CountDown to Date

So I have this code that is counting down to a date June 28th 7pm (unspecified in this code 2011 and 7:30pm, 1/2 not so important). After June 28th though I'm guessing it will restart the counting till next years June 28th, is this correct? If so does anyone know how I can correct this, or of a script out there that already does this? I had one a few months ago but lost it. If I'm incorrect about the recounting can someone explain how the JS knows to stop on June 28th 2011? Thanks. For the live example you can see it here http://chrisisdoingwhat.com/.

Code:

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<SCRIPT type="text/javascript">

// ****  Time Zone Count Down Javascript  **** //
/*
Visit http://rainbow.arch.scriptmania.com/scripts/
 for this script and many more
*/

////////// CONFIGURE THE COUNTDOWN SCRIPT HERE //////////////////

var month = '6';    //  '*' for next month, '0' for this month or 1 through 12 for the month
var day = '28';      //  Offset for day of month day or + day 
var hour = 19;        //  0 through 23 for the hours of the day
var tz = -5;        //  Offset for your timezone in hours from UTC
var lab = 'countdown';    //  The id of the page entry where the timezone countdown is to show

function start() {displayTZCountDown(setTZCountDown(month,day,hour,tz),lab);}

    // **    The start function can be changed if required  **
window.onload = start;

////////// DO NOT EDIT PAST THIS LINE //////////////////

function setTZCountDown(month,day,hour,tz)  {
        var toDate = new Date();
        if (month == '*')
                toDate.setMonth(toDate.getMonth() + 1);
        else if (month > 0) {
                if (month <= toDate.getMonth())
                        toDate.setYear(toDate.getYear() + 1);
                toDate.setMonth(month-1);
        }
        if (day.substr(0,1) == '+')  {
                var day1 = parseInt(day.substr(1));
                toDate.setDate(toDate.getDate()+day1);
        } else {
                toDate.setDate(day);
        }
        toDate.setHours(hour);
        toDate.setMinutes(0-(tz*60));
        toDate.setSeconds(0);
        var fromDate = new Date();
        fromDate.setMinutes(fromDate.getMinutes() + fromDate.getTimezoneOffset());
        var diffDate = new Date(0);
        diffDate.setMilliseconds(toDate - fromDate);
        return Math.floor(diffDate.valueOf()/1000);
        }
function displayTZCountDown(countdown,tzcd) {
        if (countdown < 0)
                document.getElementById(tzcd).innerHTML = '<img src="oregon_trail.jpg" alt="opps?" /><br />The adventures begun.';
        else {
                var secs = countdown % 60;
                if (secs < 10)
                        secs = '0'+secs;
                var countdown1 = (countdown - secs) / 60;
                var mins = countdown1 % 60;
                if (mins < 10)
                        mins = '0'+mins;
                countdown1 = (countdown1 - mins) / 60;
                var hours = countdown1 % 24;
                var days = (countdown1 - hours) / 24;
                document.getElementById(tzcd).innerHTML = days + " day" + (days == 1 ? '':'s') + ' ' +hours+ ':' +mins+ ':'+secs+'';
                setTimeout('displayTZCountDown('+(countdown-1)+',\''+tzcd+'\');',999);
        }
}
</SCRIPT>

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I tried doing this way and it broke.

Code:

---

<SCRIPT type="text/javascript">

// ****  Time Zone Count Down Javascript  **** //
/*
Visit http://rainbow.arch.scriptmania.com/scripts/
 for this script and many more
*/

////////// CONFIGURE THE COUNTDOWN SCRIPT HERE //////////////////

var month = '6';    //  '*' for next month, '0' for this month or 1 through 12 for the month
var day = '28';      //  Offset for day of month day or + day 
var hour = 19;        //  0 through 23 for the hours of the day
var tz = -5;        //  Offset for your timezone in hours from UTC
var lab = 'countdown';    //  The id of the page entry where the timezone countdown is to show
var year = '2011';

function start() {
        displayTZCountDown(setTZCountDown(month,day,hour,year,tz),lab);
}

    // **    The start function can be changed if required  **
window.onload = start();

////////// DO NOT EDIT PAST THIS LINE //////////////////

function setTZCountDown(month,day,hour,tz, year)  {
        var toDate = new Date();
        if (month == '*')
                toDate.setMonth(toDate.getMonth() + 1);
        else if (month > 0) {
                if (month <= toDate.getMonth())
                        toDate.setYear(toDate.getYear() + 1);
                toDate.setMonth(month-1);
        }
        if (day.substr(0,1) == '+')  {
                var day1 = parseInt(day.substr(1));
                toDate.setDate(toDate.getDate()+day1);
        } else {
                toDate.setDate(day);
        }
        if (toDate.getFullYear()  == year)
                year = false;
        else
                year = toDate.getFullYear() - year;
        toDate.setHours(hour);
        toDate.setMinutes(0-(tz*60));
        toDate.setSeconds(0);
        var fromDate = new Date();
        fromDate.setMinutes(fromDate.getMinutes() + fromDate.getTimezoneOffset());
        var diffDate = new Date(0);
        diffDate.setMilliseconds(toDate - fromDate);
        return Math.floor(diffDate.valueOf()/1000), year;
        }
function displayTZCountDown(countdown,tzcd) {
        if (countdown < 0  && !year)
                document.getElementById(tzcd).innerHTML = '<img src="oregon_trail.jpg" alt="opps?" /><br />The adventures begun.';
        else {
                var secs = countdown % 60;
                if (secs < 10)
                        secs = '0'+secs;
                var countdown1 = (countdown - secs) / 60;
                var mins = countdown1 % 60;
                if (mins < 10)
                        mins = '0'+mins;
                countdown1 = (countdown1 - mins) / 60;
                var hours = countdown1 % 24;
                var days = (countdown1 - hours) / 24;
                if (year)
                        document.getElementById(tzcd).innerHTML = year + " year" (year == 1 ? ' ':'s') + days + " day" + (days == 1 ? '':'s') + ' ' +hours+ ':' +mins+ ':'+secs+'';
                else
                        document.getElementById(tzcd).innerHTML = days + " day" + (days == 1 ? '':'s') + ' ' +hours+ ':' +mins+ ':'+secs+'';
                setTimeout('displayTZCountDown('+(countdown-1)+',\''+tzcd+'\');',999);
        }
}
</SCRIPT>

---

Code:

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function setTZCountDown(month,day,hour,tz)  {
        var toDate = new Date();
        if (month == '*')
                toDate.setMonth(toDate.getMonth() + 1);
        else if (month > 0) {
                if (month <= toDate.getMonth())
                        toDate.setYear(toDate.getFullYear() + 1);
                toDate.setMonth(month-1);
        }
        if (day.substr(0,1) == '+')  {
                var day1 = parseInt(day.substr(1));
                toDate.setDate(toDate.getDate()+day1);
        } else {
                toDate.setDate(day);
        }
        toDate.setHours(hour);
        toDate.setMinutes(0-(tz*60));
        toDate.setSeconds(0);
        var fromDate = new Date();
   if (toDate<fromDate){
    toDate.setYear(toDate.getYear()+1);
    }
        fromDate.setMinutes(fromDate.getMinutes() + fromDate.getTimezoneOffset());
        var diffDate = new Date(0);
        diffDate.setMilliseconds(toDate - fromDate);
        return Math.floor(diffDate.valueOf()/1000);
        }

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Thanks, but I don't see how this distinguish between the current year and a year in the future? Upon testing the original code further it appears to stop after the date and doesn't go forward to the next year, at that date so I assume I'm missing something with the JS date object.

I recently found this code (unrelated except for the date object) and I was wondering how I could pass a day to it? Also if the hours passed 23 will it fail?

Code:

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var h = 11, m = 22, s = 60;
time_past = "1/1/1970 " + h + ":" + m + ":" + s;
new Date( Date.parse( time_past ) )

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I tried

Code:

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var h = 11, m = 22, s = 60, d =1;
time_past = "1/" + d + "/1970 " + h + ":" + m + ":" + s;
new Date( Date.parse( time_past ) )

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Thanks for any help.