Date.prototype.format = function (format) {
    var returnStr = '';
    var replace = Date.replaceChars;
    for (var i = 0; i < format.length; i++) {
        var curChar = format.charAt(i);
        if (replace[curChar]) {
            returnStr += replace[curChar].call(this);
        }
        else {
            returnStr += curChar;
        }
    }
    return returnStr;
};

Date.replaceChars =
{   shortMonths: ['Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul', 'Aug', 'Sep', 'Oct', 'Nov', 'Dec'],
    longMonths: ['January', 'February', 'March', 'April', 'May', 'June', 'July', 'August', 'September', 'October', 'November', 'December'],
    shortDays: ['Sun', 'Mon', 'Tue', 'Wed', 'Thu', 'Fri', 'Sat'],
    longDays: ['Sunday', 'Monday', 'Tuesday', 'Wednesday', 'Thursday', 'Friday', 'Saturday'],
    d: function () { return (this.getDate() < 10 ? '0' : '') + this.getDate(); },
    D: function () { return Date.replaceChars.shortDays[this.getDay()]; },
    j: function () { return this.getDate(); },
    l: function () { return Date.replaceChars.longDays[this.getDay()]; },
    N: function () { return this.getDay() + 1; },
    S: function () {return (this.getDate() % 10 == 1 && this.getDate() != 11 ? 'st' : (this.getDate() % 10 == 2 && this.getDate() != 12 ? 'nd' : (this.getDate() % 10 == 3 && this.getDate() != 13 ? 'rd' : 'th')));},
    w: function () { return this.getDay(); },
    z: function () { return "Not Yet Supported"; },
    W: function () { return "Not Yet Supported"; },
    F: function () { return Date.replaceChars.longMonths[this.getMonth()]; },
    m: function () { return (this.getMonth() < 9 ? '0' : '') + (this.getMonth() + 1); },
    M: function () { return Date.replaceChars.shortMonths[this.getMonth()]; },
    n: function () { return this.getMonth() + 1; },
    t: function () { return "Not Yet Supported"; },
    L: function () { return (((this.getFullYear() % 4 == 0) && (this.getFullYear() % 100 != 0)) || (this.getFullYear() % 400 == 0)) ? '1' : '0'; },
    o: function () { return "Not Supported"; },
    Y: function () { return this.getFullYear(); },
    y: function () { return ('' + this.getFullYear()).substr(2); },
    a: function () { return this.getHours() < 12 ? 'am' : 'pm'; },
    A: function () { return this.getHours() < 12 ? 'AM' : 'PM'; },
    B: function () { return "Not Yet Supported"; },
    g: function () { return this.getHours() % 12 || 12; },
    G: function () { return this.getHours(); },
    h: function () { return ((this.getHours() % 12 || 12) < 10 ? '0' : '') + (this.getHours() % 12 || 12); },
    H: function () { return (this.getHours() < 10 ? '0' : '') + this.getHours(); },
    i: function () { return (this.getMinutes() < 10 ? '0' : '') + this.getMinutes(); },
    s: function () { return (this.getSeconds() < 10 ? '0' : '') + this.getSeconds(); },
    e: function () { return "Not Yet Supported"; },
    I: function () { return "Not Supported"; },
    O: function () { return (-this.getTimezoneOffset() < 0 ? '-' : '+') + (Math.abs(this.getTimezoneOffset() / 60) < 10 ? '0' : '') + (Math.abs(this.getTimezoneOffset() / 60)) + '00'; },
    P: function () { return (-this.getTimezoneOffset() < 0 ? '-' : '+') + (Math.abs(this.getTimezoneOffset() / 60) < 10 ? '0' : '') + (Math.abs(this.getTimezoneOffset() / 60)) + ':' + (Math.abs(this.getTimezoneOffset() % 60) < 10 ? '0' : '') + (Math.abs(this.getTimezoneOffset() % 60)); },
    T: function () { var m = this.getMonth(); this.setMonth(0); var result = this.toTimeString().replace(/^.+ \(?([^\)]+)\)?$/, '$1'); this.setMonth(m); return result; },
    Z: function () { return -this.getTimezoneOffset() * 60; },
    c: function () { return this.format("Y-m-d") + "T" + this.format("H:i:sP"); },
    r: function () { return this.toString(); },
    U: function () { return this.getTime() / 1000; } 
};

Date.prototype.toShortDateString = function () {
    var returnStr = '';
    var day = this.getDate().toString();
    day = day.length > 1 ? day : '0' + day;
    var month = (this.getMonth()+1).toString();
    month = month.length > 1 ? month : '0' + month;
    returnStr += day + "." + month + "." + this.getFullYear();
    return returnStr;
};

Date.prototype.toShortTimeString = function () {
    var returnStr = '';
    var hours = this.getHours().toString();
    hours = hours.length > 1 ? hours : '0' + hours;
    var minutes = this.getMinutes().toString();
    minutes = minutes.length > 1 ? minutes : '0' + minutes;
    returnStr += hours + ":" + minutes;
    return returnStr;
};

Date.prototype.toShortDateTimeString = function () {
    return this.toShortDateString() + ' ' + this.toShortTimeString();
};

Date.prototype.toLongDateTimeString = function () {
    var day = this.getDate().toString();
    day = day.length > 1 ? day : '0' + day;
    var monthStr = Date.MouthsRUS[this.getMonth()];
    return day + ' ' + monthStr + ' ' + this.toShortTimeString();
};

Date.MouthsRUS =
{
    0: "янв",
    1: "фев",
    2: "мар",
    3: "апр",
    4: "май",
    5: "июн",
    6: "июл",
    7: "авг",
    8: "сен",
    9: "окт",
    10: "ноя",
    11: "дек"
}

Date.parseRus = function (dateStr) {
    var datetimeArr = dateStr.split(" ");
    var dateArr = datetimeArr[0].split(".");
    var mns = dateArr[1];

    if (dateArr[1].length == 2 && dateArr[1].substring(0, 1) == "0") {
        mns = dateArr[1].substring(1, 2);
    }
    if (datetimeArr[1]) {
        var timeArr = datetimeArr[1].split(":");
        return new Date(dateArr[2], parseInt(mns) - 1, dateArr[0], timeArr[0], timeArr[1]);
    } else {

        return new Date(dateArr[2], parseInt(mns) - 1, dateArr[0]);
    }
}