if((date_today == 31) && (month_today == 1||3||5||7||8||10||12)){
var jintian_day = 1;
}else if((date_today == 28) && (month_today==2)){
var jintian_day = 1;
}else if((date_today == 30) && (month_today==4||6||9||11)){
var jintian_day = 1;
}else{
var jintian_day = {$now_day}+1;
}