// *** IN QUESTA CLASSE SI ESTENDERANNO LE LIBRERIE JAVASCRIPT PER 
// AGGIUNGERE FUNZIONALITA' NON DISPONIBILI DI DEFAULT. ***


// class: Array
// method: indexOf
// parameters: Object
// return: int
// aim: ritorna l'indice dell'elemento passato in argomento.
Array.prototype.indexOf = function (obj) {
    for (var i = 0; i < this.length; i++) {
        if (this[i] == obj) {
            return i;
        }
    }
    return -1;
}


// class: Array
// method: exist
// parameters: Object
// return: boolean
// aim: informa sull'esistenza di un oggetto nell'array.
Array.prototype.exists = function (obj) {
    for (var i = 0; i < this.length; i++) {
        if (this[i] === obj) {
            return true;
        }
    }
    return false;
}


// class: Number
// method: roundTo
// parameters: int
// return: int
// aim: arrotonda un decimale alla posizione passata in argomento.
Number.prototype.roundTo = function (decimalpositions) {
    var i = this * Math.pow(10, decimalpositions);
    i = Math.round(i);
    return i / Math.pow(10, decimalpositions);
}


// class: Number
// method: currencyFormat
// parameters: int
// return: string
// aim: formatta valute senza i decimali
Number.prototype.currencyFormat = function () {
    var i = parseFloat(this);
    if (isNaN(i)) { i = 0.00; }
    var minus = '';
    if (i < 0) { minus = '-'; }
    i = Math.abs(i);
    i = parseInt((i + .005) * 100);
    i = i / 100;
    s = new String(i);
    if (s.indexOf('.') < 0) { s += '.00'; }
    if (s.indexOf('.') == (s.length - 2)) { s += '0'; }
    s = minus + s.replace(".", ",");
    var interi = s.substring(0, s.indexOf(",")).split("").reverse();
    var decimali = s.substring(s.indexOf(","), s.length);
    var newInteri = [];
    for (x = 0; x < interi.length; x++) {
        if (x > 0 && x % 3 == 0) {
            newInteri.push(".");
        }
        newInteri.push(interi[x]);
    }

    newInteri.reverse();
    s = newInteri.join(""); // +decimali;
    return s;
}


// class: String
// method: pad
// parameters: int, string, int
// return: string
// aim: esegue il padding di una stringa.
String.prototype.pad = function (l, s, t) {
    return s || (s = " "), (l -= this.length) > 0 ? (s = new Array(Math.ceil(l / s.length)
           + 1).join(s)).substr(0, t = !t ? l : t == 1 ? 0 : Math.ceil(l / 2))
           + this + s.substr(0, l - t) : this;
};


// class: String
// method: cpitalize
// return: string
// aim: capitalizza la stringa.
String.prototype.capitalize = function () {
    return this.toLowerCase().charAt(0).toUpperCase() + this.slice(1).toLowerCase();
}


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 (i - 1 >= 0 && format.charAt(i - 1) == "\\") {
            returnStr += curChar;
        }
        else if (replace[curChar]) {
            returnStr += replace[curChar].call(this);
        } else if (curChar != "\\") {
            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'],

    // Day
    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 () { var d = new Date(this.getFullYear(), 0, 1); return Math.ceil((this - d) / 86400000); }, // Fixed now
    // Week
    W: function () { var d = new Date(this.getFullYear(), 0, 1); return Math.ceil((((this - d) / 86400000) + d.getDay() + 1) / 7); }, // Fixed now
    // Month
    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 () { var d = new Date(); return new Date(d.getFullYear(), d.getMonth(), 0).getDate() }, // Fixed now, gets #days of date
    // Year
    L: function () { var year = this.getFullYear(); return (year % 400 == 0 || (year % 100 != 0 && year % 4 == 0)); }, // Fixed now
    o: function () { var d = new Date(this.valueOf()); d.setDate(d.getDate() - ((this.getDay() + 6) % 7) + 3); return d.getFullYear(); }, //Fixed now
    Y: function () { return this.getFullYear(); },
    y: function () { return ('' + this.getFullYear()).substr(2); },
    // Time
    a: function () { return this.getHours() < 12 ? 'am' : 'pm'; },
    A: function () { return this.getHours() < 12 ? 'AM' : 'PM'; },
    B: function () { return Math.floor((((this.getUTCHours() + 1) % 24) + this.getUTCMinutes() / 60 + this.getUTCSeconds() / 3600) * 1000 / 24); }, // Fixed now
    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(); },
    u: function () {
        var m = this.getMilliseconds(); return (m < 10 ? '00' : (m < 100 ? '0' : '')) + m;
    },
    // Timezone
    e: function () { return "Not Yet Supported"; },
    I: function () { return "Not Yet 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)) + ':00'; }, // Fixed now
    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; },
    // Full Date/Time
    c: function () { return this.format("Y-m-d\\TH:i:sP"); }, // Fixed now
    r: function () { return this.toString(); },
    U: function () { return this.getTime() / 1000; }
};