var bookPostBackElement;
 
 function ShowRooms(ddlRoomsID)
 {
     var ddlRooms = $get(ddlRoomsID);
     if(ddlRooms != null)
     {
         var roomsCount = ddlRooms.options[ddlRooms.selectedIndex].text;
         
         if(roomsCount > 0)
         {
             var divRoomDetails1 = $get('divRoomDetails1');
             var divRoomDetails2 = $get('divRoomDetails2');
             var divRoomDetails3 = $get('divRoomDetails3');
             var divRoomDetails4 = $get('divRoomDetails4');
             var divRoomDetails5 = $get('divRoomDetails5');
             
             if(divRoomDetails1 != null && divRoomDetails2 != null && divRoomDetails3 != null && 
                divRoomDetails4 != null && divRoomDetails5 != null)
             
             if(roomsCount == 5)
             {
                 divRoomDetails2.style.display = '';
                 divRoomDetails3.style.display = '';
                 divRoomDetails4.style.display = '';
                 divRoomDetails5.style.display = '';
             }
             else
             { 
                divRoomDetails5.style.display = 'none';
                if(roomsCount == 4)
                 {
                     divRoomDetails2.style.display = '';
                     divRoomDetails3.style.display = '';
                     divRoomDetails4.style.display = '';
                 }
                 else
                 { 
                    divRoomDetails4.style.display = 'none';
                    if(roomsCount == 3)
                    {
                         divRoomDetails2.style.display = '';
                         divRoomDetails3.style.display = '';
                    }
                    else
                     { 
                        divRoomDetails3.style.display = 'none';
                        if(roomsCount == 2)
                             divRoomDetails2.style.display = '';
                        else
                             divRoomDetails2.style.display = 'none';
                     }
                 }
             }
         }
     }
 }
 
 function ShowChildAges(ddlChildrenID, ddlChildAge1ID, ddlChildAge2ID)
 {
     var ddlChildren = $get(ddlChildrenID);

     if(ddlChildren != null)
     {
         var ddlChildAge1 = $get(ddlChildAge1ID);
         var ddlChildAge2 = $get(ddlChildAge2ID); 
             
         if(ddlChildAge1 != null && ddlChildAge2 != null)
         {
             var childrenCount = ddlChildren.options[ddlChildren.selectedIndex].text;
             
             switch(childrenCount)
             {
             case '0':
               ddlChildAge1.style.display = 'none';
               ddlChildAge2.style.display = 'none';
               break;
             case '1':
               ddlChildAge1.style.display = '';
               ddlChildAge2.style.display = 'none';
               break;
              case '2':
               ddlChildAge1.style.display = '';
               ddlChildAge2.style.display = '';
             }
         }
     }
 }
 
 function RecalculatePeopleCount(ddlAdultsID, ddlChildrenID, divChildrenID, ddlChildAge1ID, ddlChildAge2ID)
 {
     var ddlChildren = $get(ddlChildrenID);
     var ddlAdults = $get(ddlAdultsID);
     var divChildren = $get(divChildrenID);
     var ddlChildAge1 = $get(ddlChildAge1ID);
     var ddlChildAge2 = $get(ddlChildAge2ID); 

     if(ddlAdults != null && ddlChildren != null && divChildren != null)
     {
         var adultsCount = ddlAdults.options[ddlAdults.selectedIndex].text;
         ddlChildren.options.length = 0;
         divChildren.style.display = '';
         if(ddlChildAge1 != null && ddlChildAge2 != null)
         {
             ddlChildAge1.style.display = 'none';
             ddlChildAge2.style.display = 'none';
         }
         switch(adultsCount)
         {
         case '1':
         case '2':
            for (i=0; i <= 2; i++)
            {
               ddlChildren.options[ddlChildren.options.length] = new Option(i,i,false,false);
            }
            ddlChildren.selectedIndex = 0;
            break;
         case '3':
            for (i=0; i <= 1; i++)
            {
               ddlChildren.options[ddlChildren.options.length] = new Option(i,i,false,false);
            }
            ddlChildren.selectedIndex = 0;
            break;
         case '4':
            divChildren.style.display = 'none';   
         }
     }
 }
 
function InitializeRequest(sender, args) 
{
    bookPostBackElement = args.get_postBackElement();
    if (bookPostBackElement != null)
    {
         var litWaitText = $get(litWaitTextID);
         if(litWaitText != null)
         {
             if(bookPostBackElement.id == btnSearch)
             {
                litWaitText.innerHTML = 'Please wait while we check availability...';                
             }
             else if (bookPostBackElement.id == btnBookPackage)
             {
                litWaitText.innerHTML = 'Booking selected package...';
             }             
             else
             {
                litWaitText.innerHTML = 'Processing your request. Wait please...';
             }             
             $get(pnlMainID).style.display = "none";
             $get(pnlWaitID).style.display = "block";
         }        
    }
}
    
function EndRequest (sender, args) 
{
    if (bookPostBackElement != null)
    {
     $get(pnlWaitID).style.display = "none";
     $get(pnlMainID).style.display = "block";
    }
    if (args.get_error() && args.get_error().name == 'Sys.WebForms.PageRequestManagerTimeoutException') 
    {
           alert('There was a problem communicating with the Eurostar reservation system - please try again.');
           // remember to set errorHandled = true to keep from getting a popup from the AJAX library itself 
           args.set_errorHandled(true);
    }
}

function ShowNextImage(hotelImageID,imageInfoList,nextImageButtonID,previousImageButtonID,imageIndexHFID)
 {
     var hotelImage = $get(hotelImageID);
     var imageIndexHF = $get(imageIndexHFID);
     
     if(hotelImage != null && imageInfoList != null && imageIndexHF !=null)
     {
        var nextImageIndex = parseInt(imageIndexHF.value) + 1 ;
        var nextImageButton = $get(nextImageButtonID);
        var previousImageButton = $get(previousImageButtonID);
        
        if (imageInfoList.length > nextImageIndex * 2)
        {
            // ImageInfoList array contains image urls at even positions and image captions at odd positions.
            hotelImage.src = imageInfoList[nextImageIndex * 2];
            hotelImage.title = imageInfoList[nextImageIndex * 2 + 1];
            imageIndexHF.value = nextImageIndex;
            
            if (previousImageButton !=null)
            {
                previousImageButton.disabled = false;
                previousImageButton.className="enabledLink";
            }
                       
            if(imageInfoList.length - 2  == nextImageIndex * 2)
                 if (nextImageButton !=null )
                 {
                    nextImageButton.disabled = true;
                    nextImageButton.className="disabledLink";
                 }
        }
        else
        {
           nextImageButton.disabled = true;
           nextImageButton.className="disabledLink";
        }
     }         
 }
 
 function ShowPreviousImage(hotelImageID,imageInfoList,nextImageButtonID,previousImageButtonID,imageIndexHFID)
 {
     var hotelImage = $get(hotelImageID);
     var imageIndexHF = $get(imageIndexHFID);
     
     if(hotelImage != null && imageInfoList != null && imageIndexHF !=null)
     {
        var nextImageIndex = parseInt(imageIndexHF.value) - 1 ;
        var nextImageButton = $get(nextImageButtonID);
        var previousImageButton = $get(previousImageButtonID);
        
        if (nextImageIndex >= 0)
        {
            // ImageInfoList array contains image urls at even positions and image captions at odd positions.
            hotelImage.src = imageInfoList[nextImageIndex * 2];
            hotelImage.title = imageInfoList[nextImageIndex * 2 + 1];
            imageIndexHF.value = nextImageIndex;
            
            if (nextImageButton !=null)
            {
                nextImageButton.disabled = false;
                nextImageButton.className="enabledLink";
            }
                       
            if(nextImageIndex == 0)
                 if (previousImageButton !=null )
                 {
                    previousImageButton.disabled = true;
                    previousImageButton.className="disabledLink";
                 }
        }
        else
        {
           previousImageButton.disabled = true;
           previousImageButton.className="disabledLink";
        }
     }         
 }
 
 function ShowOriginalImage(hotelImageID)
 {
     var hotelImage = $get(hotelImageID);   
     
     if(hotelImage != null)
     {
        var popupWin = window.open(hotelImage.src, 'Image', 'location,width=350,height=300,top=300,left=300,scrollbars=yes');
        popupWin.focus();
     }
 }
 
  function ChangeTrain(tpTrainsID, tpHotelsID)
  {
    location.hash = "TabPanel";
    var tpTrains = $get(tpTrainsID);
    var tpHotels = $get(tpHotelsID);
    if(tpTrains != null && tpHotels != null)
    {
        //tpTrains.click();
        tpTrains.style.display = "block";
        tpTrains.style.visibility = "visible";
        tpHotels.style.display = "none";
        tpHotels.style.visibility = "hidden";
        
        if(tpTrains.parentNode.parentNode.childNodes[0].className == "ajax__tab_header")
        {
            tpTrains.parentNode.parentNode.childNodes[0].childNodes[0].className = "ajax__tab_active";
            tpTrains.parentNode.parentNode.childNodes[0].childNodes[1].className = "";
        }
        else if(tpTrains.parentNode.parentNode.childNodes[1].className == "ajax__tab_header")
        {
            tpTrains.parentNode.parentNode.childNodes[1].childNodes[1].className = "ajax__tab_active";
            tpTrains.parentNode.parentNode.childNodes[1].childNodes[2].className = "";
        }
    }
  }
  
  function ChangeHotel(tpTrainsID, tpHotelsID)
  {
    location.hash = "TabPanel";
    var tpTrains = $get(tpTrainsID);
    var tpHotels = $get(tpHotelsID);
    if(tpTrains != null && tpHotels != null)
    {
        //tpHotels.click();
        tpTrains.style.display = "none";
        tpTrains.style.visibility = "hidden";
        tpHotels.style.display = "block";
        tpHotels.style.visibility = "visible";

        if(tpTrains.parentNode.parentNode.childNodes[0].className == "ajax__tab_header")
        {
            tpTrains.parentNode.parentNode.childNodes[0].childNodes[0].className = "";
            tpTrains.parentNode.parentNode.childNodes[0].childNodes[1].className = "ajax__tab_active";
        }
        else if(tpTrains.parentNode.parentNode.childNodes[1].className == "ajax__tab_header")
        {
            tpTrains.parentNode.parentNode.childNodes[1].childNodes[1].className = "";
            tpTrains.parentNode.parentNode.childNodes[1].childNodes[2].className = "ajax__tab_active";
        }
    }
  }

function SyncCalendar(mainCalendarBoxID, mainCalendarBehaviorID, dependentCalendarBehaviorID)
{
    var mainCalendarBox = document.getElementById(mainCalendarBoxID);
    
    var oldDateString = mainCalendarBox.PreviousValue;
    var currentDateString = mainCalendarBox.value;
    mainCalendarBox.PreviousValue = mainCalendarBox.value;
    
    var oldDate = DateFromString(oldDateString);
    var currentDate = DateFromString(currentDateString);
    
    var mainCalendar = $find(mainCalendarBehaviorID);
    mainCalendar.set_selectedDate(currentDate);

    var millisecondsDiff = currentDate.getTime() - oldDate.getTime();
    
    var dependentCalendar = $find(dependentCalendarBehaviorID);    
    var selectedDateMilliseconds = dependentCalendar._selectedDate.getTime();
    dependentCalendar.set_selectedDate(new Date(selectedDateMilliseconds + millisecondsDiff));
}

function DateFromString(dateString)
{
    var dayStr = dateString.substr(0,2);
    var monthStr = dateString.substr(3,2);
    var yearStr = dateString.substr(6,4);
    
    var dt = new Date();
    dt.setDate(parseInt(dayStr, 10));
    dt.setMonth(parseInt(monthStr, 10) - 1);
    dt.setFullYear(parseInt(yearStr, 10));
    dt.setHours(0, 0, 0, 0);
    
    return dt;
}