Bootstrap Date Picker - Auto close of Date1/ Check In and jump to Date2/ Check Out with 7days difference

In Bootstrap Date Picker, if you need to auto close a date select popup and auto jump to Date2/ Check Out popup with 7days difference, afterwards auto close the Check Out popup once selected. Use the below function.

/** Auto closing of In/Out POPUP on Select */
var enableInOutDatePicker = function (date1, date2) {
 
 // $( "#start_date" ).datepicker( { startDate:null, format:'dd/mm/yyyy', todayHighlight:true } );
 
 if ( (date1 =="" )  || (date1 == undefined) ) { var date1 = 'start_date'; }
 if ( (date2 =="" )  || (date2 == undefined) ) { var date1 = 'end_date'; }
 
 var nowTemp = new Date();
 var now = new Date(nowTemp.getFullYear(), nowTemp.getMonth(), nowTemp.getDate(), 0, 0, 0, 0);
 //alert(nowTemp);

 var checkin = $('#' + date1).datepicker({

     beforeShowDay: function (date) {
         return date.valueOf() >= now.valueOf();
     }
 }).on('changeDate', function (ev) {
     if (ev.date.valueOf() > checkout.date.valueOf()) {
         var newDate = new Date(ev.date);
         newDate.setDate(newDate.getDate() + 7);
         //alert(newDate);
         checkout.setValue(newDate);
         //checkout.setDate(newDate);
         checkout.update();
     }
     checkin.hide();
     $('#' + date2).focus();
 }).data('datepicker');

 var checkout = $('#' + date2).datepicker({
     beforeShowDay: function (date) {
         return date.valueOf() > checkin.date.valueOf();
     }
 }).on('changeDate', function (ev) {
     checkout.hide();
 }).data('datepicker');
};
/** Auto closing of In/Out POPUP on Select */