/******************************

  * Editable section -- Start --

  ******************************/

  // DATE SETTINGS - EDIT AS REQUIRED

  var daysinAdvance = 1; // Sets default days in advance from current date

  var numberNights = 1;  // Sets default number of nights

  var numberYears = 4; // Sets default number of years to display in year select list

  var numberNightsMin = 1; // Sets minimum number of nights accepted

  var imgDir = "images/"; // Directory for the dynamic calendar script and images. Trailing slash must be included.



  // FLAG SETTINGS ON/OFF - SET TO 1 FOR ON & 0 FOR OFF

  var wdDisplay = 1; //weekday display

  var numberNightsDisplay = 1; //number of nights display

  var departDateDisplay = 0; //departure dates display

  var departDateUpdate = 1; //auto update departure date



  // WEEK DAY AND NUMBER NIGHTS TEXT - EDIT TEXT AS REQUIRED

  var wdArray = new Array("Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat");

  var nightTxt = " Night";

  var nightsTxt = " Nights";



  // ERROR MESSAGE TEXT - EDIT TEXT AS REQUIRED

  var invalidDateTxt = "Invalid Arrival Date. Please check number of days selected";

  var invalidDatePriorTxt = "Arrival Date selected is prior Today's date. Please change...";

  var invalidDepartDateTxt = "Invalid Departure Date. Please check number of days selected";

  var invalidDepartTxt = "Departure Date is prior to Arrival Date selected. Please change...";

  var invalidNightsTxt = "Sorry, reservations under "+numberNightsMin+" nights are not accepted.";

  /******************************

  * Editable section -- End --

  ******************************/



  /**************************************************

  * DO NOT CHANGE JAVASCRIPT SETTINGS BELOW THIS LINE

  **************************************************/

  //Days in each month Array

  var aNumDays = new Array (31,0,31,30,31,30,31,31,30,31,30,31);



  //Cancel out if no departure date display

  if(departDateDisplay == 0) {

    numberNightsDisplay = 0;

    departDateUpdate = 0;

  }



  //Sets dates selected from dyncalendar

  function calendarCallback(day, month, year, objName, formName) {

    if(objName == "calendarArrive"){

      document.forms[formName].fd.selectedIndex = day-1;

      document.forms[formName].fm.selectedIndex = month-1;

      document.forms[formName].fy.selectedIndex = year - document.forms[formName].fy.options[0].text;

      updateDates(document.forms[formName]);

      if(wdDisplay == 1 && departDateDisplay == 1) setWkd(formName, 1);

    }else{  //objName == calendarDepart

      document.forms[formName].td.selectedIndex = day-1;

      document.forms[formName].tm.selectedIndex = month-1;

      document.forms[formName].ty.selectedIndex = year - document.forms[formName].ty.options[0].text;

      if(wdDisplay == 1 && departDateDisplay == 1) setWkd(formName, 1);

    }

  }



  //Update form with selected dates

  function updateDates(form, loadDates) {

    //check Leap Year

    if(form.fm.selectedIndex==1)  {

      var leapYear  = new Date (form.fy.options[form.fy.selectedIndex].text,form.fm.selectedIndex+1,1);

      var leapYear  = new Date (leapYear  - (24*60*60*1000));

      var numDaysInMonth = leapYear.getDate();

    }else{

      var numDaysInMonth = aNumDays[form.fm.selectedIndex];

    }

    // Update departure date only when loading the form and/or departDateUpdate is set to 1

    if(loadDates == 1 || departDateUpdate == 1) {

      var selectDate = new Date(form.fy.options[form.fy.selectedIndex].text, form.fm.selectedIndex, form.fd.selectedIndex);

      var setDate = new Date(selectDate.getTime() + ((numberNights+1) * 86400000));

      var setDay = setDate.getDate();

      var setMonth = setDate.getMonth();

      var setYear = setDate.getFullYear() - form.fy.options[0].text;

      var checkinDate = new Date(form.fy.options[form.fy.selectedIndex].text,form.fm.selectedIndex,form.fd.selectedIndex+1);

      var checkoutDate = new Date(form.ty.options[form.ty.selectedIndex].text,form.tm.selectedIndex,form.td.selectedIndex+1);

      if(checkinDate > checkoutDate) {

        if(setYear == form.ty.length) {

          form.td.options[30].selected=1;

          form.tm.options[11].selected=1;

          form.ty.options[form.ty.length-1].selected=1;

        } else {

          form.td.options[setDay-1].selected=1;

          form.tm.options[setMonth].selected=1;

          form.ty.options[setYear].selected=1;

        }

      }

    }

    if(form.fd.selectedIndex+1 > numDaysInMonth) {

      alert(invalidDateTxt);

      form.fd.selectedIndex = numDaysInMonth-1;

    }

  }



  function setWkd(form, calendar) {

    // change form object if returned from calendar

    if(calendar) form = document.forms[form];

    for (var i = 0; i < form.fy.length; i++) {

      if (form.fy.options[i].selected) var fyear = form.fy.options[i].text;

      if (departDateDisplay == 1 && form.ty.options[i].selected) var tyear = form.ty.options[i].text;

    }

    var checkinDate = new Date(fyear,form.fm.selectedIndex,form.fd.selectedIndex+1);

    if (departDateDisplay == 1) var checkoutDate = new Date(tyear,form.tm.selectedIndex,form.td.selectedIndex+1);

    var numNights = Math.round((checkoutDate - checkinDate) / 86400000);

    if (numNights == 1) numNights += nightTxt;

    else numNights += nightsTxt;

    //Set Days of the week display

    if(wdDisplay == 1 && document.getElementById) {

      document.getElementById('inWd').firstChild.nodeValue = '(' + wdArray[checkinDate.getDay()] + ')';

      if (departDateDisplay == 1) document.getElementById('outWd').firstChild.nodeValue = '(' + wdArray[checkoutDate.getDay()] + ')';

    }

    //Set number of nights display

    if(numberNightsDisplay == 1 && document.getElementById) document.getElementById('lengthStay').firstChild.nodeValue = numNights;

  }



  //Load current dates on form load

  function LoadDates(form) {

    var curDate = new Date();

    var setDate = new Date(curDate.getTime() + (daysinAdvance * 86400000));

    var setDay = setDate.getDate();

    var setMonth = setDate.getMonth();

    var setYear = setDate.getFullYear() - form.fy.options[0].text;

    // Set Arrival Dates

    form.fd.selectedIndex = setDay-1;

    form.fm.selectedIndex = setMonth;

    form.fy.selectedIndex = setYear;

    // Set the Departure Dates

    updateDates(form, departDateDisplay);

    if(wdDisplay == 1 || numberNightsDisplay == 1) setWkd(form);

  }



  //Load current dates on form load

  function checkDates(form) {

    var curDate = new Date();

    for (var i = 0; i < form.fy.length; i++) {

      if (form.fy.options[i].selected) var fyear = form.fy.options[i].text;

      if (departDateDisplay == 1 && form.ty.options[i].selected) var tyear = form.ty.options[i].text;

    }

    var checkinDate = new Date(fyear,form.fm.selectedIndex,form.fd.selectedIndex+2);

    if (departDateDisplay == 1) {

      if(form.tm.selectedIndex==1)  {

        var leapYear  = new Date (form.ty.options[form.ty.selectedIndex].text,form.tm.selectedIndex+1,1);

        var leapYear  = new Date (leapYear  - (24*60*60*1000));

        var numDaysInMonth = leapYear.getDate();

      }else{

        var numDaysInMonth = aNumDays[form.tm.selectedIndex];

      }

      if(form.td.selectedIndex+1 > numDaysInMonth) {

        alert(invalidDepartDateTxt);

        form.td.selectedIndex = numDaysInMonth-1;

        return false;

      }

      var checkoutDate = new Date(tyear,form.tm.selectedIndex,form.td.selectedIndex+2);

      var numNights = Math.round((checkoutDate - checkinDate) / 86400000);

    } else {

      var numNights = form.numnights.selectedIndex+1;

    }

    if(checkinDate.getTime() < curDate.getTime()) {

      alert(invalidDatePriorTxt);

      return false;

    }

    if(numNights < 1) {

      alert(invalidDepartTxt );

      return false;

    }

    if(numNights < numberNightsMin) {

      alert(invalidNightsTxt);

      return false;

    }

  }



  //Generate years options for year select list

  function year_option(form){

    curDate = new Date();

    curYear = curDate.getFullYear();

    for(i = curYear ; i <= curYear+(numberYears-1) ; i++ ){

      document.write('<option value="' + i + '">' + i + '</option>');

    }

  }