js-获取url中传递的参数

(function ($) {
        $.getUrlParam = function (name) {
            var reg = new RegExp("(^|&)" + name + "=([^&]*)(&|$)");
            var r = window.location.search.substr(1).match(reg);
            if (r != null) return decodeURIComponent(r[2]);
            return null;
        }
    })(jQuery);

栗子：window.location.href="price.jsp?total="+sum+"&deviceId="+deviceId;

total = $.getUrlParam('total');
deviceId = $.getUrlParam('deviceId');