Prototype ¬ Detail

author: Jonas Galvez [+], Submitted: 01.27.03 2a

// Date.countdown Method v1.0
// by Jonas Galvez (jonas@onrelease.org)

Date.prototype.countdown = function(obj, _onStatus, _onFinish) {
    var ms = 24 * 60 * 60 * 1000;
    var timer = setInterval(function(o) {
        var _current = new Date();
        var _days = Math.floor((o.getTime()-_current.getTime())/ms);
        var _hours = Math.abs(_current.getHours()-23);
        var _minutes = Math.abs(_current.getMinutes()-59);
        var _seconds = Math.abs(_current.getSeconds()-60);
        _onStatus.call(obj, _days, _hours, _minutes, _seconds);
        if(_days < 0) { _onFinish.call(obj); clearInterval(timer); };
    }, 1000, this);
};
ASSetPropFlag(Date.prototype, "countdown", 1);

usage

var birthday = new Date(2003, 2, 5); // 03-05-2003

var myOnStatus = function(days, hours, minutes, seconds) {
    _root.messageText = "There are " + days + " days, ";
    _root.messageText += hours + " hours, " + minutes + " minutes";
    _root.messageText += " and " + seconds + " seconds left to my birthday.";
};

var myOnFinish = function() {
    _root.messageText = "Let's party! =)";
};

// the 1st parameter indicates
// the object to which the callbacks will be applied
birthday.countdown(this, myOnStatus, myOnFinish);