//$Id: InterFlightFormValidation.js 1 2010-02-05 08:20:11Z ramesh $

/**
 *
 * @author ArpitaPandit
 */

    function interFormValidation(){
        //alert('Inside interFormValidation');
        var submitButton = document.getElementById("interFlightSubmit");
        submitButton.blur();
        if(checkSourceDest()){
                if(checkPsgerAndDates()){
                        return true;
                }else{
                        return false;
                }
        }else{
            return false;
        }
    }
    function errorMessageFlightClose(){
        var element = document.getElementById("errorMessage");
        var element_over = document.getElementById("over");
        if(element.style.display == "none")
            element.style.display = "block";
        else
            element.style.display = "none";
        
        if(element_over.style.display == "none")
            element_over.style.display = "block";
        else
            element_over.style.display = "none";
        
        var msgtext_div = document.getElementById("msgtext");
        msgtext_div.innerHTML = " ";
     
        var opennewmodify = document.getElementById("opennewmodify");
        if(opennewmodify.style.display == "none")
            opennewmodify.style.display = "block";
        else
            opennewmodify.style.display = "none";
        
        var over = document.getElementById("over");
        if(over.style.display == "none")
            over.style.display = "block";
        else
            over.style.display = "none";
        
        return false;
    }

    function checkSourceDest(){
        var _origin = document.getElementById("interOriginCity");
        var _dest = document.getElementById("interDestCity");
        //alert('origin:'+_origin.value+' dest:'+_dest.value);
        if(_origin.value == _dest.value && _origin.value != "select"){
            var message = "The Origin and Destination airport must be different. Please enter correct information";
            errorMessageDisplay(message);
            _origin.focus = true;
            return false;
        }else if(_origin.value == "select" && _dest.value == "enter city name"){
            var message = "Please select departure & arrival city";
            errorMessageDisplay(message);
            _origin.focus = true;
            return false;
        }else if(_origin.value == "select"){
                var message = "Please select departure city";
                errorMessageDisplay(message);
                _origin.focus = true;
                return false;
        }else if(_dest.value == "enter city name"){
                var message = "Please enter destination";
                errorMessageDisplay(message);
                _dest.focus = true;
                return false;
            }else{
                return true;
            }
    }

    function checkPsgerAndDates(){

       var adult = document.getElementById("interAdultSelect");
       var children = document.getElementById("interChildSelect");
       var infant = document.getElementById("interInfantSelect");

       var adult_value = adult.value;
       var children_value = children.value;
       var infant_value = infant.value;

       if(adult_value == 0 && children_value == 0 && infant_value == 0){
            var message = "Please select value for adult,children and infant";
            errorMessageDisplay(message);
            return false;
       }else if(adult_value == 0 && children_value >= 1 && infant_value >= 1){
            var message = "You can not Select children and infant without adult";
            errorMessageDisplay(message);
            return false;
       }else if(adult_value == 0 && children_value == 0 && infant_value >= 1){
            var message = "You can not select infant without adult";
            errorMessageDisplay(message);
            return false;
       }else if(adult_value == 0 && children_value >= 1 && infant_value == 0){
           return true;
       }else if(infant_value > adult_value){
            var message = "The total number of Infants cannot be greater than number of the Adult.";
            errorMessageDisplay(message);
            return false;
       }else{

       }


       if(document.getElementById("internationalreturnt").style.visibility == "hidden")
       {
                var sFromDate = document.getElementById("interDate1");
                var sFromDate_value = sFromDate.value;
                var f = sFromDate.value.split("/");
                var fromDate=new Date();
                fromDate.setFullYear(f[2],f[1]-1,f[0]);

                var currentDate = new Date();

                var isDateReturn = isDate(sFromDate_value);
                if(isDateReturn == false){
                     return false;
                }else if(fromDate < currentDate){
                     var message = "Travel date must not be in the past. Please select future date";
                     errorMessageDisplay(message);
                     return false;
		}else{
                    var resultFrom = sFromDate_value.search(/mm/);
                    if(sFromDate_value == "" || sFromDate_value == null || resultFrom >0 )
                    {
                            var message = "Please select depart date";
                            errorMessageDisplay(message);
                            return false;
                    }else{
                            return true;
                    }
                }
	}else{
                var sFromDate = document.getElementById("interDate1");
                var sFromDate_value = sFromDate.value;
                var isDateReturnFrom = isDate(sFromDate_value);
                var currentDate = new Date();

                if(isDateReturnFrom == false){
			return false;
                }

                var sToDate = document.getElementById("interDate2");
                var sToDate_value = sToDate.value;
                var isDateReturnTo = isDate(sToDate_value);

                var resultFrom = sFromDate_value.search(/mm/);
                var resultTo = sToDate_value.search(/mm/);


                if(isDateReturnTo == false){
                    return false;
                }else{
                    if(sFromDate_value == "" || sFromDate_value == null || resultFrom >0 ){
                            var message = "Please select depart date";
                            errorMessageDisplay(message);
                            return false;
                    }else if(sToDate_value == "" || sToDate_value == null || resultTo>0 ){
                            var message = "Please select return date";
                            errorMessageDisplay(message);
                            return false;
                     }else{

                            var f = sFromDate.value.split("/");
                            var fromDate=new Date();
                            fromDate.setFullYear(f[2],f[1]-1,f[0]);

                            var t = sToDate.value.split("/");
                            var toDate=new Date();
                            toDate.setFullYear(t[2],t[1]-1,t[0]);

                            if(fromDate > toDate){
                                   var message = "Return date must not be earlier than departure date. Please select a return date must be same or later than departure date";
                                   errorMessageDisplay(message);
                                   return false;
                            }else if(fromDate < currentDate){
                                 var message = "Travel date must not be in the past. Please select future date";
                                 errorMessageDisplay(message);
                                 return false;
                            }else if(fromDate < toDate){
                                   return true;
                            }
                            else{
                                    return true;
                            }
                    }
                }

	}
     }
   //for date enter manually
    var dtCh= "/";
    var minYear=1900;
    var maxYear=2100;
    function isInteger(s){
    var i;
        for (i = 0; i < s.length; i++){
            var c = s.charAt(i);
            if (((c < "0") || (c > "9"))) return false;
        }
        return true;
    }

    function stripCharsInBag(s, bag){
        var i;
        var returnString = "";
        for (i = 0; i < s.length; i++){
            var c = s.charAt(i);
            if (bag.indexOf(c) == -1) returnString += c;
        }
        return returnString;
    }
    function daysInFebruary (year){
             return (((year % 4 == 0) && ( (!(year % 100 == 0)) || (year % 400 == 0))) ? 29 : 28 );
    }
    function DaysArray(n) {
	for (var i = 1; i <= n; i++) {
		this[i] = 31
		if (i==4 || i==6 || i==9 || i==11) {this[i] = 30}
		if (i==2) {this[i] = 29}
        }
    return this
    }

function isDate(dtStr){
        //alert('dtStr :'+dtStr);
	var daysInMonth = DaysArray(12)
	var pos1=dtStr.indexOf(dtCh)
	var pos2=dtStr.indexOf(dtCh,pos1+1)
	var strDay=dtStr.substring(0,pos1)
	var strMonth=dtStr.substring(pos1+1,pos2)
	var strYear=dtStr.substring(pos2+1)
	strYr=strYear
	if (strDay.charAt(0)=="0" && strDay.length>1) strDay=strDay.substring(1)
	if (strMonth.charAt(0)=="0" && strMonth.length>1) strMonth=strMonth.substring(1)
	for (var i = 1; i <= 3; i++) {
		if (strYr.charAt(0)=="0" && strYr.length>1) strYr=strYr.substring(1)
	}
	month=parseInt(strMonth)
	day=parseInt(strDay)
	year=parseInt(strYr)
	if (pos1==-1 || pos2==-1){
                var message = "The date you have entered is not valid, please enter valid date in dd/mm/yyyy format";
                errorMessageDisplay(message);
		return false
	}
	if (strMonth.length<1 || month<1 || month>12){
                 var message = "Please enter a valid month";
                 errorMessageDisplay(message);
		return false
	}
	if (strDay.length<1 || day<1 || day>31 || (month==2 && day>daysInFebruary(year)) || day > daysInMonth[month]){
                var message = "Please enter a valid day";
                errorMessageDisplay(message);
		return false
	}
	if (strYear.length != 4 || year==0 || year<minYear || year>maxYear){
                var message = "Please enter a valid 4 digit year between "+minYear+" and "+maxYear;
                errorMessageDisplay(message);
		return false
	}
	if (dtStr.indexOf(dtCh,pos2+1)!=-1 || isInteger(stripCharsInBag(dtStr, dtCh))==false){
                var message = "Please enter a valid date";
                errorMessageDisplay(message);
		return false
	}
    return true
}
function errorMessageDisplay(message){
    var element = document.getElementById("errorMessage");
    if(element.style.display == "none"){
           element.style.display = "block";
    }else{
           element.style.display = "none";
    }
   var msgtext_div = document.getElementById("msgtext");
   var insertBefor_div = document.getElementById("insertBefor");
   var msg_div = document.getElementById("msg");
   var text_node = document.createTextNode(message);
   msgtext_div.appendChild(text_node);
   msg_div.insertBefore(insertBefor_div,msgtext_div);
   var element_over = document.getElementById("over");
   if(element_over.style.display == "none"){
            element_over.style.display = "block";
    }else{
            element_over.style.display = "none";
    }
}