var testWindow;
var formType;
var fName;

var defaultAdults="2";
var cellStyle=" class='index-11bold-text'";
var childHelp="Please provide the ages of children in each room. Children's ages should be their age at the time of travel.";
var adultHelp="";
var textRooms="Rooms:";
var textAdults="Adults: (age 19+)";
var textChildren="Children: (0-18)";
var textChildError="Please specify the ages of all children.";
var pad='<img src="http://travel.ian.com/images/p.gif" width="5" height="1">';
// NOTE: Question marks ("?") get replaced with a numeric value
var textRoomX="Room ?:";
var textChildX="Child ?:";


var adultsPerRoom=new Array(defaultAdults);
var childrenPerRoom=new Array();
var childAgesPerRoom=new Array();
var numRooms=1;
    var maxChildren=0;

function isBrowserSupp() {
	// Get the version of the browser
	version =  parseFloat( navigator.appVersion );

	if ( ( version >= 2.0 ) && ( version < 2.1 ) && ( navigator.appName.indexOf( "Netscape" ) != -1 ) ) {
		return false;
	} else {
		return true;
	}

	return true;
}

function isLeapYear( yrStr ) {
	var leapYear = false;
	var year = parseInt( yrStr, 10 );
	// every fourth year is a leap year
	if ( year % 4 == 0 ) {
		leapYear = true;
		// unless it's a multiple of 100
		if( year % 100 == 0 ) {
			leapYear = false;
			// unless it's a multiple of 400
			if( year % 400 == 0 ) {
				leapYear=true;
			}
		}
	}
	return leapYear;
}

function getDaysInMonth( mthIdx, YrStr ) {
	// all the rest have 31
	var maxDays = 31
	// expect Feb. (of course)
	if( mthIdx == 1 ) {
		if( isLeapYear( YrStr ) ) {
			maxDays=29;
		} else {
			maxDays=28;
		}
	}

	// thirty days hath...
	if( mthIdx == 3 || mthIdx == 5 || mthIdx == 8 || mthIdx == 10 ) {
		maxDays=30;
	}
	return maxDays;
}

function adjustDate( mthIdx, Dt ) {
	var value = 0;

	var today = new Date()
	var theYear = parseInt( today.getYear(), 10 )

	if( mthIdx < today.getMonth() ) {
		theYear = ( parseInt( today.getYear(), 10 ) + 1 )
	}
	if( theYear < 100 ) {
		theYear = "19" + theYear
	} else {
		if( ( theYear - 100 ) < 10 ) {
			theYear = "0" + ( theYear - 100 )
		} else {
			theYear = ( theYear - 100 ) + ""
		}
		theYear = "20" + theYear
	}


	var numDays = getDaysInMonth( mthIdx, theYear );

	if( mthIdx == 1 ) {
		if( Dt.options.selectedIndex + 1 < numDays ) {
			return 0;
		} else {
			Dt.options.selectedIndex=numDays - 1;
			//check for leap year
			if( numDays == 29 ) {
				return 99;
			} else {
				return 1;
			}
		}
	}

	if( Dt.options.selectedIndex + 1 < numDays ) {
		value = 0;
	} else {
		if ( Dt.options.selectedIndex + 1 > numDays ) {
			Dt.options.selectedIndex--;
			value = 3;
		} else {
			//index is 31 or 30
			value = 2;
		}
	}
	return value;
}

function amadChange( inM, inD, outM, outD ) {
	if ( !isBrowserSupp() ) {
		return;
	}

	var res = adjustDate( inM.options.selectedIndex, inD );
	if( res != 0 ) {
		   outD.options.selectedIndex = 0;
		   if ( outM.options.selectedIndex == 11 ) {
				outM.options.selectedIndex = 0
		   } else {
				outM.options.selectedIndex=inM.options.selectedIndex + 1;
				outD.options.selectedIndex = 1;
		   }
	} else {
		outM.options.selectedIndex = inM.options.selectedIndex;
		if (outD.options.selectedIndex <= inD.options.selectedIndex) {
			outD.options.selectedIndex = inD.options.selectedIndex + 2;
		}
	}
	return;
}

function dmddChange( outM, outD ) {
	if ( !isBrowserSupp() ) {
		return;
	}

	adjustDate( outM.options.selectedIndex, outD );
	return;
}

function loadDates(arrivalMonthSelect,  arrivalDaySelect, departureMonthSelect, departureDaySelect)
{
	var calendar = new Date();
	var calendar2 = new Date();
	var cal
	var cal2
	var date;
	var month;
	var year;
	var date2;
	var month2;
	var year2;

	//Here is the variable to change for to advance the arrival Date
	 var advanceArrival = 14;
	//Here is the variable to change for to advance the departure Date
	 var advanceDeparture = 16;


	//Set the arrival Days
	calendar.setDate(calendar.getDate()+ advanceArrival);
	date = calendar.getDate();
	month = calendar.getMonth();

	//Set the Departure Days
	calendar2.setDate(calendar2.getDate()+advanceDeparture);
	date2 = calendar2.getDate();
	month2 = calendar2.getMonth();

	arrivalMonthSelect.value=month;
	arrivalDaySelect.value=date;
	departureMonthSelect.value=month2;
	departureDaySelect.value=date2;
}

function update(themonth,theday){
    document.forms[fName].elements[formType+'Day'].options[theday - 1].selected = true;
    document.forms[fName].elements[formType+'Month'].options[themonth].selected = true;

    testWindow.close();
}

function loadCalendar(viewMonth) {

	testWindow.document.close();
	testWindow.document.open();


    var day_of_week = new Array("Sun","Mon","Tue","Wed","Thu","Fri","Sat");
	var month_of_year = new Array("January","February","March","April","May","June","July","August","September","October","November","December");

	var dateObj = new Date();
	var year = dateObj.getYear();	 // Returns year
	var month = dateObj.getMonth();  // Returns month (0-11)
	var today = dateObj.getDate();   // Returns day (1-31)
	var weekday = dateObj.getDay();  // Returns day (1-31)

	var DAYS_OF_WEEK = 7;   // "constant" for number of days in a week
	var DAYS_OF_MONTH = 31; // "constant" for number of days in a month
	var cal;                // Used for printing

	if (viewMonth < month) {
		year = year + 1;
	}

	if(year < 1900){
		year += 1900; //done to solve the problem of netscape and mozilla returning year in form 10X for years > 2000
	}

	month = viewMonth;
	dateObj.setDate(1);      // Start the calendar day at '1'
	dateObj.setMonth(month); // Start the calendar month at now
	dateObj.setYear((year));

	// VARIABLES FOR FORMATTING
	var TR_start = '<TR>';
	var TR_end = '</TR>';
	var highlight_start = '<TD WIDTH="30"><TABLE CELLSPACING=0 BORDER=1 BGCOLOR=DEDEFF BORDERCOLOR=CCCCCC><TR><TD WIDTH=20><B><CENTER>';
	var highlight_end   = '</CENTER></TD></TR></TABLE></B>';
	var TD_start = '<TD WIDTH="30"><CENTER>';
	var TD_end = '</CENTER></TD>';
	var prevM = month - 1;
	var nextM = month + 1;

	if (nextM == 12) {
		nextM = 0;
	}

	if (prevM == -1) {
		prevM = 11;
	}

	// BEGIN CODE FOR CALENDAR
	cal =  '<html><head><title>Calendar</title></head><body>';
	cal += "<style>a:link{cursor: hand}a:active{cursor: hand}a:hover{cursor: hand}a:visited{cursor: hand}body{cursor: default}</style>";

    // NOTE:
    // Update the calendar.js reference below to reference where you
    // put the calendar.js file.



    cal += '<TABLE BORDER="0" CELLSPACING="0" CELLPADDING="0" BORDERCOLOR="BBBBBB" width="549" height="200"><TR><TD>';
	cal += '<TABLE BORDER="0" CELLSPACING="0" CELLPADDING="2" width="549">' + TR_start;
	cal += '<TD COLSPAN="' + DAYS_OF_WEEK + '" BGCOLOR="#EFEFEF"><CENTER><B>';
	cal += month_of_year[month]  + '   ' + year + '</B>' + TD_end + TR_end;
	cal += TR_start;

    ///////////////////////////////////
    // DO NOT EDIT BELOW THIS POINT  //
    ///////////////////////////////////

	// LOOPS FOR EACH DAY OF WEEK
	for(index=0; index < DAYS_OF_WEEK; index++) {
        // PRINTS DAY
        cal += TD_start + day_of_week[index] + TD_end;
	}

	cal += TD_end + TR_end;
	cal += TR_start;

	// FILL IN BLANK GAPS UNTIL TODAY'S DAY
	for(index=0; index < dateObj.getDay(); index++) {
	    cal += TD_start + '  ' + TD_end;
    }

	// LOOPS FOR EACH DAY IN CALENDAR
    for(index=0; index < DAYS_OF_MONTH; index++) {
        if( dateObj.getDate() > index ) {
            // RETURNS THE NEXT DAY TO PRINT
            week_day =dateObj.getDay();

            // START NEW ROW FOR FIRST DAY OF WEEK
            if(week_day == 0) {
                cal += TR_start;
            }

            if(week_day != DAYS_OF_WEEK) {
                // SET VARIABLE INSIDE LOOP FOR INCREMENTING PURPOSES
                var day  = dateObj.getDate();

                // PRINTS DAY
                cal += TD_start + "<span onclick='window.opener.update(" + month + "," + day + ")' style='cursor:hand;font-weight:bold;background:#EFEFEF;width:22px;'>" + day + "</span>" + TD_end;
            }

            // END ROW FOR LAST DAY OF WEEK
            if(week_day == DAYS_OF_WEEK) {
                cal += TR_end;
            }
        }

        // INCREMENTS UNTIL END OF THE MONTH
        dateObj.setDate(dateObj.getDate()+1);

    }// end for loop

	cal += '</td></TR></TABLE></TABLE><br>';
    cal += '<div align="center"><a href="javascript:" onClick="window.opener.loadCalendar(' + prevM + ');">&lt;&lt;</a>&nbsp;&nbsp;&nbsp;&nbsp;';
	cal += '<a href="javascript:" onClick="window.opener.loadCalendar(' + nextM + ');">&gt;&gt;</a><br><br></div>';
	cal += '<div align="right"><a href="javascript:window.close();">close</a></div>';
cal += '</body></html>';

	//  PRINT CALENDAR
	testWindow.document.write(cal);
}

function openCalendar(formName,type) {
	formType=type;
	fName=formName;
	testWindow = window.open('','dates','width=360,height=300,resizable=1,status=1,menubar=0,location=0');
	loadCalendar(document.forms[fName].elements[formType+'Month'].selectedIndex);
}

function setCSC(city,state,country) {
    if (city != "") {
        document.hotSearch.cityRadio2.checked=false;
        document.hotSearch.cityText.value='';
        document.hotSearch.city.value=city;
        document.hotSearch.stateProvince.value=state;
        document.hotSearch.country.value=country;
    }
}

function submitForm(form) {
    if (form.numberOfRooms.selectedIndex == 8) {
        window.location="http://www.travelnow.com/index.jsp?pageName=groups&cid=254014";
        return false;
    }
    if (document.hotSearch.cityText.value == "" && document.hotSearch.city.value == "") {
        alert('must enter city');
        return false;
    }
    if (document.hotSearch.cityText.value != "") {
        document.hotSearch.city.value=document.hotSearch.cityText.value;
        document.hotSearch.stateProvince.value='';
        document.hotSearch.country.value='';
    }
        return submitGuestInfoForm(form);
}

function setChildAge(room, child, age) {
	if (childAgesPerRoom[room] == null) {
		childAgesPerRoom[room] = new Array();
	}
	childAgesPerRoom[room][child] = age;
}

function setNumAdults(room, numAdults) {
	adultsPerRoom[room] = numAdults;
}

function setNumChildren(room, numChildren) {
	childrenPerRoom[room] = numChildren;
	refresh();
}

function setNumRooms(x) {
	numRooms = x;
	for (i = 0; i < x; i++) {
		if (adultsPerRoom[i] == null) {
			adultsPerRoom[i] = 2;
		}
		if (childrenPerRoom[i] == null) {
			childrenPerRoom[i] = 0;
		}
	}
	refresh();
}

function renderRoomSelect() {
	var x = '';
	x += '<select name="numberOfRooms" onchange="setNumRooms(this.options[this.selectedIndex].value);">';
	for (var i = 1; i < 9; i++) {
		x += '<option value="'+i+'"'+(numRooms == i ? ' selected' : '')+'>' + i;
	}
	x += '<option value="9"'+(numRooms == 9 ? ' selected' : '')+'>9+';
	x += '</select>';
	return x;
}

function refresh() {
	maxChildren = 0;
	for (var i = 0; i < numRooms; i++) {
		if (childrenPerRoom[i] > maxChildren) {
			maxChildren = childrenPerRoom[i];
		}
	}

	var x = '';
	if (adultHelp.length > 0) {
		x = adultHelp + "<p>\n";
	}

	if (numRooms > 8) {
		x += textRooms;
		x += renderRoomSelect();

	} else {
		x += '<table border="0" cellspacing="2" cellpadding="0">\n';
		x += '<tr><td'+cellStyle+'>'+textRooms+pad+'</td>';
		if (numRooms > 1) {
			x += '<td'+cellStyle+'>&nbsp;</td>';
		}
		x += '<td'+cellStyle+'><nobr>'+textAdults+pad+'</nobr></td><td'+cellStyle+'><nobr>'+textChildren+pad+'</nobr></td></tr>\n';
		for (var i = 0; i < numRooms; i++) {
			x += '<tr><td'+cellStyle+'>';
			if (i == 0) {
				x += renderRoomSelect();
			} else {
				x += '&nbsp;';
			}
			x += '</td>';
			if (numRooms > 1) {
				x += '<td'+cellStyle+'><nobr>'+getValue(textRoomX, i+1)+pad + '</nobr></td>';
			}
			x += '<td'+cellStyle+'>';
			x += buildSelect('room-' + i + '-adult-total', 'setNumAdults(' + i + ', this.options[this.selectedIndex].value)', 1, 4, adultsPerRoom[i]);
			x += '</td><td'+cellStyle+'>';
			x += buildSelect('room-' + i + '-child-total', 'setNumChildren(' + i + ', this.options[this.selectedIndex].value)', 0, 6, childrenPerRoom[i]);
			x += '</td></tr>\n';
		}
		x += '</table>\n';

		var didHeader = false;
		for (var i = 0; i < numRooms; i++) {
			if (childrenPerRoom[i] > 0) {
				if (!didHeader) {
					x += '<table border="0" cellpadding="0" cellspacing="2">\n';
					x += '<tr><td'+cellStyle+' colspan="'+(maxChildren+1)+'">';
					x += '<img src="/images/p.gif" width="1" height="5"><br>';
					x += childHelp;
					x += '<img src="/images/p.gif" width="1" height="5"><br>';
					x += '</td></tr>\n<tr><td'+cellStyle+'>&nbsp;</td>';
					for (var j = 0; j < maxChildren; j++) {
						x += '<td'+cellStyle+'><nobr>'+getValue(textChildX, j+1)+pad+'</nobr></td>\n';
					}
					didHeader = true;
				}
				x += '</tr>\n<tr><td'+cellStyle+'><nobr>'+getValue(textRoomX, i+1)+pad+'</nobr></td>';
				for (var j = 0; j < childrenPerRoom[i]; j++) {
					x += '<td'+cellStyle+'>';
					var def = -1;
					if (childAgesPerRoom[i] != null) {
						if (childAgesPerRoom[i][j] != null) {
							def = childAgesPerRoom[i][j];
						}
					}
					x += '<select name="room-'+i+'-child-'+j+'-age" onchange="setChildAge('+i+', '+j+', this.options[this.selectedIndex].value);">';
					x += '<option value="-1"'+(def == -1 ? ' selected' : '')+'>-?-';
					x += '<option value="0"'+(def == 0 ? ' selected' : '')+'>&lt;1';
					for (var k = 1; k <= 18; k++) {
						x += '<option value="'+k+'"'+(def == k ? ' selected' : '')+'>'+k;
					}
					x += '</td>';
				}
				if (childrenPerRoom[i] < maxChildren) {
					for (var j = childrenPerRoom[i]; j < maxChildren; j++) {
						x += '<td'+cellStyle+'>&nbsp;</td>';
					}
				}
				x += '</tr>\n';
			}
		}
		if (didHeader) {
			x += '</table>\n';
		}
	}

	document.getElementById("hot-search-params").innerHTML = x;
}

function buildSelect(name, onchange, min, max, selected) {
	var x = '<select name="' + name + '"';
	if (onchange != null) {
		x += ' onchange="' + onchange + '"';
	}
	x +='>\n';
	for (var i = min; i <= max; i++) {
		x += '<option value="' + i + '"';
		if (i == selected) {
			x += ' selected';
		}

		x += '>' + i + '\n';
	}
	x += '</select>';
	return x;
}

function validateGuests(form) {
	if (numRooms < 9) {
		var missingAge = false;
		for (var i = 0; i < numRooms; i++) {
			var numChildren = childrenPerRoom[i];
			if (numChildren != null && numChildren > 0) {
				for (var j = 0; j < numChildren; j++) {
					if (childAgesPerRoom[i] == null || childAgesPerRoom[i][j] == null || childAgesPerRoom[i][j] == -1) {
						missingAge = true;
					}
				}
			}
		}

		if (missingAge) {
			alert(textChildError);
			return false;
		} else {
			return true;
		}
	} else {
		return true;
	}
}

function submitGuestInfoForm(form) {
	if (!validateGuests(form)) {
		return false;
	}
	return true;
}

function getValue(str, val) {
	return str.replace(/\?/g, val);
}

$(document).ready(function () {
	loadDates(document.forms['hotSearch'].arrivalMonth,  document.forms['hotSearch'].arrivalDay, document.forms['hotSearch'].departureMonth, document.forms['hotSearch'].departureDay)
    refresh();      
});