function editOrder(id,detail_id){
var url ="${pageContext.request.contextPath}/page/jsp/rental/add_edit_order.jsp?main_id="+id+"&detail_id="+detail_id;
window.location.href = url;
}
<script type="text/javascript"
src="${pageContext.request.contextPath }/page/common/jquery-1.9.1.min.js"></script>
<script type="text/javascript" language="javascript">
var main_id = "${param.main_id}";//订单主表id
var detail_id = "${param.detail_id}";//订单详细表id
</script>