/**

     * 获取页面路径参数值

     */

    function getParams(key) {

        var result = {};

        var paramStr = encodeURI(window.document.location.search);

        if (paramStr) {

            paramStr = paramStr.substring(1);

            var params = paramStr.split('&');

            for (var p = 0; p < params.length; p++) {

                result[params[p].split('=')[0]] = unescape(params[p].split('=')[1]);

            }

        }

        return result[key];

    }