var Class = {
  create: function(param) {
    var cls = function() {
      if (this.initialize)
        this.initialize();
    };
    cls.prototype = param;
    if (cls.initialize)
      cls.initialize();
    return cls;
  }
}

var Calendar = Class.create({ 
  initialize: function(){
    this.calX = 0;
    this.calY = 0;
    this.dropYearMonth = null;
    this.dropDay = null;
    this.dropYearMonthNext = null;
    this.dropDayNext = null;
    this.currentMonth = 0;
  },

  dayHeaders:  new Array('M','T','W','T','F','S','S'),
  months:      new Array('Nov-2014','Dec-2014','Jan-2015','Feb-2015','Mar-2015','Apr-2015','May-2015','Jun-2015','Jul-2015','Aug-2015','Sep-2015','Oct-2015','Nov-2015','Dec-2015','Jan-2016','Feb-2016','Mar-2016','Apr-2016','May-2016','Jun-2016','Jul-2016','Aug-2016','Sep-2016','Oct-2016','Nov-2016','Dec-2016','Jan-2017','Feb-2017','Mar-2017','Apr-2017','May-2017','Jun-2017','Jul-2017','Aug-2017','Sep-2017','Oct-2017'),
  monthDates:  new Array('201411','201412','201501','201502','201503','201504','201505','201506','201507','201508','201509','201510','201511','201512','201601','201602','201603','201604','201605','201606','201607','201608','201609','201610','201611','201612','201701','201702','201703','201704','201705','201706','201707','201708','201709','201710'),
  monthMatrix: new Array(
    new Array(0,0,0,0,0,101,102,103,104,105,106,107,108,209,110,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,0,0,0,0,0,0,0),
    new Array(1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,0,0,0,0,0,0,0,0,0,0,0),
    new Array(0,0,0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,0,0,0,0,0,0,0,0),
    new Array(0,0,0,0,0,0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,0,0,0,0,0,0,0,0),
    new Array(0,0,0,0,0,0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,0,0,0,0,0),
    new Array(0,0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,0,0,0,0,0,0,0,0,0,0),
    new Array(0,0,0,0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,0,0,0,0,0,0,0),
    new Array(1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,0,0,0,0,0,0,0,0,0,0,0,0),
    new Array(0,0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,0,0,0,0,0,0,0,0,0),
    new Array(0,0,0,0,0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,0,0,0,0,0,0),
    new Array(0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,0,0,0,0,0,0,0,0,0,0,0),
    new Array(0,0,0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,0,0,0,0,0,0,0,0),
    new Array(0,0,0,0,0,0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,0,0,0,0,0,0),
    new Array(0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,0,0,0,0,0,0,0,0,0,0),
    new Array(0,0,0,0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,0,0,0,0,0,0,0),
    new Array(1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,0,0,0,0,0,0,0,0,0,0,0,0,0),
    new Array(0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,0,0,0,0,0,0,0,0,0,0),
    new Array(0,0,0,0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,0,0,0,0,0,0,0,0),
    new Array(0,0,0,0,0,0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,0,0,0,0,0),
    new Array(0,0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,0,0,0,0,0,0,0,0,0,0),
    new Array(0,0,0,0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,0,0,0,0,0,0,0),
    new Array(1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,0,0,0,0,0,0,0,0,0,0,0),
    new Array(0,0,0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,0,0,0,0,0,0,0,0,0),
    new Array(0,0,0,0,0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,0,0,0,0,0,0),
    new Array(0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,0,0,0,0,0,0,0,0,0,0,0),
    new Array(0,0,0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,0,0,0,0,0,0,0,0),
    new Array(0,0,0,0,0,0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,0,0,0,0,0),
    new Array(0,0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,0,0,0,0,0,0,0,0,0,0,0,0),
    new Array(0,0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,0,0,0,0,0,0,0,0,0),
    new Array(0,0,0,0,0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,0,0,0,0,0,0,0),
    new Array(1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,0,0,0,0,0,0,0,0,0,0,0),
    new Array(0,0,0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,0,0,0,0,0,0,0,0,0),
    new Array(0,0,0,0,0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,0,0,0,0,0,0),
    new Array(0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,0,0,0,0,0,0,0,0,0,0),
    new Array(0,0,0,0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,0,0,0,0,0,0,0,0),
    new Array(0,0,0,0,0,0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,0,0,0,0,0) 
  ),

  handleSyncDates: function(){
    this.fixDays(this.dropYearMonth,this.dropDay);
   
	if( this.dropYearMonthNext && this.dropDayNext  && this.nights )
    {
      if( this.nights>0 )
        this.handleSyncDatesF();
      else
        this.handleSyncDatesB();
    }
  },

  fixDays: function(dropYearMonth, dropDay){
     var day = $(dropDay).val();

     var mday_index = 0;
     $(this.monthDates).each(function(index,value){ if( value==$(dropYearMonth).val() ) mday_index=index; });
     var mday = this.monthMatrix[mday_index];
     var min = 31;
     $(mday).each(function(index,value){ if( value>0 && value<min ) min=value; });
     var max = 1;
     $(mday).each(function(index,value){ if( value>0 && value<32 ) max=value; });
     if( day<min ) $(dropDay).val(min);
     if( day>max ) $(dropDay).val(max);
  },

  handleSyncDatesF: function(){
    var day = parseInt($(this.dropDay).val());
    var nights = this.nights;
    for(var i=0; i<this.monthDates.length; i++)
      if( this.monthDates[i] == $(this.dropYearMonth).val() )
      {
        var mday = this.monthMatrix[i];
        for(var j=0; j<mday.length; j++)
        {
          if(mday[j] == day)
          {
            while(nights>0)
            {
              j++;
              if( j==mday.length || mday[j]==0 )
              {
                i++;
                if( i==this.monthDates.length )
                {
                  i--;
                  j--;
                  break;
                }
                else
                {
                  mday = this.monthMatrix[i];
                  j = 0;
                  while(j<mday.length && mday[j]==0) j++;
                }
              }
              nights --;
            }
            $(this.dropYearMonthNext).val(this.monthDates[i]);
            $(this.dropDayNext).val(mday[j]);
			var strMonth = this.monthDates[i];
			
			if(mday[j]<10)
				var strDay = "0"+mday[j];
			else
				var strDay = mday[j];
			$(this.dropfinalnextyear).val(strDay+'/'+strMonth.substring(4,6)+'/'+strMonth.substring(0,4));
            return;
          }
        }
      }
  },
 calculateDay: function(t1,t2){
        var one_day=1000*60*60*24; 	
        var x=t1.split("/");     
        var y=t2.split("/");
        var date1=new Date(x[2],(x[1]-1),x[0]);
  
        var date2=new Date(y[2],(y[1]-1),y[0])
        var month1=x[1]-1;
        var month2=y[1]-1;
       _Diff=Math.ceil((date2.getTime()-date1.getTime())/(one_day)); 
	   return _Diff;
 },
  handleSyncDatesB: function(){
    var day = parseInt($(this.dropDay).val());
    var nights = this.nights;
	var ye1 = $(this.dropYearMonth).val().substr(0,4);
	var mo1 = $(this.dropYearMonth).val().substr(4);
	var da1 = $(this.dropDay).val();
	var ye2 = $(this.dropYearMonthNext).val().substr(0,4);
	var mo2 = $(this.dropYearMonthNext).val().substr(4);
	var da2 = $(this.dropDayNext).val();
	
	var getNights = this.calculateDay(da2+"/"+mo2+"/"+ye2,da1+"/"+mo1+"/"+ye1);
	$("#nights").val(getNights);
	return;
	//alert($(this.dropYearMonth).val().substr(0,4));
   /* for(var i = this.monthDates.length-1; i>=0; i--)
      if( this.monthDates[i] == $(this.dropYearMonth).val() )
      {
        var mday = this.monthMatrix[i];
        for(var j=mday.length-1; j>=0; j--)
        {
          if(mday[j] == day)
          {
            while(nights<0)
            {
              j--;
              if( j<0 || mday[j]==0 || mday[j]>31 )
              {
                i--;
                if( i==-1 )
                {
                  i++;
                  j++;
                  break;
                }
                else
                {
                  mday = this.monthMatrix[i];
                  j = mday.length-1;
                  while(j>=0 && mday[j]==0) j--;
                }
              }
              nights ++;
            }
            $(this.dropYearMonthNext).val(this.monthDates[i]);
            $(this.dropDayNext).val(mday[j]);

            return;
          }
        }
      }*/
  },

  syncDates: function(dropYearMonthObj, dropDayObj, dropYearMonthNextObj, dropDayNextObj, days){
    this.dropYearMonth = dropYearMonthObj;
    this.dropDay = dropDayObj;
    this.dropYearMonthNext = dropYearMonthNextObj;
    this.dropDayNext = dropDayNextObj;
    this.nights = days;
	
    this.handleSyncDates();
  },

  move_month: function(dir){
    if (dir==1) { ++this.currentMonth; this.draw_calendar(); }
    else { --this.currentMonth; this.draw_calendar(); }
  },

  handle_click: function(isoIn){
    isoIn = "" + isoIn;
    
    $(this.dropDay).val(parseInt(isoIn.substring(6,8),10));
    $(this.dropYearMonth).val(isoIn.substring(0,6));
    $(this.dropfinalyear).val(isoIn.substring(6,8)+"/"+ isoIn.substring(4,6)+"/"+ isoIn.substring(0,4));

    this.handleSyncDates();
    this.hide_calendar();
  },

  open_cal1: function(dropYearMonthObj, dropDayObj){
    this.dropYearMonth = dropYearMonthObj;
    this.dropDay = dropDayObj;
    this.dropYearMonthNext = null;
    this.dropDayNext = null;
    this.nights = 0;
    for (i=0;i<this.monthDates.length;i++)
      if ($(this.dropYearMonth).val()==this.monthDates[i])
        this.currentMonth = i;
    this.draw_calendar();
  },
  open_cal2: function(dropYearMonthObj, dropDayObj,dropfinalyearObj, dropYearMonthNextObj, dropDayNextObj, dropfinalNextyearObj, days){
    this.dropYearMonth = dropYearMonthObj;
    this.dropDay = dropDayObj;
    this.dropfinalyear=dropfinalyearObj;
    this.dropYearMonthNext = dropYearMonthNextObj;
    this.dropDayNext = dropDayNextObj;
	this.dropfinalnextyear=dropfinalNextyearObj;
    this.nights = days;
    for (i=0;i<this.monthDates.length;i++)
      if ($(this.dropYearMonth).val()==this.monthDates[i])
        this.currentMonth = i;
    this.draw_calendar();
  },

  hide_calendar: function(){
    this.dropYear = null;
    this.dropMonth = null;
    this.dropYearMonth = null;
    this.dropDay = null;
    this.dropYearMonthNext = null;
    this.dropDayNext = null;
    $(this.element).hide();
  },

  draw_calendar: function(){
    var table_top;
    var print_string;
    var tmpHtml = "";
    var month = this.currentMonth;

    table_top = '<table cellpadding="0" cellspacing="0" border="0" class="calMain"><tr>\n';

    if(month>0)
      tmpHtml = '<a href="javascript:myCalendar.move_month(-1);" class="calNextPrev">&lt;&lt;</a>';
    else
      tmpHtml = '&nbsp;';

    table_top += '<td class="calNextPrev">' + tmpHtml + '</td>\n';

    table_top += '<td colspan="5" class="calTextTitle">' + this.months[month] + '</td>\n';

    if(month<(this.monthMatrix.length-1))
      tmpHtml = '<a href="javascript:myCalendar.move_month(1);" class="calNextPrev">&gt;&gt;</a>';
    else
      tmpHtml = '&nbsp;';

    table_top += '<td class="calNextPrev">' + tmpHtml + '</td>\n';

    table_top += '</tr>\n';
    table_top += '<tr><td colspan="7" class="calSeparator"></td></tr>\n';
    table_top += '<tr>\n';
    for (dh=0;dh<this.dayHeaders.length;dh++)
      table_top += '<td class="calDaysChar">'+this.dayHeaders[dh]+'</td>';
    table_top += '</tr>\n';
    table_top += '<tr><td colspan="7" class="calSeparator"></td></tr>\n';

    print_string = '<tr>';

    thisMonth = this.monthMatrix[month];
    for (rw=0;rw<42;rw++)
    {
      if (rw!=0 && rw!=(thisMonth.length-1) && (rw%7==0))
        print_string += "</tr>\n<tr>";

      if (thisMonth[rw]!=0)
      {
        var box = "";
        if( this.monthDates[month]==$(this.dropYearMonth).val() && ($(this.dropDay).val()==thisMonth[rw] || $(this.dropDay).val()==(thisMonth[rw]-200)) ) box = " style='border:1px solid black'";
        var clickDate = (this.monthDates[month]*100 + thisMonth[rw]);
        if (thisMonth[rw]>200)
          print_string += '<td class="calDayCur"'+box+'>' + thisMonth[rw]%200 + '</td>';
          //print_string += '<td class="calDayCur"'+box+'><a class="calDayCur" href="javascript:myCalendar.handle_click(' + (clickDate-200) + ');">' + thisMonth[rw]%200 + '</a></td>';
        else if (thisMonth[rw]>100)
          print_string += '<td class="calDay">' + thisMonth[rw]%100 + '</td>';
        else
          print_string += '<td class="calDay"'+box+'><a class="calDay" href="javascript:myCalendar.handle_click('
                       + clickDate + ');">' + thisMonth[rw] + '</a></td>';
      }
      else
        print_string += '<td class="calDay">&nbsp;</td>';
    }
    print_string += '</tr>\n';
    print_string += '<tr><td colspan="7" class="calBottom"><a class="calClose" href="javascript:myCalendar.hide_calendar();">close</a></td></tr>\n';
    print_string += '</table>\n';

    this.element.html(table_top + print_string);
    $(this.element).css({'left':this.calX+'px', 'top':this.calY+'px'});
    $(this.element).show();
  }
});


var myCalendar = new Calendar();

function openCal1(obj)
{
  myCalendar.element = $('#calendar');
  var pos = $('#hbook_cal1').offset();
  myCalendar.calX=pos.left;
  myCalendar.calY=pos.top-235;
  myCalendar.open_cal2($('#date1m'), $('#date1d'), $('#datef'), $('#date2m'), $('#date2d'), $('#datef1'), $("#nights").val());
}

function openCal2(obj)
{
  myCalendar.element = $('#calendar');
  var pos = $('#hbook_cal2').offset();
  myCalendar.calX = pos.left;
  myCalendar.calY = pos.top-235;
  myCalendar.open_cal2($('#date2m'), $('#date2d'),$('#datef1'), $('#date1m'), $('#date1d'),$('#datef'), -$("#nights").val());
}

function calcCal1(){
  myCalendar.element = $('#calendar');
  myCalendar.syncDates($('#date1m'), $('#date1d'),  $('#date2m'), $('#date2d'), $("#nights").val());
}
function calcCal2()
{
  myCalendar.element = $('#calendar');
  myCalendar.syncDates($('#date2m'), $('#date2d'),  $('#date1m'), $('#date1d'), -$("#nights").val());
}
function tr_openCal1(obj)
{
  myCalendar.element = $('#calendar');
  //alert($(obj));
 var pos = $('#tr_cal1').offset();
  myCalendar.calX=pos.left;
  myCalendar.calY=pos.top;
  //myCalendar.open_cal1($('tr_date1m'), $('tr_date1d'));
  myCalendar.open_cal2($('#tr_date1m'), $('#tr_date1d'), $('#tr_date2m'), $('#tr_date2d'), 1);
}
function tr_openCal2(obj)
{
  myCalendar.element = $('#calendar');
  var pos = $('#tr_cal2').offset();
  myCalendar.calX=pos.left;
  myCalendar.calY=pos.top;
  myCalendar.open_cal1($('#tr_date2m'), $('#tr_date2d'));
}
function calcHotelCal1()
{
  myCalendar.syncDates($('#hbook_date1m'), $('#hbook_date1d'), $('#hbook_date2m'), $('#hbook_date2d'), $('#hbook_nights').val());
}
function calcHotelCal2()
{
  myCalendar.syncDates($('#hbook_date2m'), $('#hbook_date2d'), $('#hbook_date1m'), $('#hbook_date1d'), -$('#hbook_nights').val());
}