JavaScript compares days between two dates

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$ (function () { var starttime = transdate ("2014-09-30 15:53:00"); var endtime = transdate ("2014-10-03 15:53:00"); var now = "'" +new Date (). GetTime () + "'"; var nowtime = now.substr (1,10); if (Nowtime > Endtime) { $ ('. Meeting_time '). HTML (' show closed '); }else if (Nowtime < StartTime) { var day = get_date_different (nowtime,starttime); $ ('. Meeting_time '). HTML (' from the beginning of the show and ' +day+ ' Day '); }else{ $ ('. Meeting_time '). HTML (' Show in progress '); } }); function Get_date_different (date_1,date_2) { var days= date_2-date_1; var time = parseint (days/(60 * 60 * 24)); return time; } function TransDate (endtime) { var date=new date (); Date.setfullyear (endtime.substring (0,4)); Date.setmonth (endtime.substring (5,7)-1); Date.setdate (endtime.substring (8,10)); Date.sethours (endtime.substring (11,13)); Date.setminutes (endtime.substring (14,16)); Date.setseconds (endtime.substring (17,19)); Return Date.parse (Date)/1000; }