//获取URL中的参数

        function request(paras) {

            var url = location.href.replace('#', '');

            var paraString = url.substring(url.indexOf("?") + 1, url.length).split("&");

            var paraObj = {}

            for (i = 0; j = paraString[i]; i++) {

                paraObj[j.substring(0, j.indexOf("=")).toLowerCase()] = j.substring(j.indexOf("=") + 1, j.length);

            }

            var returnValue = paraObj[paras.toLowerCase()];

            if (typeof (returnValue) == "undefined") {

                return "";

            } else {

                return returnValue;

            }

        }