var prop = 'DEN_2';

undefined


obj[prop];

Wed Oct 29 2014 00:00:00 GMT+0100 (Västeuropa, normaltid)


var property = prop;

undefined


$('#' + property).prop('class')

"hasDatepicker"


var str = obj[prop];

undefined


str

Wed Oct 29 2014 00:00:00 GMT+0100 (Västeuropa, normaltid)


str.toISOString();

"2014-10-28T23:00:00.000Z"


str.toISOString().substr(0,10);

"2014-10-28"


str.toDateString();

"Wed Oct 29 2014"


str + "01:00";

"Wed Oct 29 2014 00:00:00 GMT+0100 (Västeuropa, normaltid)01:00"


str + "02:00";

"Wed Oct 29 2014 00:00:00 GMT+0100 (Västeuropa, normaltid)02:00"


var oldDate = str;
undefined
var old_date = str;

undefined


old_date

Wed Oct 29 2014 00:00:00 GMT+0100 (Västeuropa, normaltid)


oldDate = undefined;

undefined


delete oldDate;

false


var new_date = new Date();

undefined


new_date

Fri Oct 31 2014 10:49:13 GMT+0100 (Västeuropa, normaltid)


new_date - old_date;

211753877
60 * 60 * 1000
3600000


old_date + 3600000

"Wed Oct 29 2014 00:00:00 GMT+0100 (Västeuropa, normaltid)3600000"


old_date.getDate();

29


old_date.setDate(old_date.getDate() + 1);

1414623600000


old_date

Thu Oct 30 2014 00:00:00 GMT+0100 (Västeuropa, normaltid)


old_date.toISOString();

"2014-10-29T23:00:00.000Z"