window.onload = onLoad;
<!--

function GetDaysUntil(dateTarget) {

    // The number of milliseconds in one day
    var numMsInDay = 1000 * 60 * 60 * 24

    // Convert both dates to milliseconds
    var msDateTarget = dateTarget.getTime()
    var msDateNow = new Date().getTime();
    
    // Calculate the difference in milliseconds
    var difference_ms = Math.abs(msDateTarget - msDateNow)
    
    // Convert back to days and return
    var diff = Math.round(difference_ms / numMsInDay)

    if (diff < 0) diff = 0;

    return diff;

}

function onLoad() {
    var cre8Date = new Date();
    cre8Date.setFullYear(2009, 3, 15);

    var numDays = GetDaysUntil(cre8Date);
    var numDaysFormat = '<table style="border-color:#CDCDCA;background-color:#CDCDCA"><tr>';
    var numDaysString = fillZeros(numDays);
    for (i = 0; i < numDaysString.toString().length; i++) {

        var digit = numDaysString.toString().substring(i, i + 1);
        numDaysFormat += '<td style="background-color:White">' + digit + '</td>';
    }
    
    numDaysFormat += '</tr></table>';
    document.getElementById("divDaysleft").innerHTML = numDaysFormat;
}

function fillZeros(s) {
    while (s.toString().length < 3)
        s = "0" + s;

    return s;
}