//$Id: HotelFormValidation.js 1 2010-02-05 08:20:11Z ramesh $
// JavaScript for validating our Hotel
//Search input parameters. If all parameters are valid then
// form will be submitted for further process
    function roomSelection(){
            var room = document.getElementById("roomSelect").value;
            var room2 = document.getElementById("room2details");
            var room3 = document.getElementById("room3details");
            var room4 = document.getElementById("room4details");
            if(room == 2){
                room2.style.display = "block";
                room3.style.display = "none";
                room4.style.display = "none";
            }else if(room == 3){
                room2.style.display = "block";
                room3.style.display = "block";
                room4.style.display = "none";
            }else if(room == 4){
                room2.style.display = "block";
                room3.style.display = "block";
                room4.style.display = "block";
            }else{
                room2.style.display = "none";
                room3.style.display = "none";
                room4.style.display = "none";
            }
        }  
 
    function validateForm(){
        if(checkCityName()){
                if(checkFromToDate()){
                        return true;
                }else{
                        return false;
                }
        }else{
            return false;
        }
    }
    function errorMessageHotelClose(){
        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 = " ";       
       populateNewModifyPanel();
       return false;
    }
    
    function checkCityName(){
        var _origin = document.getElementById("hotelCityInput");
		if(_origin.value == "select" || _origin.value == "" ){
                    var message = "Please enter City name to search for cheapest hotels";
                    errorMessageDisplay(message);
                    _origin.focus = true;
                    return false;
		}else if(_origin.value == "enter city name" ){
                    var message = "Please enter City name to search for cheapest hotels";
                    errorMessageDisplay(message);
                    _origin.focus = true;
                    return false;
                } else{
		    return true;
		}
        
    }
    function checkFromToDate(){
		var sFromDate = document.getElementById("date1");
		var sFromDate_value = sFromDate.value;
		var isDateReturnFrom = isDate(sFromDate_value);
		
		if(isDateReturnFrom == false){
			return false;
		}
		
		var sToDate = document.getElementById("date2");
		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 check in date";
					errorMessageDisplay(message);
					return false;
			}else if(sToDate_value == "" || sToDate_value == null || resultTo>0 ){
					var message = "Please select check out 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 = "Check Out date must be same or later then Check In 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 format should be : dd/mm/yyyy";
                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 valid Check In and Check Out dates";
                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";
    }
}