function runclock()
{
    var autoupdate    = 1;    // 0 = STATIC CLOCK, 1 = DYNAMIC CLOCK
    var timesystem    = 0;    // 0 = USER'S TIME, 1 = UNIVERSAL TIME (GMT/UTC)
    var twelvehour    = 1;    // 0 = 24 HOUR CLOCK, 1 = 12 HOUR CLOCK
    var padhours    = 0;    // 0 = DO NOT ZERO-PAD HOURS (EG. 6), 1 = ZERO PAD HOURS (EG. 06)
    var offset        = 0;    // NUMBER OF HOURS TO OFFSET THE TIME

    // DISPLAY TEXT FOR WEEKDAYS AND MONTHS:
    var days        = new Array("Sunday", "Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday");
    var months        = new Array("January", "February", "March", "April", "May", "June", "July", "August", "September", "October", "November", "December");

    // TEMPLATE FOR THE DATE AND TIME DISPLAY:
    // {day} {month} {date}{suffix} {year} {hours} {minutes} {seconds} {ampm}
    var template    = "{day}      {month} {date}{suffix}, {year}      {hours}:{minutes}:{seconds} {ampm}";



    // NO CONFIGURATION OPTIONS BELOW THIS POINT
    
    var currentTime = new Date((new Date()).valueOf() + (offset*60*60*1000))
    if (timesystem)
    {
        var hours    = currentTime.getUTCHours();
        var minutes    = currentTime.getUTCMinutes();
        var seconds    = currentTime.getUTCSeconds();
        var day        = days[currentTime.getUTCDay()];
        var date    = currentTime.getUTCDate();
        var month    = months[currentTime.getUTCMonth()];
        var year    = currentTime.getUTCFullYear();
    } else {
        var hours    = currentTime.getHours();
        var minutes    = currentTime.getMinutes();
        var seconds    = currentTime.getSeconds();
        var day        = days[currentTime.getDay()];
        var date    = currentTime.getDate();
        var month    = months[currentTime.getMonth()];
        var year    = currentTime.getFullYear();
    }
    template = template.replace(/\{ampm\}/g, (hours > 11) ? "PM" : "AM");
    if (hours > 12 && twelvehour) { hours = hours - 12; }
    template = template.replace(/\{hours\}/g, padhours ? padder(hours) : hours);
    template = template.replace(/\{minutes\}/g, padder(minutes));
    template = template.replace(/\{seconds\}/g, padder(seconds));
    template = template.replace(/\{day\}/g, day);
    template = template.replace(/\{date\}/g, date);
    template = template.replace(/\{suffix\}/g, dateSuffix(date));
    template = template.replace(/\{month\}/g, month);
    template = template.replace(/\{year\}/g, year);
    document.getElementById('itronclock').innerHTML = template;
    if (autoupdate) { setTimeout("runclock()",1000); }
}

function padder(num)
{
    return (num < 10) ? "0" + num : num;
}

function dateSuffix(n) 
{ 
    return ["th","st","nd","rd"][(!( ((n%10) >3) || (Math.floor(n%100/10)==1)) ) * (n%10)];  
}