// Checks if browser is Netscape 2.0x since the options array properties don't work with Netscape 2.0x
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;
}

//the function which does some magic to the date fields
// return non-zero if it is the last day of the month
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;
}

//changes departure month when arrival month is changed
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
	var decodedMonth = decodeMonth(viewMonth);

	if (decodedMonth < 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 = decodedMonth;
	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 = viewMonth - 1;
	var nextM = viewMonth + 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 += '<SCRIPT SRC="calendar.js"></SCRIPT>';

    cal += '<TABLE BORDER="1" CELLSPACING="0" CELLPADDING="0" BORDERCOLOR="BBBBBB" width="100%" height="200"><TR><TD>';
	cal += '<TABLE BORDER="0" CELLSPACING="0" CELLPADDING="2" width="100%">' + 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(" + viewMonth + "," + 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 + ');"><<</a>    ';
	cal += '<a href="javascript:" onClick="window.opener.loadCalendar(' + nextM + ');">>></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);
}

var testWindow;
var formType;
var fName;

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 decodeMonth(selectedIndex)
{
	var dateObj = new Date();
	var month = dateObj.getMonth();  // Returns month (0-11)
	var selectedMonth = month + selectedIndex;
	if (selectedMonth > 11)
	    return (selectedMonth - 12);
	else
	    return selectedMonth;
    
}

function submitForm(form) {
    if (form.numberOfRooms.selectedIndex == 8) {
        window.location="http://www.travelnow.com/index.jsp?pageName=groups&cid=68536";
        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);
}
/*

// NOTE: customize variables in this javascript block as appropriate.
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;

//refresh();

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 id="numberOfRooms" 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+'> </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 += ' ';
            }
            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+'> </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 id="room-'+i+'-child-'+j+'-age" 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' : '')+'><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+'> </td>';
                    }
                }
                x += '</tr>\n';
            }
        }
        if (didHeader) {
            x += '</table>\n';
        }
    }

    $("#hot-search-params").html(x);
}

function buildSelect(name, onchange, min, max, selected) 
{
    var x = '<select id="' + name + '" 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);
}
*/