//var DateDD;
var RetDDMMYY;
var ReDay;
var Type;
var calendarIdentity;

function showCalender(type)
{	
    if(type=="D")
    {
 
        //showCalendarControl(document.Frm_Search.txt_ChekinDate,document.Frm_Search.HDayMonth,"Dep",document.Frm_Search.txt_ChekOut,document.Frm_Search.HDayMonthRet);
        calendarIdentity = 'txt_ChekinDate';          
        showCalendarControl(document.getElementById('txt_ChekinDate'),document.getElementById('HDayMonth'),"Dep",document.getElementById('txt_ChekOut'),document.getElementById('HDayMonthRet'));
    }
    else
    {
        //showCalendarControl(document.Frm_Search.txt_ChekOut,document.Frm_Search.HDayMonthRet);
        calendarIdentity = 'txt_ChekOut';
        showCalendarControl(document.getElementById('txt_ChekOut'),document.getElementById('HDayMonthRet'));
    }
}
function getDateString(day,mon,year)
	{
		var dateString="";
		if(mon<=9 && day<=9)
		{
   		dateString ="0"+day+"/"+"0"+mon+"/"+year; //day+"-"+
		}
		else if(mon<=9 && day>9)
		{
    	dateString =day+"/"+"0"+mon+"/"+year; //day+"-"+
		}
		else if(mon>9 && day<=9)
		{
   		dateString ="0"+day+"/"+mon+"/"+year; //day+"-"+
		}
		else
		{
		dateString =day+"/"+mon+"/"+year;
		}
		return dateString;
	}
function getDayString(gDateValue)
	{
		if(gDateValue=="0")
		{
		dayName="Sun"
		}
		else if(gDateValue=="1")
		{
		dayName="Mon"
		}
		else if(gDateValue=="2")
		{
		dayName="Tue"
		}
		else if(gDateValue=="3")
		{
		dayName="Wed"
		}
		else if(gDateValue=="4")
		{
		dayName="Thu"
		}
		else if(gDateValue=="5")
		{
		dayName="Fri"
		}
		else if(gDateValue=="6")
		{
		dayName="Sat"
		}
		return dayName;

	}
function GetMonth(mon)
{
switch(mon)
	{
	case 0: return "JAN"; break;
	case 1: return "FEB"; break;
	case 2: return "MAR"; break;
	case 3: return "APR"; break;
	case 4: return "MAY"; break;
	case 5: return "JUN"; break;
	case 6: return "JUL"; break;
	case 7: return "AUG"; break;
	case 8: return "SEP"; break;
	case 9: return "OCT"; break;
	case 10: return "NOV"; break;
	case 11: return "DEC"; 
	}
}
function positionInfo(object) {

  var p_elm = object;

  this.getElementLeft = getElementLeft;
  function getElementLeft() {
    var x = 0;
    var elm;
    if(typeof(p_elm) == "object"){
      elm = p_elm;
    } else {
      elm = document.getElementById(p_elm);
    }
    while (elm != null) {
      x+= elm.offsetLeft;
      elm = elm.offsetParent;
    }
    return parseInt(x);
  }

  this.getElementWidth = getElementWidth;
  function getElementWidth(){
    var elm;
    if(typeof(p_elm) == "object"){
      elm = p_elm;
    } else {
      elm = document.getElementById(p_elm);
    }
    return parseInt(elm.offsetWidth);
  }

  this.getElementRight = getElementRight;
  function getElementRight(){
    return getElementLeft(p_elm) + getElementWidth(p_elm);
  }

  this.getElementTop = getElementTop;
  function getElementTop() {
    var y = 0;
    var elm;
    if(typeof(p_elm) == "object"){
      elm = p_elm;
    } else {
      elm = document.getElementById(p_elm);
    }
    while (elm != null) {
      y+= elm.offsetTop;
      elm = elm.offsetParent;
    }
    return parseInt(y);
  }

  this.getElementHeight = getElementHeight;
  function getElementHeight()
	{
    var elm;
    if(typeof(p_elm) == "object")
	{
      elm = p_elm;
    }
	else
	{
      elm = document.getElementById(p_elm);
    }
    return parseInt(elm.offsetHeight);
  }

  this.getElementBottom = getElementBottom;
  function getElementBottom(){
    return getElementTop(p_elm) + getElementHeight(p_elm);
  }
}

function CalendarControl() 
{

  var calendarId = 'CalendarControl';
  var currentYear = 0;
  var currentMonth = 0;
  var currentDay = 0;

  var selectedYear = 0;
  var selectedMonth = 0;
  var selectedDay = 0;

  var months = ['January','February','March','April','May','June','July','August','September','October','November','December'];
  var dateField = null;

  
  function getProperty(p_property)
	{
    var p_elm = calendarId;
    var elm = null;

    if(typeof(p_elm) == "object")
		{
     	 elm = p_elm;
    	} else 
		{
      	elm = document.getElementById(p_elm);
    	}
    
	if (elm != null)
		{
      	if(elm.style)
			{
        	elm = elm.style;
        	if(elm[p_property])
				{
          		return elm[p_property];
        		}
				else 
				{
          		return null;
       			}
      		} 
			else 
			{
        	return null;
      		}
    	}
  }

  function setElementProperty(p_property, p_value, p_elmId)
		{
    	var p_elm = p_elmId;
    	var elm = null;

    	if(typeof(p_elm) == "object")
			{
      		elm = p_elm;
    		} 
			else 
			{
      		elm = document.getElementById(p_elm);
    		}
    	
		if((elm != null) && (elm.style != null))
			{
      		elm = elm.style;
      		elm[ p_property ] = p_value;
    		}
 		 }

  function setProperty(p_property, p_value) 
	{
    setElementProperty(p_property, p_value, calendarId);
  	}

  function getDaysInMonth(year, month) 
	{
    return [31,((!(year % 4 ) && ( (year % 100 ) || !( year % 400 ) ))?29:28),31,30,31,30,31,31,30,31,30,31][month-1];
 	}

  function getDayOfWeek(year, month, day) 
	{
    var date = new Date(year,month-1,day)
    return date.getDay();
  	}

  this.clearDate = clearDate;
  function clearDate() 
	{
    dateField.value = '';
    hide();
  	}

  this.setDate = setDate;
  function setDate(year, month, day) 
	{
    if (dateField) 
		{
      	if (month < 10) 
			{
				month = month;
			}
      if (day < 10) 
		{
		day =day;
		}
	mon=parseInt(month);
	var MMM=GetMonth(mon-1);
	var dateString=getDateString(day,mon,year);
	dateField.value = dateString;
	var gDate=new Date(year,mon-1,day);
	var gDateValue=gDate.getDay();
	var dayName=getDayString(gDateValue);
	
	if(Type=="Dep")
	{
		var gDate1=new Date(year,mon-1,day+1);
		dateString1=getDateString(gDate1.getDate(),gDate1.getMonth()+1,gDate1.getFullYear());
		document.getElementById('txt_ChekOut').value=dateString1  //modified
	} 
		
	 hide();
    }
    if(document.getElementById('txt_ChekOut').value != '')
    {
        document.getElementById('cbo_NoOfNights').value = dateDiff(document.getElementById('txt_ChekinDate').value,document.getElementById('txt_ChekOut').value);
    }
    return;
 }

  this.changeMonth = changeMonth;
  function changeMonth(change) 
	{
    currentMonth += change;
    currentDay = 0;
    if(currentMonth > 12) 
		{
      	currentMonth = 1;
      	currentYear++;
    	} 
		else if(currentMonth < 1)
		{
      	currentMonth = 12;
      	currentYear--;
    	}

    calendar = document.getElementById(calendarId);
    calendar.innerHTML = calendarDrawTable();
  }

  this.changeYear = changeYear;
  function changeYear(change) 
	{
    currentYear += change;
    currentDay = 0;
    calendar = document.getElementById(calendarId);
    calendar.innerHTML = calendarDrawTable();
  	}

  function getCurrentYear() 
	{
//    var year = new Date().getFullYear();
	var year = new Date().getFullYear();
    if(year < 1900) year += 1900;
    return year;
  	}

  function getCurrentMonth() 
	{
    return new Date().getMonth() + 1;
  	} 

  	function getCurrentDay() 
		{
    	return new Date().getDate();
  		}

  function calendarDrawTable() 
	{

    var dayOfMonth = 1;
    var validDay = 0;
    var startDayOfWeek = getDayOfWeek(currentYear, currentMonth, dayOfMonth);
	
    var daysInMonth = getDaysInMonth(currentYear, currentMonth);

    var css_class = null; //CSS class for each day

    var table = "<table cellspacing='0' cellpadding='0' border='0'>";
    table = table + "<tr class='header'>";
    table = table + "  <td colspan='2' class='previous'><a href='javascript:changeCalendarControlMonth(-1);'>&lt;</a><a href='javascript:changeCalendarControlMonth(-1);'>&lt;</a></td>";
    table = table + "  <td colspan='3' class='title'>" + months[currentMonth-1] + "<br>" + currentYear + "</td>";
    table = table + "  <td colspan='2' class='next'><a href='javascript:changeCalendarControlMonth(1);'>&gt;</a><a href='javascript:changeCalendarControlMonth(1);'>&gt;</a></td>";  //<a href='javascript:changeCalendarControlYear(1);'>
    table = table + "</tr>";
    table = table + "<tr bgcolor=lightblue><th bgcolor=red>S</th><th>M</th><th>T</th><th>W</th><th>T</th><th>F</th><th>S</th></tr>";

    for(var week=0; week < 6; week++) 
		{
      	table = table + "<tr>";
      	for(var dayOfWeek=0; dayOfWeek < 7; dayOfWeek++)
			 {
        	if(week == 0 && startDayOfWeek == dayOfWeek) 
				{
          		validDay = 1;
        		} 
				else if (validDay == 1 && dayOfMonth > daysInMonth) 
				{
          		validDay = 0;
        		}

        	if(validDay) 
				{
         		 if (dayOfMonth == selectedDay && currentYear == selectedYear && currentMonth == selectedMonth) 
					{
            		css_class = 'current';
          			} 
					else if (dayOfWeek == 0 || dayOfWeek == 6) 
						{
            			css_class = 'weekend';
          				} 
						else 
						{
           				 css_class = 'weekday';
          				}
          				
          				
					var DMY=new Date();
					
					if(calendarIdentity != null)
					{
					    //alert(calendarIdentity);
					    if(calendarIdentity == 'txt_ChekinDate')
					    {
				            var perDate=new Date(DMY.getFullYear(),DMY.getMonth(),DMY.getDate());
			                var CurDate= new Date(currentYear,currentMonth-1,dayOfMonth);
			                var LastDate=new Date(DMY.getFullYear(),DMY.getMonth()+11,DMY.getDate());
			            }
			            else if(calendarIdentity == 'txt_ChekOut')
			            {
				            var selectedDate = document.getElementById('txt_ChekinDate').value;
				            var selectedDateParts = selectedDate.split("/");
                            var selectedMonth = parseInt(selectedDateParts[1],10);
      	                    var selectedDay = parseInt(selectedDateParts[0],10);
      	                    var selectedYear = parseInt(selectedDateParts[2],10);
       	                    perDate = new Date(selectedYear,selectedMonth,selectedDay+1);
       	                    CurDate= new Date(currentYear,currentMonth,dayOfMonth);
       	                    LastDate = new Date(selectedYear,selectedMonth+11,selectedDay);
       	                    css_class = 'weekday';
			            }
			        }
					
					if(CurDate<perDate || CurDate>LastDate)
						{
							
						
	          			table = table + "<td><a class='"+css_class+"'><strike><font color='#c1c1c1'>"+dayOfMonth+"</font></strike></a></td>";
						}
						else
						{
							
							table = table + "<td><a class='"+css_class+"' href=\"javascript:setCalendarControlDate("+currentYear+","+currentMonth+","+dayOfMonth+")\">"+dayOfMonth+"</a></td>";
						}
          				dayOfMonth++;
        			} 
					else
					{
          			table = table + "<td class='empty'>&nbsp;</td>";
 		   			}
      			}
      		table = table + "</tr>";
    		}
		   table = table + "<tr class='header'><th colspan='7' style='padding: 3px;'><a href='javascript:hideCalendarControl();'><font color=black><b>Close</b></font></a></th></tr>"; //<a href='javascript:clearCalendarControl();'>Clear</a>
    	   table = table + "</table>";
		   return table;
  		}

	this.show = show;
	function show(field) 	
		{
		can_hide = 0;

		if (dateField == field) 
			{
			return;
			} 
			else 
			{
    		dateField = field;
   			 }

		if(dateField) 	
		{
      	try {
        	var dateString = new String(dateField.value);
        	var dateParts = dateString.split("/");
        	selectedMonth = parseInt(dateParts[1],10);
        	selectedDay = parseInt(dateParts[0],10);
        	selectedYear = parseInt(dateParts[2],10);
			//alert("selectedMonth"+selectedMonth);
			//alert("selectedYear"+selectedYear);
			//selectedMonth = parseInt(dateParts[0],10);
        	//selectedDay = parseInt(dateParts[1],10);
        	//selectedYear = parseInt(dateParts[2],10);
      		} catch(e) {}
    	}

    if (!(selectedYear && selectedMonth && selectedDay)) 
	{
      selectedMonth = getCurrentMonth();
      selectedDay = getCurrentDay();
      selectedYear = getCurrentYear();
    }

    currentMonth = selectedMonth;
    currentDay = selectedDay;
    currentYear = selectedYear;
    if(document.getElementById){

      calendar = document.getElementById(calendarId);
      calendar.innerHTML = calendarDrawTable(currentYear, currentMonth);

      setProperty('display', 'block');

      var fieldPos = new positionInfo(dateField);
      var calendarPos = new positionInfo(calendarId);

      var x = fieldPos.getElementLeft();
      var y = fieldPos.getElementBottom();

      setProperty('left', x + "px");
      setProperty('top', y + "px");
 
      if (document.all) {
        setElementProperty('display', 'block', 'CalendarControlIFrame');
        setElementProperty('left', x + "px", 'CalendarControlIFrame');
        setElementProperty('top', y + "px", 'CalendarControlIFrame');
        setElementProperty('width', calendarPos.getElementWidth() + "px", 'CalendarControlIFrame');
        setElementProperty('height', calendarPos.getElementHeight() + "px", 'CalendarControlIFrame');
      }
    }
  }

  this.hide = hide;
  function hide() {
    if(dateField) {
      setProperty('display', 'none');
      setElementProperty('display', 'none', 'CalendarControlIFrame');
      dateField = null;
    }
  }

  this.visible = visible;
  function visible() {
    return dateField
  }

  this.can_hide = can_hide;
  var can_hide = 0;
}

var calendarControl = new CalendarControl();

function showCalendarControl(DDMMYY,DD,type,retddmmyy,retday) // 
{

	RetDDMMYY=retddmmyy;
	RetDay=retday;
	Type=type;
	DateDD=DD;
  // MMYY.onblur = hideCalendarControl;
  calendarControl.show(DDMMYY);
  
}

function clearCalendarControl() {
  calendarControl.clearDate();
}

function hideCalendarControl() 
{
  if (calendarControl.visible()) 
	{
    calendarControl.hide();
  	}
}

function setCalendarControlDate(year, month, day)
 {
  calendarControl.setDate(year, month, day);
}

function changeCalendarControlYear(change) 
{
  calendarControl.changeYear(change);
}

function changeCalendarControlMonth(change) 
	{
  	calendarControl.changeMonth(change);
	}

document.write("<iframe id='CalendarControlIFrame' frameBorder='0' scrolling='no'></iframe>");
document.write("<div id='CalendarControl'></div>");

//src='javascript:false;'



 
     function dateDiff(strDate1,strDate2)
    {
       strDate1 = strDate1.split("/"); 
starttime = new Date(strDate1[2],strDate1[1]-1,strDate1[0]); 
starttime = new Date(starttime.valueOf()); 

//End date split to UK date format 
strDate2 = strDate2.split("/"); 
endtime = new Date(strDate2[2],strDate2[1]-1,strDate2[0]); 
endtime = new Date(endtime.valueOf()); 

var diff=(endtime-starttime)/(1000*60*60*24);
return diff;
    }
    
    
 /*   function dateFormat(strDate)
    {
        var dateparts = strDate.split("/");
        var mm = parseInt(dateparts[1],10);
        var dd = parseInt(dateparts[0],10);
        var yy = parseInt(dateparts[2],10);
        var retDate =  new Date(yy,mm,dd);
        return retDate;
    
    }*/
    
 
    

//===========================