function openUrl( url ) {
    window.open( url, "", "width=640,height=480,menubar=no,status=no,toolbar=no,scrollbars=yes" );
}

function today() {
    var theDate = new Date();

    var m = theDate.getMonth();
    var d = theDate.getDate();
    var y = theDate.getYear();

    return twoDigits(m + 1) + "/" + twoDigits(d) + "/" + y;
}

function twoDigits(i) {
    if (i >= 0 && i <= 9) {
        return "0" + i.toString();
    } else {
        return i;
    }
}

function yesterday() {
    var theDate = new Date();
    theDate.setDate(theDate.getDate() - 1);

    var m = theDate.getMonth();
    var d = theDate.getDate();
    var y = theDate.getYear();

    return twoDigits(m + 1) + "/" + twoDigits(d) + "/" + y;
}