事件
        var n=$("#orderNum").html();//根据id获得div内容
        var uuid = $("#uuid").val();//获得input内容
        var openid = $("#openid").val();        
        window.location="${ct}/enterprise/checkInfoAction/checkInfo.do?appoint_order_num="+n+"&&uuid="+uuid+"&&openid="+openid;//跳转页面
    });

});
</script>

另一个页面超链接的值：uuid包含特殊字符“_”
不加单引号报错：identifier starts immediately after numeric literal

 var orderNum = ${param.appoint_order_num };  
 var uuid = '${param.uuid }';
 var openid = ${param.openid };