var http_airport_request=false;

var PassengerTypes=new Object();

var activeSearchType='flight';

function PassengerType(lPTC,lSimpleType) {
   this.ptc=lPTC;
   this.simpleType=lSimpleType;
   this.adult=(lSimpleType=='Adult');
   this.infant=(lSimpleType=='Infant');
}

function CheckPTCStacking(lPassengerTypeControls) {
   var i;
   var ptc;
   var stack=0;

   for (i=0;i<lPassengerTypeControls.length;i++) {
      ptc=lPassengerTypeControls[i].value;

      if (ptc!='') {
         if (PassengerTypes[ptc]) {
            stack+=PassengerTypes[ptc].adult;
            stack-=PassengerTypes[ptc].infant;
         }
      }
   }
   return (stack>=0);
}

function PassengerTypeChange(obj,i) {
   if (document.getElementById('chkStrict'+i)) {
      if (obj.value=='') {
         document.getElementById('chkStrict'+i).checked=false;
      }
      else {
         if ((obj.value!='ADT') && (obj.value!='INF')) {
            document.getElementById('chkStrict'+i).checked=true;
         }
         else {
            document.getElementById('chkStrict'+i).checked=false;
         }
      }
   }
   checkPTCs(i);
}


function checkPTCs(idx) {
   for(i=0;i<document.getElementsByName('PassengerType').length;i++) {
      if (i!=idx) {
         if (document.getElementsByName('PassengerType')[i].value!='') {
            if (document.getElementsByName('PassengerType')[i].value==document.getElementsByName('PassengerType')[idx].value) {
               document.getElementById('chkStrict'+i).checked=document.getElementById('chkStrict'+idx).checked;
            }
         }
      }
   }
}

function updateDepartureAirports(lCountry){
   if(document.getElementsByName('DepartAirport')){

      while (document.getElementById('DepartAirport').options.length) {
         document.getElementById('DepartAirport').remove(0);
      }

      element = document.createElement('OPTION');
      element.value = "";
      element.text = "Please wait . . .";
      document.getElementById('DepartAirport').options.add(element);

      http_airport_request = false;

      if (window.XMLHttpRequest) { // Mozilla, Safari,...
         http_airport_request = new XMLHttpRequest();
         if (http_airport_request.overrideMimeType) {
            http_airport_request.overrideMimeType('text/xml');
         }
      } else if (window.ActiveXObject) { // IE
         try {
            http_airport_request = new ActiveXObject("Msxml2.XMLHTTP");
         } catch (e) {
            try {
               http_airport_request = new ActiveXObject("Microsoft.XMLHTTP");
            } catch (e) {}
         }
      }
      if (!http_airport_request) {
         alert('Cannot create XMLHTTP instance');
         return false;
      }

      http_airport_request.onreadystatechange = updateDepartureAirportsList;

      http_airport_request.open("GET", "ajax/ajax-functions.asp?ft=DepartureAirportsByCountry&fp=" + lCountry + "&fl=true", true);
      http_airport_request.send(null);

   }
}

function updateDepartureAirportsList() {
   if (http_airport_request.readyState == 4) {

      if (http_airport_request.status == 200) {

         while (document.getElementById('DepartAirport').options.length) {
            document.getElementById('DepartAirport').remove(0);
         }

         if (window.ActiveXObject) { // IE
            var doc = http_airport_request.responseText;
            var xDoc = new ActiveXObject("Microsoft.XMLDOM");
            xDoc.loadXML(doc);
         } else {
            var xDoc = http_airport_request.responseXML;
         }

         var xValue = xDoc.getElementsByTagName("Value");
         var xText = xDoc.getElementsByTagName("Text");

         for (j=0;j<xValue.length;j++){
            element = document.createElement('OPTION');
            element.value = xValue[j].childNodes[0].nodeValue;
            element.text = xText[j].childNodes[0].nodeValue;
            document.getElementById('DepartAirport').options.add(element);
         }

      } else {
         alert(http_airport_request.status);
      }
   }
}

function clickToCancelSearch(){
   document.execCommand('Stop');

   if(document.getElementById('SearchTable') && document.getElementById('SearchingLayer')) {
      document.getElementById('SearchTable').innerHTML = savedSearchTable;
      document.getElementById('SearchingLayer').style.display = "none";
   }
}


function CheckJourneyType() {
   if (IsOneWay()) {
      if(document.getElementById('cboReturnTime')){
         document.getElementById('cboReturnTime').disabled=true;
         GetDateControlById('txtReturnDate').Disable();
      }
   }
   else {
      if(document.getElementById('cboReturnTime')){
         document.getElementById('cboReturnTime').disabled=false;
         GetDateControlById('txtReturnDate').Enable();
      }
   }
}

function IsOneWay() {
   var journeyType='';

   if(document.getElementById('JourneyType')) {
      if (document.getElementsByName('JourneyType')) {
         if(document.getElementsByName('JourneyType').length>1) {
            for(i=0; i<document.getElementsByName('JourneyType').length; i++) {
               if(document.getElementsByName('JourneyType')[i].checked) {
                  journeyType=document.getElementsByName('JourneyType')[i].value;
               }
            }
         }
         else {
            journeyType=document.getElementsByName('JourneyType')[0].value;
         }
      }
      return (journeyType=='O');
   }
   else {
      return false;
   }
}

function UpdateIBDestinationPoint(lObj) {
   if(document.getElementById("IBDestinationAirport")) {
      document.getElementById("IBDestinationAirport").value = lObj.value;
   }
}

function UpdateFlexDays() {
   var elem;

   elem=document.getElementById('FlexDays');

   if (elem) {
      if (document.getElementById('chkFlexDays').checked) {
         elem.value='3';
      }
      else {
         elem.value='';
      }
   }
}

function SearchTypeOver(lType) {

   var Elem;

   switch(lType) {
      case 'flight':
         Elem=document.getElementById('FlightSearch');
         if (Elem) {
            Elem.className='FlightSearch FlightSearchActive';
         }
         break;

      case 'hotel':
         Elem=document.getElementById('HotelSearch');
         if (Elem) {
            Elem.className='HotelSearch HotelSearchActive';
         }
         break;

      case 'car':
         Elem=document.getElementById('CarSearch');
         if (Elem) {
            Elem.className='CarSearch CarSearchActive';
         }
         break;
   }
}

function SearchTypeOut(lType) {

   var Elem;

   switch(lType) {
      case activeSearchType:
         break;

      case 'flight':
         Elem=document.getElementById('FlightSearch');
         if (Elem) {
            Elem.className='FlightSearch';
         }
         break;

      case 'hotel':
         Elem=document.getElementById('HotelSearch');
         if (Elem) {
            Elem.className='HotelSearch';
         }
         break;

      case 'car':
         Elem=document.getElementById('CarSearch');
         if (Elem) {
            Elem.className='CarSearch';
         }
         break;
   }
}


function SearchTypeClick(lType) {

   var DivFlightSearch;
   var DivFlightSearchMenu;
   var DivHotelSearch;
   var DivCarSearch;
   var current;

   current=activeSearchType;
   activeSearchType=lType;
   SearchTypeOut(current);

   DivFlightSearch=document.getElementById('DivFlightSearch');
   DivFlightSearchMenu=document.getElementById('DivFlightSearchMenu');
   DivHotelSearch=document.getElementById('DivHotelSearch');
   DivCarSearch=document.getElementById('DivCarSearch');

   switch(lType) {
      case 'flight':
         DivFlightSearch.style.display='block';
         DivFlightSearchMenu.style.display='block'
         DivHotelSearch.style.display='none';
         DivCarSearch.style.display='none';
         break;

      case 'hotel':
         DivFlightSearch.style.display='none';
         DivFlightSearchMenu.style.display='none'
         DivHotelSearch.style.display='block';
         DivCarSearch.style.display='none';
         break;

      case 'car':
         DivFlightSearch.style.display='none';
         DivFlightSearchMenu.style.display='none'
         DivHotelSearch.style.display='none';
         DivCarSearch.style.display='block';
         break;

      break;
   }
}

function CheckFlexVersusNoFrills(evt) {
   var Event;
   var Ctrl;
   var NoFrillsCheckBox;
   var FlexDaysCheckBox;
   var NoFrillsCheckBoxId='';
   var NonRestrictedFlightsCheckBox;
   var Ctrls;
   var i;

   Event=evt||window.event;

   if(Event.target) {
      Ctrl=Event.target;
   }
   else {
      if (Event.srcElement) {
         Ctrl=Event.srcElement;
      }
   }

   Ctrls=document.getElementsByTagName("INPUT");

   for(i=0;i<Ctrls.length;i++) {
      if ((Ctrls[i].name=='CSearchType') && (Ctrls[i].value=='L')) {
         NoFrillsCheckBox=Ctrls[i];
         NoFrillsCheckBoxId=NoFrillsCheckBox.id;
         break;
      }
   }

   FlexDaysCheckBox=document.getElementById('chkFlexDays');
   NonRestrictedFlightsCheckBox=document.getElementById('chkNonRestricted');

   switch (Ctrl.id) {

      case 'chkNonRestricted':
      case 'chkFlexDays':
         if ((FlexDaysCheckBox.checked)||(NonRestrictedFlightsCheckBox.checked)) {
            if (NoFrillsCheckBox) {
               NoFrillsCheckBox.checked=false;
               NoFrillsCheckBox.disabled=true;
            }
         }
         else {
            if (NoFrillsCheckBox) {
               try {
                  if (activeJourneys>2) {
                     NoFrillsCheckBox.disabled=true;
                  }
                  else {
                     NoFrillsCheckBox.disabled=false;
                  }
               }
               catch (e) {
               	NoFrillsCheckBox.disabled=false;
               }
            }
         }
         break;

      case NoFrillsCheckBoxId:
         if (NoFrillsCheckBox.checked) {
            if (FlexDaysCheckBox) {
               FlexDaysCheckBox.checked=false;
               FlexDaysCheckBox.disabled=true;
            }
            if (NonRestrictedFlightsCheckBox) {
               NonRestrictedFlightsCheckBox.checked=false;
               NonRestrictedFlightsCheckBox.disabled=true;
            }
         }
         else {
            if (FlexDaysCheckBox) {
               FlexDaysCheckBox.disabled=false;
            }
            if (NonRestrictedFlightsCheckBox) {
               NonRestrictedFlightsCheckBox.disabled=false;
            }
         }
         break;

   }
}