获取当前天周一及周日

                function getWeek() {
                    //设置默认时间
                    var monday = new Date(),
                        sunday,
                        day = monday.getDay(), //星期
                        date = monday.getDate(); //日期
                    switch (day) {
                        case 1:
                            break;
                        case 0:
                            monday.setDate(date - 6);
                            break;
                        default:
                            monday.setDate(date - day + 1);
                    }
                    sunday = new Date(monday);
                    sunday.setDate(monday.getDate() + 6);
                    return { monday: monday, sunday: sunday };
                }