// const
var const_dayticks = 24*60*60*1000; 

function datestamp()
{
 var d=new Date();
 return d.getTime();
}


function now()
{
 return new Date();
}


function date(format, timestamp)
{
    var that = this,
        jsdate, f, formatChr = /\\?([a-z])/gi, formatChrCb,
        _pad = function (n, c) {
            if ((n = n + "").length < c) {
                return new Array((++c) - n.length).join("0") + n;            } else {
                return n;
            }
        },
        txt_words = ["Sun", "Mon", "Tues", "Wednes", "Thurs", "Fri", "Satur",        "January", "February", "March", "April", "May", "June", "July",
        "August", "September", "October", "November", "December"],
        txt_ordin = {
            1: "st",
            2: "nd",            3: "rd",
            21: "st", 
            22: "nd",
            23: "rd",
            31: "st"        };
    formatChrCb = function (t, s) {
        return f[t] ? f[t]() : s;
    };
    f = {    // Day
        d: function () { // Day of month w/leading 0; 01..31
            return _pad(f.j(), 2);
        },
        D: function () { // Shorthand day name; Mon...Sun 
		return f.l().slice(0, 3);
        },
        j: function () { // Day of month; 1..31
            return jsdate.getDate();
        },        l: function () { // Full day name; Monday...Sunday
            return txt_words[f.w()] + 'day';
        },
        N: function () { // ISO-8601 day of week; 1[Mon]..7[Sun]
            return f.w() || 7;        },
        S: function () { // Ordinal suffix for day of month; st, nd, rd, th
            return txt_ordin[f.j()] || 'th';
        },
        w: function () { // Day of week; 0[Sun]..6[Sat]  
		return jsdate.getDay();
        },
        z: function () { // Day of year; 0..365
            var a = new Date(f.Y(), f.n() - 1, f.j()),
                b = new Date(f.Y(), 0, 1);   
			return Math.round((a - b) / 864e5) + 1;
        },
 
    // Week
        W: function () { // ISO-8601 week number   
		var a = new Date(f.Y(), f.n() - 1, f.j() - f.N() + 3),
                b = new Date(a.getFullYear(), 0, 4);
            return 1 + Math.round((a - b) / 864e5 / 7);
        },
     // Month
        F: function () { // Full month name; January...December
            return txt_words[6 + f.n()];
        },
        m: function () { // Month w/leading 0; 01...12      
		return _pad(f.n(), 2);
        },
        M: function () { // Shorthand month name; Jan...Dec
            return f.F().slice(0, 3);
        },        n: function () { // Month; 1...12
            return jsdate.getMonth() + 1;
        },
        t: function () { // Days in month; 28...31
            return (new Date(f.Y(), f.n(), 0)).getDate();        },
 
    // Year
        L: function () { // Is leap year?; 0 or 1
            var y = f.Y(), a = y & 3, b = y % 4e2, c = y % 1e2;  
			return 0 + (!a && (c || !b));
        },
        o: function () { // ISO-8601 year
            var n = f.n(), W = f.W(), Y = f.Y();
            return Y + (n === 12 && W < 9 ? -1 : n === 1 && W > 9);        },
        Y: function () { // Full year; e.g. 1980...2010
            return jsdate.getFullYear();
        },
        y: function () { // Last two digits of year; 00...99 
		return (f.Y() + "").slice(-2);
        },
 
    // Time
        a: function () { // am or pm  
		return jsdate.getHours() > 11 ? "pm" : "am";
        },
        A: function () { // AM or PM
            return f.a().toUpperCase();
        },        B: function () { // Swatch Internet time; 000..999
            var H = jsdate.getUTCHours() * 36e2, // Hours
                i = jsdate.getUTCMinutes() * 60, // Minutes
                s = jsdate.getUTCSeconds(); // Seconds
            return _pad(Math.floor((H + i + s + 36e2) / 86.4) % 1e3, 3);        },
        g: function () { // 12-Hours; 1..12
            return f.G() % 12 || 12;
        },
        G: function () { // 24-Hours; 0..23   
		return jsdate.getHours();
        },
        h: function () { // 12-Hours w/leading 0; 01..12
            return _pad(f.g(), 2);
        },        H: function () { // 24-Hours w/leading 0; 00..23
            return _pad(f.G(), 2);
        },
        i: function () { // Minutes w/leading 0; 00..59
            return _pad(jsdate.getMinutes(), 2);        },
        s: function () { // Seconds w/leading 0; 00..59
            return _pad(jsdate.getSeconds(), 2);
        },
        u: function () { // Microseconds; 000000-999000   
		return _pad(jsdate.getMilliseconds() * 1000, 6);
        },
 
    // Timezone
        e: function () { 
// Timezone identifier; e.g. Atlantic/Azores, ...// The following works, but requires inclusion of the very large
// timezone_abbreviations_list() function.
/*              var abbr = '', i = 0, os = 0;
            if (that.php_js && that.php_js.default_timezone) {
                return that.php_js.default_timezone;            }
            if (!tal.length) {
                tal = that.timezone_abbreviations_list();
            }
            for (abbr in tal) {                for (i = 0; i < tal[abbr].length; i++) {
                    os = -jsdate.getTimezoneOffset() * 60;
                    if (tal[abbr][i].offset === os) {
                        return tal[abbr][i].timezone_id;
                    }                }
            }
*/
            return 'UTC';
        },        I: function () { // DST observed?; 0 or 1
            // Compares Jan 1 minus Jan 1 UTC to Jul 1 minus Jul 1 UTC.
            // If they are not equal, then DST is observed.
            var a = new Date(f.Y(), 0), // Jan 1
                c = Date.UTC(f.Y(), 0), // Jan 1 UTC      
				b = new Date(f.Y(), 6), // Jul 1
                d = Date.UTC(f.Y(), 6); // Jul 1 UTC
            return 0 + ((a - c) !== (b - d));
        },
        O: function () { // Difference to GMT in hour format; e.g. +0200 
		var a = jsdate.getTimezoneOffset();
            return (a > 0 ? "-" : "+") + _pad(Math.abs(a / 60 * 100), 4);
        },
        P: function () { // Difference to GMT w/colon; e.g. +02:00
            var O = f.O();            return (O.substr(0, 3) + ":" + O.substr(3, 2));
        },
        T: function () { // Timezone abbreviation; e.g. EST, MDT, ...
// The following works, but requires inclusion of the very
// large timezone_abbreviations_list() function.
/*              var abbr = '', i = 0, os = 0, default = 0;
            if (!tal.length) {
                tal = that.timezone_abbreviations_list();
            }
            if (that.php_js && that.php_js.default_timezone) {    
			default = that.php_js.default_timezone;
                for (abbr in tal) {
                    for (i=0; i < tal[abbr].length; i++) {
                        if (tal[abbr][i].timezone_id === default) {
                            return abbr.toUpperCase();                        }
                    }
                }
            }
            for (abbr in tal) {            
			for (i = 0; i < tal[abbr].length; i++) {
                    os = -jsdate.getTimezoneOffset() * 60;
                    if (tal[abbr][i].offset === os) {
                        return abbr.toUpperCase();
                    }                }
            }
*/
            return 'UTC';
        },        Z: function () { // Timezone offset in seconds (-43200...50400)
            return -jsdate.getTimezoneOffset() * 60;
        },
 
    // Full Date/Time      
	    c: function () { // ISO-8601 date.
            return 'Y-m-d\\Th:i:sP'.replace(formatChr, formatChrCb);
        },
        r: function () { // RFC 2822
            return 'D, d M Y H:i:s O'.replace(formatChr, formatChrCb);        },
        U: function () { // Seconds since UNIX epoch
            return jsdate.getTime() / 1000 | 0;
        }
    };    this.date = function (format, timestamp) {
        that = this;
        jsdate = (
            (typeof timestamp === 'undefined') ? new Date() : // Not provided
            (timestamp instanceof Date) ? new Date(timestamp) : // JS Date()            
			new Date(timestamp * 1000) // UNIX timestamp (auto-convert to int)
        );
        return format.replace(formatChr, formatChrCb);
    };
    return this.date(format, timestamp);
}