//獲取系統當前時間        var nowdate = new Date();        var y = nowdate.getFullYear();        var m = nowdate.getMonth()+1;        var d = nowdate.getDate();        var formatnowdate = y+'-'+m+'-'+d;        $("#enddate").datebox("setValue",formatnowdate);        //獲取系統前一周的時間        var oneweekdate = new Date(nowdate-7*24*3600*1000);        var y = oneweekdate.getFullYear();        var m = oneweekdate.getMonth()+1;        var d = oneweekdate.getDate();        var formatwdate = y+'-'+m+'-'+d;        $("#fdate").datebox("setValue",formatwdate);        //獲取系統前一個月的時間        nowdate.setMonth(nowdate.getMonth()-1);        var y = nowdate.getFullYear();        var m = nowdate.getMonth()+1;        var d = nowdate.getDate();        var formatwdate = y+'-'+m+'-'+d;        $("#fdate").datebox("setValue",formatwdate);轉載自：http://blog.csdn.net/james8870/article/details/53467183