var hidVr;

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.setDate = setDate;
  function setDate(year, month, day) {

    if (dateField) {
      if (month < 10) {month =  month;}
      if (day < 10) {day =  day;}

      var dateString = month+"-"+day+"-"+year;
      dateField.value = dateString;
     //alert(document.getElementById("Hidden9").value);
  
     if(hidVr=='cal1')
     {
     
      var Chgday=day; 
      var ChgMonth=(month)-1;
      
//      if(ChgMonth==0)
//      {
//       month==11;
//       ChgMonth=11;
//      }
      var tmp=document.getElementById("DrpCheckinDate");
      tmp.options[tmp.selectedIndex].value;
      var temp1 = document.getElementById("DrpCheckin");
      temp1.options[temp1.selectedIndex].value;
      
      //document.getElementById("Hidden9").value=tmp.options[tmp.selectedIndex].text;
      //tmp.options[tmp.selectedIndex].text=Chgday;
      

       for(j=0;j<temp1.options.length;j++)
        {
        
           if(temp1.options[j].value==ChgMonth)
           {
             temp1.options[j].selected=true;
             Ckinmonth1();break;
           }
           else
           {
             
           }
       }
       for(i=0;i<tmp.options.length;i++)
        {
        //alert(tmp.options[i].text+" "+Chgday);
          if(tmp.options[i].text==Chgday) 
          {
            tmp.options[i].selected=true;break;
            
          }
          else
          {
          
          }
          
        }
     }
     if(hidVr=='cal2')
     {
      var Chgday=day; var ChgMonth=(month)-1;
//      if(ChgMonth==1)
//      {
//       month==11;
//       ChgMonth=11;
//      }
      var tmp=document.getElementById("DrpCheckoutDate");
      tmp.options[tmp.selectedIndex].value;
      var temp1 = document.getElementById("DrpCheckout");
      temp1.options[temp1.selectedIndex].value;
      
      //document.getElementById("Hidden9").value=tmp.options[tmp.selectedIndex].text;
      //tmp.options[tmp.selectedIndex].text=Chgday;
      

       for(j=0;j<temp1.options.length;j++)
        {
        
           if(temp1.options[j].value==ChgMonth)
           {
             temp1.options[j].selected=true;
             Ckoutmonth1();break;
           }
           else
           {
             
           }
       }
       for(i=0;i<tmp.options.length;i++)
        {
        //alert(tmp.options[i].text+" "+Chgday);
          if(tmp.options[i].text==Chgday) 
          {
            tmp.options[i].selected=true;break;
            
          }
          
        }
     }



      //var ChgMonth=month;
     // document.getElementById("DrpCheckin").options[document.getElementById("DrpCheckin").selectedIndex].value=ChgMonth;
  //  alert(document.getElementById("DrpCheckin").options[document.getElementById("DrpCheckin").selectedIndex].value);
      
     // document.getElementById("DrpCheckoutDate").options[document.getElementById("DrpCheckoutDate").selectedIndex].value=ChgMonth;
      hide();
    }
    return;
  }

  this.changeMonth = changeMonth;
  function changeMonth(change) {
    var DFY = new Date();
    var Cyear = DFY.getFullYear();
    var Chyear = DFY.getFullYear()-1;
    var DFT = new Date();
    var Cmonth = DFT.getMonth();
    var Chmonth =DFT.getMonth()-11;
//   currentMonth += change;
if(change == 1){
//alert(currentMonth+"d");
Cmonth=Cmonth+1;
//alert(Cmonth);
   if(currentMonth == Cmonth && currentYear == Cyear){
   currentMonth = Cmonth;
   //alert(currentMonth+"x");
   }
   if(currentMonth < Cmonth ){
   
   currentMonth=currentMonth+1;
   }
   if(currentYear ==Chyear)
   {
   currentMonth=currentMonth+1;
   }
   
//   else{
//   currentMonth += change;alert(currentMonth+"chgm");
//   }
}
if(change == -1){
//currentMonth += change;

if(currentYear == Cyear){
currentMonth += change;//alert(currentMonth+"cuY");alert(currentMonth+"sysY");
}
  if(currentYear==Chyear){
  if( (currentMonth)-3 < Cmonth  ){
  
  currentMonth=currentMonth ;
  }
  else{
      currentMonth += change;//alert(currentMonth+"ddd");
      }
   }
  
}

    currentDay = 0;
     if(currentMonth > 12) {
       currentMonth = 1;
      //currentYear++;
       if(change == 1){
       if(currentYear==Cyear){
       currentYear =Cyear;
       }
      if(currentYear==Chyear){
      currentYear =(currentYear)+1;
     }
    }
    
   } 
    else if(currentMonth < 1) {
       currentMonth = 12; 
       //currentYear--;
       if(change == -1){
       if(currentYear==Cyear){
       currentYear =(currentYear)-1;
       //alert(currentYear+"Chg");
       if(currentYear == Chyear ){
       currentYear =Chyear;//alert(currentYear);
      }
     }
    }
    
  }

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

  this.changeYear = changeYear;
  function changeYear(change) {
  
     var DFY = new Date();
   var Cyear = DFY.getFullYear();
    var Chyear = DFY.getFullYear()-1;
  if(change== 1)
   {
      var DFT = new Date();
      var Cmonth = DFT.getMonth();
      var CHmonth = DFT.getMonth()-12;
      var Chyear = DFT.getFullYear()-1;
      var DG=Cmonth-CHmonth;
      
      if(currentYear < Cyear){
     
       currentYear += change; //alert(currentYear+"RWD");
      // alert(currentMonth);alert(Cmonth);alert(CHmonth);alert(DG);
//       if(currentMonth > Cmonth){
//         alert(currentMonth);
//         if(currentMonth ==12)
//         currentMonth=1;
//         else if(currentMonth ==11)
//         currentMonth=1;
//         else if(currentMonth==10)
//         currentMonth=1;

//       }
//alert(currentMonth);alert(DG);
       if(currentMonth > Cmonth ){
   
      if(Cmonth < currentMonth){
      currentMonth = (Cmonth)+1;
      }
         
      }

       
       }
   
    if(currentYear == Cyear)
    {
     currentYear = Cyear;//alert(currentYear+"FWD");
    }
    if(currentYear > Cyear)
    {
    currentYear = Cyear;//alert(currentYear+"same");
    }
    
   }
   if(change== -1)
   {
    
      var DFT = new Date();
      var Cmonth = DFT.getMonth();
      var CHmonth = DFT.getMonth()-11;
      var Chyear = DFT.getFullYear()-1;
      var cyear =DFT.getFullYear(); 
      var DG=Cmonth-CHmonth;
      
//      if(currentYear == cyear){
//        currentYear=cyear; currentMonth=DG -11; //alert(currentMonth);
//      }
//      
      if(currentYear > Chyear){
      currentYear += change; 
     
      if(currentYear==Chyear){
        
         if(currentMonth == (Cmonth)+1   ){
         
         currentMonth=currentMonth+1;//alert(currentMonth+"dg");
       }
      if(currentMonth < (Cmonth)+1 ){
      
//     alert(currentMonth+"current");
//     alert(DG+"dg");alert(Cmonth);alert(CHmonth+"min");
//     alert("s"); DG-Cmonth
//      if(Cmonth < currentMonth){
//      currentMonth = DG-Cmonth;
//      }
      
      
      
        /* if(currentMonth == 7)
         {
          currentMonth = DG - 4;
         }
        else if (currentMonth == 8)
        {
         currentMonth = DG - 4;
        }
        else if (currentMonth == 9)
        {
        currentMonth = DG - 4;
        }
         else if (currentMonth == 10)
         {
          currentMonth = DG - 4;
         }
         else if (currentMonth == 11)
         {
          currentMonth = DG - 4;
         }
         else if(currentMonth == 6)
         {
         currentMonth = DG - 4;
         }
         else if(currentMonth == 5)
         {
         currentMonth = DG - 4;
         }
         else if(currentMonth == 4)
         {
         currentMonth = DG - 4;
         }
         else if(currentMonth == 3)
         {
         currentMonth = DG - 4;
         }
         else if(currentMonth == 2)
         {
         currentMonth = DG - 4;
         }
         else if(currentMonth == 1)
         {
          currentMonth = DG - 4;
         }*/
         
         
      
      }
   }
      
      
      
    }
    
    if(currentYear == Chyear)
    {
     
     currentYear = Chyear;//alert(currentYear+"FWD");
     
    }
    
   }
    currentDay = 0;
    calendar = document.getElementById(calendarId);
    calendar.innerHTML = calendarDrawTable();
  }

  function getCurrentYear() {
    var year = new Date().getYear();
    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> </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></td>";
    table = table + "</tr>";
    table = table + "<tr><th>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';
          }

          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();'>Close</a></td></tr>";
    table = table + "</table>";

    return table;
  }

  this.show = show;
  function show(field) {
  
    // If the calendar is visible and associated with
    // this field do not do anything.
    if (dateField == field) {
      return;
    } else {
      dateField = field;
    }

    if(dateField) {
      try {
        var dateString = new String(dateField.value);
        var dateParts = dateString.split("-");
        
        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);

      setElementProperty('display', 'block', 'CalendarControlIFrame');
      setProperty('display', 'block');

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

      var x = fieldPos.getElementLeft();
      var y = fieldPos.getElementBottom();
      x=x+20;
      y=y-20;
      setProperty('left', x + "px");
      setProperty('top', y + "px");
      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;
    }
  }
}

var calendarControl = new CalendarControl();

function showCalendarControl(textField,ControlName) {
 
hidVr=ControlName;
  calendarControl.show(textField);
}

function hideCalendarControl() {
  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>");