//$Id: BusFormValidation.js 1 2010-02-05 08:20:11Z ramesh $
function validateBusForm(){
    //alert('validateBusForm');
    var submitButton = document.getElementById("busSubmit");
    //submitButton.blur();
    if(checkSourceDestinationBus()){
            if(checkFromToDateBus()){
                    return true;
            }else{
                    return false;
            }
    }else{
        return false;
    }
}
function errorMessageBusClose(){
        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 = " "; 
       //code added by ramesh for new modify panel validation 28/03/2009 start
        var opennewmodify = document.getElementById("opennewmodify");
        if(opennewmodify.style.display == "none"){
		var a_id = document.getElementById("current_aId");
                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";
        }
	//code added by ramesh for new modify panel validation 28/03/2009 end
        return false;
}
    
function checkSourceDestinationBus(){
    var _origin = document.getElementById("busCityOriginNameInput");
    var _dest = document.getElementById("busCityDestNameInput");
    if(_origin.value == _dest.value && _origin.value != "enter city name"){
            var message = "Please enter To and From city";
            errorMessageDisplay(message);
            _origin.focus = true;
            return false;
    }else if(_origin.value == "" && _dest.value == ""){
            var message = "Please enter To and From city.";
            errorMessageDisplay(message);
            _origin.focus = true;
            return false;
    }else if(_origin.value == _dest.value && _origin.value != "select"){
            var message = "The Origin and Destination cities must be different. Please enter correct information";
            errorMessageDisplay(message);
            _origin.focus = true;
            return false;
    }else if(_origin.value == "select" && _dest.value == "select"){
            var message = "Please enter To and From city";
            errorMessageDisplay(message);
            _origin.focus = true;
            return false;
    }else if(_origin.value == "select" || _origin.value == ""){
            var message = "Please enter From city";
            errorMessageDisplay(message);
            _origin.focus = true;
            return false;
    }else if(_dest.value == "select" || _dest.value == ""){
            var message = "Please enter To city";
            errorMessageDisplay(message);
            _dest.focus = true;
            return false;
    }else if(_dest.value == "NRA"){
            var message = "No route available on this sector";
            errorMessageDisplay(message);
            _dest.focus = true;
            return false;
    }else if(_dest.value == "FSO"){
            var message = "First select departure city";
            errorMessageDisplay(message);
            _dest.focus = true;
            return false;
    }else if(_origin.value == "enter city name"){
            var message = "Please enter From city";
            errorMessageDisplay(message);
            _origin.focus = true;
            return false;
    }else if(_dest.value == "enter city name"){
            var message = "Please enter To city";
            errorMessageDisplay(message);
            _dest.focus = true;
            return false;
    }else{
        return true;
    }

}
function checkFromToDateBus(){
    var noOfSeats = document.getElementById("numberOfSeats");       
    var noOfSeats_value = noOfSeats.value;
    var seatType = document.getElementById("seatType");       
    var seatType_value = seatType.value;
    if(noOfSeats_value == 0 ){
        var message = "Please select passsangers";
        errorMessageDisplay(message);
        return false;
    }
    if(seatType_value == "" || seatType_value == null){
        var message = "Please select seat type";
        errorMessageDisplay(message);
        return false;
    }
    //if(document.getElementById("busReturnDate").style.display == "none")
    if(document.getElementById("busReturnDate").style.visibility == "hidden")
    {				
        var sFromDate = document.getElementById("dateBus1");
        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("dateBus1");
            var sFromDate_value = sFromDate.value;
            var currentDate = new Date();

            var isDateReturnFrom = isDate(sFromDate_value);               
            if(isDateReturnFrom == false){
                    return false;
            }

            var sToDate = document.getElementById("dateBus2");
            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){
	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";
    }
}