/* T&T calendar*/
var flag_cal;

function setDates() {
  now = new Date();
  dep = new Date();
  ret = new Date(); 
  dep.setTime(now.getTime()+60000*60*24*3);
  ret.setTime(now.getTime()+60000*60*24*6);
  var m1 = dep.getMonth()+1;      
  var d1   = dep.getDate();  
  var m2 = ret.getMonth()+1;   
  var d2   = ret.getDate();
  var y1 = dep.getYear();
  var y2 = ret.getYear();
  m1 = m1 < 10 ? '0' + m1 : m1;
  m2 = m2 < 10 ? '0' + m2 : m2;
  d1 = d1 < 10 ? '0' + d1 : d1;
  d2 = d2 < 10 ? '0' + d2 : d2;
  y1 = y1 < 1000 ? y1 + 1900 : y1;
  y2 = y2 < 1000 ? y2 + 1900 : y2;  
  document.SearchFare.depart_date.value=m1+'/'+d1+'/'+y1;
  document.SearchFare.return_date.value=m2+'/'+d2+'/'+y2; 
  document.SearchFare.trip_type[0].checked = true;
}

function saveCurrentData() 
{   
	var agent_flag = 0;
	var ac2u_flag = 0;
	for(i=0; i<document.SearchFare.elements.length; i++)
	{
		if (document.SearchFare.elements[i].name == 'agent_id'){
			agent_flag = 1;
		}
		if (document.SearchFare.elements[i].name == 'ac2u'){
			ac2u_flag = 1;
		}
		//document.write("The field name is: " + document.SearchFare.elements[i].name + " and it’s value is: " + document.SearchFare.elements[i].value + ".<br />");
	}
    var trip = document.SearchFare.trip_type[0].checked?1:0;
	if (document.SearchFare.trip_type[2].checked){
		trip = 2;
	}		
	var data = '';
	data = document.SearchFare.gateway_dep.value;
	data += ":" + document.SearchFare.gateway_ret.value;    	
	data += ":" + trip;
	data += ":" + document.SearchFare.depart_date.value;
	data += ":" + document.SearchFare.return_date.value;
	data += ":" + document.SearchFare.adult.value;
	data += ":" + document.SearchFare.child.value;
	data += ":" + document.SearchFare.infant.value;	
    data += ":" + document.SearchFare.cls.value;
	data += ":" + document.SearchFare.gateway_departure.value; 
	data += ":" + document.SearchFare.gateway_return.value; 
	data += ":" + document.SearchFare.dest_dep.value; 
	data += ":" + document.SearchFare.dest_ret.value; 
	data += ":" + document.SearchFare.dest_departure.value; 
	data += ":" + document.SearchFare.dest_return.value; 		
	data += ":" + document.SearchFare.client_ref.value;
    	data += ":" + document.SearchFare.currency.value;
	if (ac2u_flag)
	{
		data += ":" + document.SearchFare.ac2u.value;
	}
	if (agent_flag)
	{
		//alert(document.SearchFare.agent_id.value);
		data += ":" + document.SearchFare.agent_id.value;
	}
	document.cookie= "fn_query=" + escape(data) + ";path=/";
	//alert(data);
}


function set_date_from_cookie() 
{	
	var datacookie = document.cookie;
	var prefix = "fn_query=";
	var begin = datacookie.indexOf(prefix);	
	if (begin >= 0 )
	{        
	    var data = unescape(datacookie.substring(begin+prefix.length));        
        var fn_cookies= data.split(";");
		var arrdata= fn_cookies[0].split(":");        
		document.SearchFare.gateway_dep.value =arrdata[0];
		document.SearchFare.gateway_ret.value =arrdata[1];
		document.SearchFare.gateway_departure.value =arrdata[9];
		document.SearchFare.gateway_return.value =arrdata[10];
        document.SearchFare.trip_type[0].checked = true;               
		document.SearchFare.depart_date.value =arrdata[3];
	if(arrdata[4] == null || arrdata[4] == '') {
		arrdata[4] = add_days(arrdata[3],3);
	}
        document.SearchFare.return_date.value =arrdata[4];
		document.SearchFare.adult.value =arrdata[5];
        document.SearchFare.child.value =arrdata[6];
		document.SearchFare.infant.value =arrdata[7];
        document.SearchFare.cls.value =arrdata[8];        
	}
	
}


function getCurrentDate() {
  now = new Date();  
  var m1 = now.getMonth()+1;      
  var d1 = now.getDate();    
  var y1 = now.getYear(); 
  m1 = m1 < 10 ? '0' + m1 : m1;  
  d1 = d1 < 10 ? '0' + d1 : d1;  
  y1 = y1 < 1000 ? y1 + 1900 : y1; 
  
  var date = m1+'/'+d1+'/'+y1; 
  return(date); 
}

function compareDate(date1,date2,type) {
 // var calRE = getFormat();

    var dStr1 = date1.substring(6,10) + "" + date1.substring(0,2) + "" + date1.substring(3,5);
    var dStr2 = date2.substring(6,10) + "" + date2.substring(0,2) + "" + date2.substring(3,5);
        
  if (dStr1 == dStr2)
  {   
    return 0;
  }
  else if (dStr1 < dStr2 && type == 1)
  {   
    return 1;
  }
  else if (dStr1 > dStr2 && type == 2)
  {   
    return 1;
  }
  else {
    return -1;
  }
}

function chkNumofDays(date){
     //Get 1 day in milliseconds
    var one_day=1000*60*60*24;
    var today=new Date();
    var sel_date=new Date(date.substring(6,10),date.substring(0,2)-1,date.substring(3,5));
    
    //Calculate difference btw the two dates, and convert to days
    var diff = Math.ceil((sel_date.getTime()-today.getTime())/(one_day));
    //alert(diff);
    return diff;
}

function setReturnDate(){       
    var date = document.SearchFare.depart_date.value;  
    var dep =new Date(date.substring(6,10),date.substring(0,2)-1,date.substring(3,5));
    dep.setTime(dep.getTime()+60000*60*24*7);
    var m1 = dep.getMonth()+1;      
    var d1 = dep.getDate();    
    var y1 = dep.getYear();
 
    m1 = m1 < 10 ? '0' + m1 : m1; 
    d1 = d1 < 10 ? '0' + d1 : d1; 
    y1 = y1 < 1000 ? y1 + 1900 : y1;
  
    document.SearchFare.return_date.value=m1+'/'+d1+'/'+y1;    
}

function checksyntax(date)
{
    var now = new Date();
    var y = now.getYear(); 
    y = y < 1000 ? y + 1900 : y;    
    if (date.substring(2,3) != '/')
    {
        date = '0' + date
    }
    if (date.substring(5,6) != '/')
    {
        date = date.substring(0,3) + '0' + date.substring(3,10)
    }
    
    if (date.length != 10)
    {
        date = date.substring(0,6) + y;
    }

    if (date.substring(2,3) != '/' && date.substring(5,6) != '/')
    {
        return 1;
    }    
    else
    {
    return date;
    }
}

function is_valid_airport(id) {

   var city = document.getElementById(id).value;   
   if ( city.length < 3 )  {
      alert('Please make sure you have selected the right ' + id + ' airport');
      return false;
   }

   var code = city.toUpperCase();

   if ( code.length < 3 )  {
      alert('Please make sure you have selected the right ' + id + ' airport');
      return false;
   }

   if ( city.length >= 3 ) {
      var code = city.replace(/.*\((...)\)/, "$1").toUpperCase();
   }
   
   if ( code.length == 3 ) {   	
   	if (id == "gateway_departure"){
      		document.SearchFare.gateway_dep.value = code;
	}
	if (id == "gateway_return"){
      		document.SearchFare.gateway_ret.value = code;
	}
	if (id == "dest_departure"){
      		document.SearchFare.dest_dep.value = code;
	}
	if (id == "dest_return"){
      		document.SearchFare.dest_ret.value = code;
	}
      return true;
   }

   alert('Please make sure you have selected the right airport');
   return false;
}

function get_xhttp_object(){
	var http_request = false;
    if (window.XMLHttpRequest)
	{ //all but IE
        http_request = new XMLHttpRequest();
        if (http_request.overrideMimeType)
		{
            http_request.overrideMimeType('text/xml');
        }
    }
	else if (window.ActiveXObject)
	{ //IE
        try {
            http_request = new ActiveXObject("Msxml2.XMLHTTP");
        } catch (e) {
            try {
                http_request = new ActiveXObject("Microsoft.XMLHTTP");
            } catch (e) {}
        }
    }
	if (!http_request)
	{
        alert("http_request could not be established.");
        return false;
    }
	return http_request;
}

function is_search_code(id) {

    var search_id = document.getElementById(id).value;
    if (search_id.length <= 3) {

                http_request = get_xhttp_object();
            if (http_request.overrideMimeType) {
            
                http_request.overrideMimeType('text/html');
            }
    	    var url = '/cgi-bin/b2c-v3/get_airport_new.cgi?q='+search_id+
	                '&limit=50&'+id+'='+search_id+
	                '&timestamp='+new Date().getTime();
	            http_request.open('GET',url,false);
	            http_request.send(null);
	        if ( http_request.status == 200 ) {
		        var response = http_request.responseText;	

                var list = response.split("\n");
                var re = new RegExp(search_id.toUpperCase());
                var rsp;
                
                    for (i=0; i< list.length; i++)
                    {
                         if (list[i].match(re,"i")) {
                        
                            rsp = list[i];
                            rsp = rsp.replace(/[\s]+$/,'');
                            document.getElementById(id).value = rsp; 
                            break;
                        }
                    }
               
                if (i == list.length) {
                                       
                   rsp = response.match("^(.+)\n")[0];
                    rsp = rsp.replace(/[\s]+$/,'');
                   document.getElementById(id).value = rsp;
                }
                var code = rsp.toUpperCase();
                if ( rsp.length >= 3 ) {
                   var code = rsp.replace(/.*\((...)\)/, "$1").toUpperCase();
	            	
                   	if (id == "gateway_departure"){
                      		document.SearchFare.gateway_dep.value = code;
	                }
	                if (id == "gateway_return"){
                      		document.SearchFare.gateway_ret.value = code;
	                }
	                if (id == "dest_departure"){
                      		document.SearchFare.dest_dep.value = code;
	                }
	                if (id == "dest_return"){
                      		document.SearchFare.dest_ret.value = code;
	                }
                  }
                  return true;    
	       }
	       return true;
    }
}

function ValidateDate() {
    if(!is_valid_airport('gateway_departure')) { document.getElementById('gateway_departure').focus(); return false; }
    if(!is_valid_airport('gateway_return')) { document.getElementById('gateway_return').focus(); return false; }
    
     //Gateway Departure
		is_search_code("gateway_departure");
    //Gateway Return
        is_search_code("gateway_return");  
        
    if (document.SearchFare.trip_type[2].checked){
    	if(!is_valid_airport('dest_departure')) { document.getElementById('dest_departure').focus(); return false;}
    	if(!is_valid_airport('dest_return')) { document.getElementById('dest_return').focus(); return false;}
    	
    	//Destination Departure
    	 is_search_code('dest_departure');
    	 
    	//Destination Return 
         is_search_code('dest_return'); 
    }
    if (!(document.SearchFare.trip_type[0].checked || document.SearchFare.trip_type[1].checked ||
    document.SearchFare.trip_type[2].checked))
    {
        alert('Please select the Trip type');
        return false;
    }
    if (document.SearchFare.depart_date.value.length > 0) {
        var date = document.SearchFare.depart_date.value;
        if (date.substring(0,2) > 12){
            alert('The Depart Date Format is Incorrect.  Please enter the date in this format MM/DD/YYYY')
            return false;
        }
    }
    else {
	    alert('You must select a departing date');
	    return false;
    }

    if (document.SearchFare.depart_date.value == 'mm/dd/yyyy')
    {
        alert('Please Select Departure Date');
        document.SearchFare.depart_date.focus();
        return false;
    }
    else if (checksyntax(document.SearchFare.depart_date.value) == 1)
    {
        alert('The Depart Date Format is Incorrect')
        return false;
    }
    else
    {
        document.SearchFare.depart_date.value = checksyntax(document.SearchFare.depart_date.value)
    }        

    if (compareDate(document.SearchFare.depart_date.value, getCurrentDate(),1) == 1)
    {
        alert('Your depart date is earlier than today. Please select another date.')
        return false;
    }
           
    if (document.SearchFare.trip_type[0].checked || document.SearchFare.trip_type[2].checked){        
        if (document.SearchFare.return_date.value.length > 0 ) {
            var date = document.SearchFare.return_date.value;
            if (date.substring(0,2) > 12){
                alert('The Return Date Format is Incorrect.  Please enter the date in this format MM/DD/YYYY')
                return false;
            }
        }
        else {        
            alert('You must select a returning date');
            return false;        
        }
        
        if (document.SearchFare.return_date.value == 'mm/dd/yyyy')
	    {
    	    alert('Please Select Return Date');
            document.SearchFare.return_date.focus();
    	    return false;
    	}
        else if (checksyntax(document.SearchFare.return_date.value) == 1)
        {
            alert('The Return Date Format is Incorrect')
            return false;
        }
        else
        {        
            document.SearchFare.return_date.value = checksyntax(document.SearchFare.return_date.value);        
        }
    
        if (compareDate(document.SearchFare.return_date.value, getCurrentDate(),1) == 1)
        {
            alert('Your return date is earlier than today. Please select another date.')
            return false;
        }
        
        if (compareDate(document.SearchFare.depart_date.value,document.SearchFare.return_date.value,2) == 1)
        {
            alert('Your return date is earlier than departure date. Please select another date.')
            return false;
        }
		if (chkNumofDays(document.SearchFare.return_date.value) > 330)
        {
			alert('Airline tickets can only be purchased 330 days in advance. Please select another date.')
			return false;
        }
      }
    
    if (document.SearchFare.trip_type[1].checked)
    {
    	 if (document.SearchFare.return_date.value == 'mm/dd/yyyy')
	    	{
				document.getElementById( 'return_date' ).value="";
			}
	}
     
    if (document.SearchFare.gateway_departure.value == '')
    {
		var depart_alert = "Please enter the departure city or select a city from the drop down list.  ";
		depart_alert += "If you have entered a city and you see this message please make sure ";
		depart_alert += "you have entered the city only and no province, state or country.";
        alert(depart_alert);
        return false;
    }

    if (document.SearchFare.gateway_return.value == '')
    {
		var return_alert = "Please enter the destination city or select a city from the drop down list.  ";
		return_alert += "If you have entered a city and you see this message please make sure ";
		return_alert += "you have entered the city only and no province, state or country.";
        alert(return_alert);
        return false;
    } 
	if (document.SearchFare.trip_type[2].checked){
		 if (document.SearchFare.dest_departure.value == '')
		{
			var depart_alert = "Please enter the destination departure city or select a city from the drop down list.  ";
			depart_alert += "If you have entered a city and you see this message please make sure ";
			depart_alert += "you have entered the city only and no province, state or country.";
			alert(depart_alert);
			return false;
		}
	
		if (document.SearchFare.dest_return.value == '')
		{
			var return_alert = "Please enter the destination return city  or select a city from the drop down list.  ";
			return_alert += "If you have entered a city and you see this message please make sure ";
			return_alert += "you have entered the city only and no province, state or country.";
			alert(return_alert);
			return false;
		} 
	}
     if (document.SearchFare.infant.value)
    {
        if (document.SearchFare.infant.value > document.SearchFare.adult.value)
        {
            alert('Number of Infants must be less than equal to number of Adults');
            return false;
        }
    }
    if(parseInt(document.getElementById('adult').value)+parseInt(document.getElementById('child').value)+parseInt(document.getElementById('infant').value)>9)

 {
 alert('Total no of passengers should be less than or equal to 9');
 return false;
 } 
    saveCurrentData();
    return true;
}