/**
     * 實現當前日期是當年的第幾周,再向前和向后推幾周
     * js數組保存當前日期的前后兩周(共五周的數據)
     * */
    var initSearchMajorChanges = function(){
        //實現當前日期是當年的第幾周,再向前和向后推幾周,js數組保存當前日期的前后兩周(共五周的數據)
        var vv='2015-02-07';
        var vNowDate=moment(new moment(vv).format("YYYY-MM-DD"));//.add('month',0).add('days',-1);
        var vWeekOfDay=moment(vNowDate).format("E");//算出這周的周幾
        var vWeekOfDays=7-vWeekOfDay-1;
        var vStartDate=moment(vNowDate).add('days',vWeekOfDays);
        var vEndDate=moment(vNowDate).add('days',-vWeekOfDay);
        var vStartDateNew=moment(vStartDate).add('days',7*$scope.gWeeks);
        var vEndDateNew=moment(vEndDate).add('days',-(7*$scope.gWeeks));
        //var vYearAndWeek=moment(vStartDate).format("YYYY")+'-'+moment(vStartDate).format("WW");
        searchMajorChanges(vStartDateNew,vEndDateNew);
    }