/* Date/Time Format v0.2; MIT-style license
By Steven Levithan <http://stevenlevithan.com> */

Date.prototype.format = function(mask) {
    var d = this; // Needed for the replace() closure

    // If preferred, zeroise() can be moved out of the format() method for performance and reuse purposes
    var zeroize = function(value, length) {
        if (!length) length = 2;
        value = String(value);
        for (var i = 0, zeros = ''; i < (length - value.length); i++) {
            zeros += '0';
        }
        return zeros + value;
    };

    return mask.replace(/"[^"]*"|'[^']*'|\b(?:d{1,4}|M{1,4}|yy(?:yy)?|([hHms])\1?|TT|tt|[lL])\b/g, function($0) {
        switch ($0) {
            case 'd': return d.getDate();
            case 'dd': return zeroize(d.getDate());
            case 'ddd': return d.shortday[d.getDay()];
            case 'dddd': return d.longday[d.getDay()];
            case 'M': return d.getMonth() + 1;
            case 'MM': return zeroize(d.getMonth() + 1);
            case 'MMM': return d.shortmonth[d.getMonth()];
            case 'MMMM': return d.longmonth[d.getMonth()];
            case 'yy': return String(d.getFullYear()).substr(2);
            case 'yyyy': return d.getFullYear();
            case 'h': return d.getHours() % 12 || 12;
            case 'hh': return zeroize(d.getHours() % 12 || 12);
            case 'H': return d.getHours();
            case 'HH': return zeroize(d.getHours());
            case 'm': return d.getMinutes();
            case 'mm': return zeroize(d.getMinutes());
            case 's': return d.getSeconds();
            case 'ss': return zeroize(d.getSeconds());
            case 'l': return zeroize(d.getMilliseconds(), 3);
            case 'L': var m = d.getMilliseconds();
                if (m > 99) m = Math.round(m / 10);
                return zeroize(m);
            case 't': return d.getHours() < 12 ? 'A' : 'P';
            case 'tt': return d.getHours() < 12 ? 'AM' : 'PM';
            // Return quoted strings with the surrounding quotes removed
            default: return $0.substr(1, $0.length - 2);
        }
    });
};