var maxJourneys=9;
var activeJourneys=0;
var defaultDuration=0;
var Journeys=new Array();
var ValidationControl;

function Journey(id,active) {
   this.id=id;
   this.active=active;
   this.departDate='';
   this.departMonth='';
   this.departYear='';
   this.departPointCode='';
   this.departPointText='';
   this.departTime='';
   this.arriveDate='';
   this.arriveMonth='';
   this.arriveYear='';
   this.arrivePointCode='';
   this.arrivePointText='';
   this.arriveTime='';
   this.drawJourney=drawJourney;
   this.synchJourney=synchJourney;
   this.getXML=getXML;
}

function drawJourney() {
   var elem;
   var d;
   var NoFrillsCheckBox;
   var FlexibleDatesCheckBox;
   var NonRestrictedFlightsCheckBox;
   var Ctrls;
   var i;

   if(this.active) {
      document.getElementById('Journey'+this.id).style.display='block';

      d='0'+this.departDate;
      d=d.substr(d.length-2,d.length);

      document.getElementById('selDepartDate'+this.id).value=d;
      document.getElementById('selDepartMonthYear'+this.id).value=(this.departYear*100)+this.departMonth;
      document.getElementById('txtDepartPointCode'+this.id).value=this.departPointCode;
      document.getElementById('txtDepartPointText'+this.id).value=this.departPointText;

      if (document.getElementById('selDepartTime'+this.id)) {
         document.getElementById('selDepartTime'+this.id).value=this.departTime;
      }

      document.getElementById('txtArrivePointCode'+this.id).value=this.arrivePointCode;
      document.getElementById('txtArrivePointText'+this.id).value=this.arrivePointText;

      if (document.getElementById('selArriveTime'+this.id)) {
         document.getElementById('selArriveTime'+this.id).value=this.arriveTime;
      }

      elem=document.getElementById('divAddJourney'+this.id);

      if (elem) {
         if (this.id==maxJourneys-1) {
            elem.style.display='none';
         }
         else if (this.id==activeJourneys-1) {
            elem.style.display='block';
         }
         else {
            elem.style.display='none';
         }
      }

      elem=document.getElementById('divRemoveJourney'+this.id);

      if (elem) {
         if ((this.id==0)&&(activeJourneys==1)) {
            elem.style.display='none';
         }
         else {
            elem.style.display='block';
         }
      }

      elem=document.getElementById('lblJourneyTitleJourney'+this.id);

      if (elem) {
         if (activeJourneys<=2) {
            if (this.id==0) {
               elem.innerHTML='Outbound';
            }
            else if (this.id==1) {
               elem.innerHTML='Inbound';
            }
            else {
               elem.innerHTML=(this.id+1)+'.';
            }
         }
         else {
            elem.innerHTML=(this.id+1)+'.';
         }
      }

      Ctrls=document.getElementsByTagName('INPUT');

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

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

      if (activeJourneys<=2) {
         if (NoFrillsCheckBox) {
            NoFrillsCheckBox.disabled=false;
         }
         if (FlexibleDatesCheckBox) {
            FlexibleDatesCheckBox.disabled=false;
         }
      }
      else {
         if (NoFrillsCheckBox) {
            NoFrillsCheckBox.checked=false;
            NoFrillsCheckBox.disabled=true;
         }
         if (FlexibleDatesCheckBox) {
            FlexibleDatesCheckBox.checked=false;
            FlexibleDatesCheckBox.disabled=true;
         }
         if (NonRestrictedFlightsCheckBox) {
            NonRestrictedFlightsCheckBox.disabled=false;
         }
      }
   }
   else {
      document.getElementById('Journey'+this.id).style.display='none';
   }
}

function synchJourney() {

   this.departDate=document.getElementById('selDepartDate'+this.id).value;
   this.departYear=Math.floor(document.getElementById('selDepartMonthYear'+this.id).value/100);
   this.departMonth=document.getElementById('selDepartMonthYear'+this.id).value%100;
   this.departPointCode=document.getElementById('txtDepartPointCode'+this.id).value;

   this.departPointText=document.getElementById('txtDepartPointText'+this.id).value;

   if (document.getElementById('cboDepartureTime'+this.id)) {
      this.departTime=document.getElementById('cboDepartureTime'+this.id).value;
   }

   this.arrivePointCode=document.getElementById('txtArrivePointCode'+this.id).value;
   this.arrivePointText=document.getElementById('txtArrivePointText'+this.id).value;

   if (document.getElementById('selArriveTime'+this.id)) {
      this.arriveTime=document.getElementById('selArriveTime'+this.id).value;
   }
}

function getXML() {
   var s='';
   var classType='';
   var Elem;

   Elem=document.getElementById('Class');

   if (Elem) {
      classType=Elem.value;
   }

   if (this.active) {
      s+='   <Journey>\n';
      s+='      <Number>'+(this.id+1)+'</Number>\n';
      s+='      <Departure>'+this.departPointCode+'</Departure>\n';
      s+='      <DepartureName>'+this.departPointText+'</DepartureName>\n';
      s+='      <Destination>'+this.arrivePointCode+'</Destination>\n';
      s+='      <DestinationName>'+this.arrivePointText+'</DestinationName>\n';
      s+='      <DepartureDate>'+this.departYear+((this.departMonth.toString().length<2)?'0':'')+this.departMonth+((this.departDate.toString().length<2)?'0':'')+this.departDate+'</DepartureDate>\n';
      s+='      <DepartTime>'+this.departTime+'</DepartTime>\n';
      s+='      <ArriveTime>'+this.arriveTime+'</ArriveTime>\n';

      s+='      <ClassType>\n';
      s+='         <Economy>'+((classType&16)?'True':'False')+'</Economy>\n';
      s+='         <PremiumEconomy>'+((classType&8)?'True':'False')+'</PremiumEconomy>\n';
      s+='         <Business>'+((classType&4)?'True':'False')+'</Business>\n';
      s+='         <First>'+((classType&2)?'True':'False')+'</First>\n';
      s+='         <Suite>'+((classType&1)?'True':'False')+'</Suite>\n';
      s+='      </ClassType>\n';

      s+='      <DeparturePoint>True</DeparturePoint>\n';
      s+='      <DestinationPoint>True</DestinationPoint>\n';
      s+='      <StopoverPoint>False</StopoverPoint>\n';
      s+='   </Journey>\n';
   }

   return s;
}

for (i=0;i<maxJourneys;i++) {
   Journeys[i]=new Journey(i,false);
}

function addJourney() {
   var tDate;
   var Elem;

   synchJourneys();
   if (activeJourneys<maxJourneys) {
      if (Journeys[activeJourneys-1].arriveDate!='') {
         Journeys[activeJourneys].departDate=Journeys[activeJourneys-1].arriveDate;
         Journeys[activeJourneys].departMonth=Journeys[activeJourneys-1].arriveMonth;
         Journeys[activeJourneys].departYear=Journeys[activeJourneys-1].arriveYear;
      }
      else {
         Journeys[activeJourneys].departDate=Journeys[activeJourneys-1].departDate;
         Journeys[activeJourneys].departMonth=Journeys[activeJourneys-1].departMonth;
         Journeys[activeJourneys].departYear=Journeys[activeJourneys-1].departYear;
      }

      tDate=new Date(Journeys[activeJourneys].departYear,Journeys[activeJourneys].departMonth-1,Journeys[activeJourneys].departDate);
      tDate.setDate(tDate.getDate()+defaultDuration);

      Journeys[activeJourneys].departYear=tDate.getFullYear();
      Journeys[activeJourneys].departMonth=tDate.getMonth()+1;
      Journeys[activeJourneys].departDate=tDate.getDate();

      Journeys[activeJourneys].departPointCode=Journeys[activeJourneys-1].arrivePointCode;
      Journeys[activeJourneys].departPointText=Journeys[activeJourneys-1].arrivePointText;

      Journeys[activeJourneys].active=true;
   }

   Elem=document.getElementById('cmdAddJourney');

   if (Elem) {
      if (activeJourneys<maxJourneys-1) {
         Elem.style.display='block';
      }
      else {
         Elem.style.display='none';
      }
   }

   drawJourneys();
   synchJourneys();
   drawJourneys();
}

function removeJourney(id) {
   synchJourneys();
   Journeys[maxJourneys]=new Journey(maxJourneys-1);
   var Elem;

   for (var i=id;i<maxJourneys;i++) {
      Journeys[i].active=Journeys[i+1].active;
      Journeys[i].departDate=Journeys[i+1].departDate;
      Journeys[i].departMonth=Journeys[i+1].departMonth;
      Journeys[i].departYear=Journeys[i+1].departYear;
      Journeys[i].departPointCode=Journeys[i+1].departPointCode;
      Journeys[i].departPointText=Journeys[i+1].departPointText;
      Journeys[i].departTime=Journeys[i+1].departTime;
      Journeys[i].arriveDate=Journeys[i+1].arriveDate;
      Journeys[i].arriveMonth=Journeys[i+1].arriveMonth;
      Journeys[i].arriveYear=Journeys[i+1].arriveYear;
      Journeys[i].arrivePointCode=Journeys[i+1].arrivePointCode;
      Journeys[i].arrivePointText=Journeys[i+1].arrivePointText;
      Journeys[i].arriveTime=Journeys[i+1].arriveTime;
   }
   drawJourneys();
   synchJourneys();
   drawJourneys();

   Elem=document.getElementById('cmdAddJourney');

   if (Elem) {
      if (activeJourneys<maxJourneys) {
         Elem.style.display='block';
      }
      else {
         Elem.style.display='none';
      }
   }
}

function drawJourneys() {
   for(var i=0;i<maxJourneys;i++) {
      Journeys[i].drawJourney();
   }
}

function buildRequest() {
   var s='';
   var Elem;

   s+='<Parameters>\n';

   synchJourneys();
   s+='   <Journeys>\n';

   for(var i=0;i<maxJourneys;i++) {
      s+=Journeys[i].getXML();
   }
   s+='   </Journeys>\n';

   s+='   <Airlines>\n';

   Elem=document.getElementById('Airline');

   if (Elem) {
      if (Elem.value!='') {
         s+='<Airline>'+Elem.value+'</Airline>\n';
      }
   }
   s+='   </Airlines>\n';

   s+='   <FareTypes>\n';
   s+='   </FareTypes>\n';

   s+='   <Passengers>\n';
   s+='      <Adults>\n';
   s+='         <Quantity>';
   s+=document.getElementById('Adults').value;
   s+='</Quantity>\n';
   s+='      </Adults>\n';
   s+='      <Children>\n';
   s+='         <Quantity>';
   s+=document.getElementById('Children').value;
   s+='</Quantity>\n';
   s+='      </Children>\n';
   s+='      <Infants>\n';
   s+='         <Quantity>';
   s+=document.getElementById('Infants').value;
   s+='</Quantity>\n';
   s+='      </Infants>\n';
   s+='   </Passengers>\n';

   s+='   <DirectFlights>';

   Elem=document.getElementById('chkDirect');

   if (Elem) {
      if (Elem.checked) {
         s+='True';
      }
      else {
         s+='False';
      }
   }
   else {
      s+='False';
   }

   s+='   </DirectFlights>\n';

   s+='   <MaximumConnectTime>';

   Elem=document.getElementById('cboMaxConnectHours');

   if (Elem) {
      s+='      <Hours>'+Elem.value+'</Hours>';
   }

   Elem=document.getElementById('cboMaxConnectMinutes');

   if (Elem) {
      s+='      <Minutes>'+Elem.value+'</Minutes>';
   }

   s+='   </MaximumConnectTime>\n';
   s+='   <CacheText>True</CacheText>';
   s+='   <ShowCurrency>True</ShowCurrency>';
   s+='   <AddFilters></AddFilters>';
   s+='</Parameters>\n';

   document.getElementById('txtDirectXML').value=s;
}

function validateJourneys() {
   var xmlHttp;
   var submitXML;
   var xNode;

   synchJourneys();
   buildRequest();

   submitXML=document.getElementById('txtDirectXML').value;

   if(window.XMLHttpRequest) {
      xmlHttp=new XMLHttpRequest();
   }
   else if(window.ActiveXObject) {
      xmlHttp=new ActiveXObject("Microsoft.XMLHTTP");
   }

   submitXML='request='+submitXML.replace(/ /g,'+');

   xmlHttp.open('POST', 'tripbuilder/ajax.asp',false);
   xmlHttp.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded');

   xmlHttp.send(submitXML);

   if (xmlHttp.readyState==4) {
      responseXml=HtmlDecode(xmlHttp.responseText);

      if (window.ActiveXObject) {
        xValidated=new ActiveXObject('Microsoft.XMLDOM');
        xValidated.loadXML(responseXml);
      }
      else {
        var parser=new DOMParser();
        xValidated=parser.parseFromString(responseXml,'text/xml');
      }

      xNode=xValidated.selectSingleNode('//*[@validationmessage]');

      if (xNode) {
         if (xNode.selectSingleNode('@validationindex')) {
            j=xNode.selectSingleNode('@validationindex').text;
         }
         else {
            j=0;
         }
         ShowValidationMessage(xNode.nodeName,j,xNode.selectSingleNode('@validationmessage').text);
         return false;
      }
      else {
         document.getElementById('txtDirectXML').value=responseXml;
         return true;
      }
   }
   return false;
}

function synchJourneys() {
   activeJourneys=0;
   for (var i=0;i<maxJourneys;i++) {
      Journeys[i].synchJourney();
      activeJourneys+=(Journeys[i].active?1:0);
   }
}

function submitSearch() {
   var submitOK=false;

   submitOK=validateJourneys();

   if (submitOK) {

      if(typeof modalloading=='function') {
         modalloading('Please wait while we verify the fare you have selected.');
      }
      else {
         if(document.getElementById('SearchTable') && document.getElementById('SearchingLayer')) {
            savedSearchTable=document.getElementById('SearchTable').innerHTML;
            document.getElementById('SearchTable').innerHTML=document.getElementById('SearchingLayer').innerHTML;
         }
      }

      if (document.getElementById('EnquiryForm')) {
         document.getElementById('EnquiryForm').submit();
      }
   }
}


function ShowValidationMessage(lType, lIndex, lMessage) {
   var MessageDiv;
   var Ctrl;
   var Posn;

   switch (lType) {
      case 'Departure': {
         Ctrl=document.getElementById('txtDepartPointText'+lIndex);
         break;
      }

      case 'Destination': {
         Ctrl=document.getElementById('txtArrivePointText'+lIndex);
         break;
      }

      case 'DepartureDate': {
         Ctrl=document.getElementById('selDepartDate'+lIndex);
         break;
      }

      case 'Passengers': {
         Ctrl=document.getElementById('Adults');
         break;
      }

      case 'Adults': {
         Ctrl=document.getElementById('Adults');
         break;
      }

      case 'Infants': {
         Ctrl=document.getElementById('Infants');
         break;
      }
   }

   if (Ctrl) {
      ValidationControl=Ctrl;
      Ctrl.focus();

      MessageDiv=document.getElementById('divValidationMessage');
      if (!MessageDiv) {
         MessageDiv=document.createElement('DIV');
         MessageDiv.id='divValidationMessage';
         MessageDiv.style.zIndex='200';
         MessageDiv.style.left='0px';
         MessageDiv.style.right='0px';
         MessageDiv.className='ValidationMessage';
         document.body.appendChild(MessageDiv);
      }

      Posn=FindPos(Ctrl);

      MessageDiv.style.display='block';
      MessageDiv.style.left=(Posn[0]+Ctrl.offsetWidth)+'px';
      MessageDiv.style.top=(Posn[1]-12)+'px';
      MessageDiv.innerHTML=lMessage;
      MessageDiv.innerHTML+='<BR /><INPUT value="OK" style="float:right; font-size:12px" onclick="HideValidationMessage();" type="button" />';
   }
}

function HideValidationMessage() {
   var MessageDiv;

   MessageDiv=document.getElementById('divValidationMessage');

   if (MessageDiv) {
      MessageDiv.style.display='none';
   }
   if (ValidationControl) {
      ValidationControl.focus();
   }
}

function SetReturnDate() {
   var tDate;
   var d;

   if (activeJourneys==2) {
      Journeys[0].synchJourney();

      tDate=new Date(Journeys[0].departYear,Journeys[0].departMonth-1,Journeys[0].departDate);

      tDate=new Date(tDate.getFullYear(),tDate.getMonth(),tDate.getDate()+defaultDuration);

      d='0'+tDate.getDate();
      d=d.substr(d.length-2,d.length);

      document.getElementById('selDepartDate1').value=d;
      document.getElementById('selDepartMonthYear1').value=tDate.getFullYear()*100+tDate.getMonth()+1

      Journeys[1].synchJourney();
   }
}