var datePickerDivIDForm = "datepickerForm";
var iFrameDivIDForm = "datepickeriframeForm";

var dayArrayShort = new Array('Su', 'Mo', 'Tu', 'We', 'Th', 'Fr', 'Sa');
var dayArrayMed = new Array('Sun', 'Mon', 'Tue', 'Wed', 'Thu', 'Fri', 'Sat');
var dayArrayLong = new Array('Sunday', 'Monday', 'Tuesday', 'Wednesday', 'Thursday', 'Friday', 'Saturday');
var monthArrayShort = new Array('Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul', 'Aug', 'Sep', 'Oct', 'Nov', 'Dec');
var monthArrayMed = new Array('Jan', 'Feb', 'Mar', 'Apr', 'May', 'June', 'July', 'Aug', 'Sept', 'Oct', 'Nov', 'Dec');
var monthArrayLong = new Array('January', 'February', 'March', 'April', 'May', 'June', 'July', 'August', 'September', 'October', 'November', 'December');
 
var defaultDateSeparator = "/";        // common values would be "/" or "."
var defaultDateFormat = "dmy"    // valid values are "mdy", "dmy", and "ymd"
var dateSeparator = defaultDateSeparator;
var dateFormat = defaultDateFormat;
var dateFieldobj;

function displayDatePickerForm(dateFieldName, enableDateAfterFieldName, displayBelowThisObject, dtFormat, dtSep)
{
  dateFieldobj=dateFieldName;
  var targetDateField = document.getElementsByName (dateFieldName).item(0);
  
  if (!displayBelowThisObject || displayBelowThisObject==undefined)
    displayBelowThisObject = targetDateField;

  if (dtSep)
    dateSeparator = dtSep;
  else
    dateSeparator = defaultDateSeparator;
 
  if (dtFormat)
    dateFormat = dtFormat;
  else
    dateFormat = defaultDateFormat;
  var x = displayBelowThisObject.offsetLeft;
  var y = displayBelowThisObject.offsetTop + displayBelowThisObject.offsetHeight ;
 
  var parent = displayBelowThisObject;
  while (parent.offsetParent) {
    parent = parent.offsetParent;
    x += parent.offsetLeft;
    y += parent.offsetTop ;
  }

  drawDatePickerForm(targetDateField, enableDateAfterFieldName, x, y);
}

function drawDatePickerForm(targetDateField, enableDateAfterFieldName, x, y)
{
  var dt = getFieldDate(targetDateField.value );
 
  if (!document.getElementById(datePickerDivIDForm)) {
    var newNode = document.createElement("div");
    newNode.setAttribute("id", datePickerDivIDForm);
    newNode.setAttribute("class", "dpDiv");
    newNode.setAttribute("style", "visibility: hidden;");
    document.body.appendChild(newNode);
  }
 
  var pickerDiv = document.getElementById(datePickerDivIDForm);
  pickerDiv.style.position = "absolute";
  pickerDiv.style.left = x + "px";
  pickerDiv.style.top = y + "px";
  pickerDiv.style.visibility = (pickerDiv.style.visibility == "visible" ? "hidden" : "visible");
  pickerDiv.style.display = (pickerDiv.style.display == "block" ? "none" : "block");
  pickerDiv.style.zIndex = 10000;

  refreshDatePickerForm(targetDateField.name, enableDateAfterFieldName, dt.getFullYear(), dt.getMonth(), dt.getDate());
}


function refreshDatePickerForm(dateFieldName, enableDateAfterFieldName, year, month, day)
{
  var thisDay = new Date();
  
  var currentDate;
  if(enableDateAfterFieldName==undefined || enableDateAfterFieldName=='undefined' || enableDateAfterFieldName=='')
   currentDate=new Date();
  else
   currentDate=getFieldDate(document.getElementsByName (enableDateAfterFieldName).item(0).value);  
   
   currentDate.setHours(0);
   currentDate.setMinutes(0);
   currentDate.setSeconds(0);
 
  if ((month >= 0) && (year > 0)) {
    thisDay = new Date(year, month, 1);
  } else {
    day = thisDay.getDate();
    thisDay.setDate(1);
  }
 
  var crlf = "\r\n";
  var TABLE = "<table cols=7 class='dpTable'>" + crlf;
  var xTABLE = "</table>" + crlf;
  var TR = "<tr class='dpTR'>";
  var TR_title = "<tr class='dpTitleTR'>";
  var TR_days = "<tr class='dpDayTR'>";
  var TR_todaybutton = "<tr class='dpTodayButtonTR'>";
  var xTR = "</tr>" + crlf;
  var TD = "<td class='dpTD' onMouseOut='this.className=\"dpTD\";' onMouseOver=' this.className=\"dpTDHover\";' ";    // leave this tag open, because we'll be adding an onClick event
  var TD2 = "<td class='dpTD_noselect' ";    // leave this tag open, because we'll be adding an onClick event

  var TD_title = "<td colspan=5 class='dpTitleTD'>";
  var TD_buttons = "<td class='dpButtonTD'>";
  var TD_todaybutton = "<td colspan=7 class='dpTodayButtonTD' align='right'>";
  var TD_days = "<td class='dpDayTD'>";
  var TD_selected = "<td class='dpDayHighlightTD' onMouseOut='this.className=\"dpDayHighlightTD\";' onMouseOver='this.className=\"dpTDHover\";' ";    // leave this tag open, because we'll be adding an onClick event
  var TD2_selected = "<td class='dpTD_noselect'";    // leave this tag open, because we'll be adding an onClick event
  
  var TD3_selected = "<td class='dpTD_weekendselect' onMouseOut='this.className=\"dpTD_weekendselect\";' onMouseOver=' this.className=\"dpTDHoverweekend\";' ";
  var TD4_selected = "<td class='dpTD' onMouseOut='this.className=\"dpTD\";' onMouseOver=' this.className=\"dpTDHover\";' ";
  
  var TD5_selected= "<td class='dpTD_noselectweekend' "
  var TD6_selected=  "<td class='dpTD_noselect' ";
  
  
  var xTD = "</td>" + crlf;
  var DIV_title = "<div class='dpTitleText'>";
  var DIV_selected = "<div class='dpDayHighlight'>";
  var xDIV = "</div>";
 
  var html = TABLE;
 
  html += TR_title;
  html += TD_buttons + getButtonCode(dateFieldName, enableDateAfterFieldName, thisDay, -1, "&lt;") + xTD;
  html += TD_title + DIV_title + monthArrayLong[ thisDay.getMonth()] + " " + thisDay.getFullYear() + xDIV + xTD;
  html += TD_buttons + getButtonCode(dateFieldName, enableDateAfterFieldName, thisDay, 1, "&gt;") + xTD;
  html += xTR;
 
  html += TR_days;
  for(i = 0; i < dayArrayShort.length; i++)
    html += TD_days + dayArrayShort[i] + xTD;
  html += xTR;
 
  html += TR;
 
  for (i = 0; i < thisDay.getDay(); i++)
    html += TD + ">&nbsp;" + xTD;
 
  do {
    dayNum = thisDay.getDate();
    TD_onclick = " onclick=\"updateDateFieldForm('" + dateFieldName + "', '" + getDateString(thisDay) + "');\">";
    TD_onclickDisabled = " >";

    if (!isGreaterOrEqualDateCal(thisDay,currentDate))
	{
	
	
	if ((thisDay.getDay() == 6 || thisDay.getDay() == 0) && dayNum!="")
	{
	  TD2_selected=TD5_selected+'style=\"width:'+(170/7)+'px\"'
	  TD2=TD5_selected+'style=\"width:'+(170/7)+'px\"'
	}  
	else
	{
	   TD2_selected=TD6_selected+'style=\"width:'+(170/7)+'px\"'
	   TD2=TD6_selected+'style=\"width:'+(170/7)+'px\"'
	}
	    if (dayNum == day)
	      html += TD2_selected + TD_onclickDisabled + DIV_selected + dayNum + xDIV + xTD;
	    else
	      html += TD2 + TD_onclickDisabled + dayNum + xTD;
	}
	
	else
	{
	if ((thisDay.getDay() == 6 || thisDay.getDay() == 0) && dayNum!="")
	{
	  TD=TD3_selected+'style=\"width:'+(170/7)+'px\"'
	  TD_selected=TD3_selected+'style=\"width:'+(170/7)+'px\"'
	}  
	else
	{
	  TD=TD4_selected+'style=\"width:'+(170/7)+'px\"'
	  TD_selected=TD4_selected+'style=\"width:'+(170/7)+'px\"'
	}
	    if (dayNum == day)
	      html += TD_selected + TD_onclick + DIV_selected + dayNum + xDIV + xTD;
	    else
	      html += TD + TD_onclick + dayNum + xTD;
		  
    }
    if (thisDay.getDay() == 6)
      html += xTR + TR;
    
    thisDay.setDate(thisDay.getDate() + 1);
  } while (thisDay.getDate() > 1)
 
  if (thisDay.getDay() > 0) {
    for (i = 6; i >= thisDay.getDay(); i--)
      html += '<td class=\"dpTD\"> ' + "&nbsp;" + xTD;
  }
  html += xTR;
 
  var today = new Date();
  var todayString = "Today is " + dayArrayMed[today.getDay()] + ", " + monthArrayMed[ today.getMonth()] + " " + today.getDate();
  html += TR_todaybutton + TD_todaybutton;
//  html += "<a href='javascript:updateDateFieldForm(\""+dateFieldobj+"\",\"\");'>[ Clear ]</a> ";
  html += "<a href='javascript:closeCalendar();'>[ x ]</a>";
  html += xTD + xTR;
 
  html += xTABLE;
  document.getElementById(datePickerDivIDForm).innerHTML=html;
  adjustiFrame();
}


function getButtonCode(dateFieldName, enableDateAfterFieldName, dateVal, adjust, label)
{
  var newMonth = (dateVal.getMonth () + adjust) % 12;
  var newYear = dateVal.getFullYear() + parseInt((dateVal.getMonth() + adjust) / 12);
  if (newMonth < 0) {
    newMonth += 12;
    newYear += -1;
  }
 
if(label=="&lt;")
{
  return "<a href='javascript:refreshDatePickerForm(\"" + dateFieldName + "\", \"" + enableDateAfterFieldName + "\", " + newYear + ", " + newMonth + ");'>" +  "<img src='http://www.lth-hotels.com/images/arrow_left.gif' border='0' style='padding:10px 0 10px 0;' /></a>";
}
else if(label=="&gt;")
{
  return "<a href='javascript:refreshDatePickerForm(\"" + dateFieldName + "\", \"" + enableDateAfterFieldName + "\", " + newYear + ", " + newMonth + ");'>" +  "<img src='http://www.lth-hotels.com/images/arrow_right.gif' border='0' style='padding:10px 0 10px 0;' /></a>";
}
return "";
}

function getDateString(dateVal)
{
  var dayString = "00" + dateVal.getDate();
  var monthString = "00" + (dateVal.getMonth()+1);
  dayString = dayString.substring(dayString.length - 2);
  monthString = monthString.substring(monthString.length - 2);
 
  switch (dateFormat) {
    case "dmy" :
      return dayString + dateSeparator + monthString + dateSeparator + dateVal.getFullYear();
    case "ymd" :
      return dateVal.getFullYear() + dateSeparator + monthString + dateSeparator + dayString;
    case "mdy" :
    default :
      return monthString + dateSeparator + dayString + dateSeparator + dateVal.getFullYear();
  }
}

function getFieldDate(dateString)
{
  var dateVal;
  var dArray;
  var d, m, y;
 
  try {
    dArray = splitDateString(dateString);
    if (dArray) {
      switch (dateFormat) {
        case "dmy" :
          d = parseInt(dArray[0], 10);
          m = parseInt(dArray[1], 10) - 1;
          y = parseInt(dArray[2], 10);
          break;
        case "ymd" :
          d = parseInt(dArray[2], 10);
          m = parseInt(dArray[1], 10) - 1;
          y = parseInt(dArray[0], 10);
          break;
        case "mdy" :
        default :
          d = parseInt(dArray[1], 10);
          m = parseInt(dArray[0], 10) - 1;
          y = parseInt(dArray[2], 10);
          break;
      }
      dateVal = new Date(y, m, d);
    } else if (dateString) {
      dateVal = new Date(dateString);
    } else {
      dateVal = new Date();
    }
  } catch(e) {
    dateVal = new Date();
  }
 
  return dateVal;
}

function splitDateString(dateString)
{
  var dArray;
  if (dateString.indexOf("/") >= 0)
    dArray = dateString.split("/");
  else if (dateString.indexOf(".") >= 0)
    dArray = dateString.split(".");
  else if (dateString.indexOf("-") >= 0)
    dArray = dateString.split("-");
  else if (dateString.indexOf("\\") >= 0)
    dArray = dateString.split("\\");
  else
    dArray = false;
 
  return dArray;
}

function updateDateFieldForm(dateFieldName, dateString)
{

  var targetDateField = document.getElementsByName (dateFieldName).item(0);
  var chkoutTagetField = document.getElementById("hotelcheckout_date") // For Auto Check out 

 // if (dateString)
targetDateField.value = dateString;
  var pickerDiv = document.getElementById(datePickerDivIDForm);
  pickerDiv.style.visibility = "hidden";
  pickerDiv.style.display = "none";
 
  adjustiFrame();
  targetDateField.focus();
 
  if ((dateString) && (typeof(datePickerClosed) == "function"))
    datePickerClosed(targetDateField);

	var frmken = document.forms["bookingenginemk"];
	var nbnuitmk = frmken.elements["nb_nuit"];
	var checkoutmk = frmken.elements["txtchkoutmk"].value;
	var chkindatemk = frmken.elements["txtchkinmk"].value;
	var elemmk = chkindatemk.split('/');
	chkindaymk = elemmk[0];
	chkinmonthmk = elemmk[1];
	chkinyearmk = elemmk[2];
	var CheckInDateMK=new Date(chkinyearmk,chkinmonthmk,chkindaymk);
	var chkoutdatemk = document.getElementById('txtchkoutmk').value;
	var elemmk = chkoutdatemk.split('/');
	chkoutdaymk = elemmk[0];
	chkoutmonthmk = elemmk[1];
	chkoutyearmk = elemmk[2];
	var CheckOutDateMK=new Date(chkoutyearmk,chkoutmonthmk,chkoutdaymk);
	var iDurationmk=DateDiff(CheckInDateMK,CheckOutDateMK)-1;
	
	var frmnott = document.forms["bookingenginemn"];
	var nbnuitmn = frmnott.elements["nb_nuit"];
	var checkoutmn = frmnott.elements["txtchkoutmn"].value;
	var chkindatemn = frmnott.elements["txtchkinmn"].value;
	var elemmn = chkindatemn.split('/');
	chkindaymn = elemmn[0];
	chkinmonthmn = elemmn[1];
	chkinyearmn = elemmn[2];
	var CheckInDateMN=new Date(chkinyearmn,chkinmonthmn,chkindaymn);
	var chkoutdatemn = document.getElementById('txtchkoutmn').value;
	var elemmn = chkoutdatemn.split('/');
	chkoutdaymn = elemmn[0];
	chkoutmonthmn = elemmn[1];
	chkoutyearmn = elemmn[2];
	var CheckOutDateMN=new Date(chkoutyearmn,chkoutmonthmn,chkoutdaymn);
	var iDurationmn=DateDiff(CheckInDateMN,CheckOutDateMN)-1;
	
	var frmpadd = document.forms["bookingengine"];

	var nbnuit = frmpadd.elements["nb_nuit"];
	var checkout = frmpadd.elements["txtchkout"].value;
	var chkindate = frmpadd.elements["txtchkin"].value;
	var elem = chkindate.split('/');
	chkinday = elem[0];
	chkinmonth = elem[1];
	chkinyear = elem[2];
	var CheckInDate=new Date(chkinyear,chkinmonth,chkinday);
	var chkoutdate = document.getElementById('txtchkout').value;
	var elem = chkoutdate.split('/');
	chkoutday = elem[0];
	chkoutmonth = elem[1];
	chkoutyear = elem[2];
	var CheckOutDate=new Date(chkoutyear,chkoutmonth,chkoutday);
	var iDuration=DateDiff(CheckInDate,CheckOutDate)-1;
	if (iDuration>30)
	{
		alert("Duration must be less than or equal to 30 days.");
		CheckOutDateMercure();
		init();
		closeCalendar();
	}
	else if (iDuration<=0)
	{
		CheckOutDateMercure();
	}
	else
	{
		nbnuit.value = iDuration;
		CheckOutDateMercure();
	}
	if (iDurationmk>30)
	{
		alert("Duration must be less than or equal to 30 days.");
		CheckOutDateMercureKen();
		init();
		closeCalendar();
	}
	else if (iDurationmk<=0)
	{
		CheckOutDateMercureKen();
	}
	else
	{
		nbnuitmk.value = iDurationmk;
		CheckOutDateMercureKen();
	}
	
	if (iDurationmn>30)
	{
		alert("Duration must be less than or equal to 30 days.");
		CheckOutDateMercureNott();
		init();
		closeCalendar();
	}
	else if (iDurationmn<=0)
	{
		CheckOutDateMercureNott();
	}
	else
	{
		nbnuitmn.value = iDurationmn;
		CheckOutDateMercureNott();
	}
	
	var frmind = document.forms["frmBook"];
	var durationind = frmind.elements["numberOfNights"].value;
	
	var dind = frmind.elements["valholder"].value;
	var elemind = dind.split('/');
	
	dayind = elemind[0];
	monthind = elemind[1];
	yearind = elemind[2];
	
	frmind.elements['checkInDate'].selectedIndex = dayind-1;
	frmind.elements['select3'].selectedIndex = monthind-1;
	frmind.elements["checkInYear"].value = yearind;
}

function closeCalendar()
{
var pickerDiv = document.getElementById(datePickerDivIDForm);
  pickerDiv.style.visibility = "hidden";
  pickerDiv.style.display = "none";
   adjustiFrame();
}

function setToDate()
{
var FrmObj = document.formBooking;
var fromDate = FrmObj.in_date.value;
var toDate = FrmObj.out_date.value;
var dArray;

	dArray = splitDateString(fromDate);
    if (dArray) {
      switch (dateFormat) {
        case "dmy" :
          d = parseInt(dArray[0], 10);
          m = parseInt(dArray[1], 10) - 1;
          y = parseInt(dArray[2], 10);
          break;
        case "ymd" :
          d = parseInt(dArray[2], 10);
          m = parseInt(dArray[1], 10) - 1;
          y = parseInt(dArray[0], 10);
          break;
        case "mdy" :
        default :
          d = parseInt(dArray[1], 10);
          m = parseInt(dArray[0], 10) - 1;
          y = parseInt(dArray[2], 10);
          break;
      }
      fromDate = new Date(y, m, d);
	}
	
	dArray = splitDateString(toDate);
    if (dArray) {
      switch (dateFormat) {
        case "dmy" :
          d = parseInt(dArray[0], 10);
          m = parseInt(dArray[1], 10) - 1;
          y = parseInt(dArray[2], 10);
          break;
        case "ymd" :
          d = parseInt(dArray[2], 10);
          m = parseInt(dArray[1], 10) - 1;
          y = parseInt(dArray[0], 10);
          break;
        case "mdy" :
        default :
          d = parseInt(dArray[1], 10);
          m = parseInt(dArray[0], 10) - 1;
          y = parseInt(dArray[2], 10);
          break;
      }
	  toDate = new Date(y, m, d);
	}
     
	  if(toDate <= fromDate)
		{
			FrmObj.out_date.value = getDateString(DateAdd(fromDate,"D",1))
		}
		else
		{
			FrmObj.out_date.value = getDateString(toDate)
		}	

}

function adjustiFrame(pickerDiv, iFrameDiv)
{
  var is_opera = (navigator.userAgent.toLowerCase().indexOf("opera") != -1);
  if (is_opera)
    return;
  
  try {
    if (!document.getElementById(iFrameDivIDForm)) {
      var newNode = document.createElement("iFrame");
      newNode.setAttribute("id", iFrameDivIDForm);
      newNode.setAttribute("scrolling", "no");
      newNode.setAttribute ("frameborder", "0");
      document.body.appendChild(newNode);
    }
    
    if (!pickerDiv)
      pickerDiv = document.getElementById(datePickerDivIDForm);
    if (!iFrameDiv)
      iFrameDiv = document.getElementById(iFrameDivIDForm);
    
    try {
      iFrameDiv.style.position = "absolute";
      iFrameDiv.style.width = pickerDiv.offsetWidth;
      iFrameDiv.style.height = pickerDiv.offsetHeight ;
      iFrameDiv.style.top = pickerDiv.style.top;
      iFrameDiv.style.left = pickerDiv.style.left;
      iFrameDiv.style.zIndex = pickerDiv.style.zIndex - 1;
      iFrameDiv.style.visibility = pickerDiv.style.visibility ;
      iFrameDiv.style.display = pickerDiv.style.display;
    } catch(e) {
    }
 
  } catch (ee) {
  }
 
}

function isGreaterOrEqualDateCal(valDate1,valDate2)
{
	var tempDate1=new Date(valDate1);
	var tempDate2=new Date(valDate2);
	
	if(tempDate1.getFullYear()>tempDate2.getFullYear())
		return true;
	else if(tempDate1.getFullYear()<tempDate2.getFullYear())
		return false;
		
	if(tempDate1.getMonth()>tempDate2.getMonth())
		return true;
	else if(tempDate1.getMonth()<tempDate2.getMonth())
		return false;
		
	if(tempDate1.getDate()>=tempDate2.getDate())
		return true;
		
	return false;
}