function addLoadEvent(func) {
    var oldonload = window.onload;
    if (typeof window.onload != 'function') {
        window.onload = func;
    } else {
        window.onload = function() {
        if (oldonload) {
            oldonload();
        }
        func();
        }
    }
}

function setCookie(c_name, value, expiredays) {
    var exdate = new Date();
    exdate.setDate(exdate.getDate() + expiredays);
    document.cookie = c_name + "=" + escape(value) +
((expiredays == null) ? "" : ";expires=" + exdate.toGMTString());
}

function getCookie(c_name) {
    if (document.cookie.length > 0) {
        c_start = document.cookie.indexOf(c_name + "=");
        if (c_start != -1) {
            c_start = c_start + c_name.length + 1;
            c_end = document.cookie.indexOf(";", c_start);
            if (c_end == -1) c_end = document.cookie.length;
            return unescape(document.cookie.substring(c_start, c_end));
        }
    }
    return "";
}

function issetCookie(c_name) {
    value = getCookie(c_name);
    if (value != null && value != "") {
        return 1;
    }
    else {
        return 0;
    }
}

function deleteCookie(cookie_name) {
    var cookie_date = new Date();  // current date & time
    cookie_date.setTime(cookie_date.getTime() - 1);
    document.cookie = cookie_name += "=; expires=" + cookie_date.toGMTString();
}

// ----------------------------------------------------------
// A short snippet for detecting versions of IE in JavaScript
// without resorting to user-agent sniffing
// ----------------------------------------------------------
// If you're not in IE (or IE version is less than 5) then:
// ie === undefined
// If you're in IE (>=5) then you can determine which version:
// ie === 7; // IE7
// Thus, to detect IE:
// if (ie) {}
// And to detect the version:
// ie === 6 // IE6
// ie > 7 // IE8, IE9 ...
// ie < 9 // Anything less than IE9
// ----------------------------------------------------------

// UPDATE: Now using Live NodeList idea from @jdalton

var ie = (function () {

    var undef,
        v = 3,
        div = document.createElement('div'),
        all = div.getElementsByTagName('i');

    while (
        div.innerHTML = '<!--[if gt IE ' + (++v) + ']><i></i><![endif]-->',
        all[0]
    );

    return v > 4 ? v : undef;

} ());
/***************************************************************/
/* http://blog.stevenlevithan.com/archives/date-time-format
    see dateFormat.txt for details

*/
/*
* Date Format 1.2.3
* (c) 2007-2009 Steven Levithan <stevenlevithan.com>
* MIT license
*
* Includes enhancements by Scott Trenda <scott.trenda.net>
* and Kris Kowal <cixar.com/~kris.kowal/>
*
* Accepts a date, a mask, or a date and a mask.
* Returns a formatted version of the given date.
* The date defaults to the current date/time.
* The mask defaults to dateFormat.masks.default.
*/

var dateFormat = function () {
    var token = /d{1,4}|m{1,4}|yy(?:yy)?|([HhMsTt])\1?|[LloSZ]|"[^"]*"|'[^']*'/g,
		timezone = /\b(?:[PMCEA][SDP]T|(?:Pacific|Mountain|Central|Eastern|Atlantic) (?:Standard|Daylight|Prevailing) Time|(?:GMT|UTC)(?:[-+]\d{4})?)\b/g,
		timezoneClip = /[^-+\dA-Z]/g,
		pad = function (val, len) {
		    val = String(val);
		    len = len || 2;
		    while (val.length < len) val = "0" + val;
		    return val;
		};

    // Regexes and supporting functions are cached through closure
    return function (date, mask, utc) {
        var dF = dateFormat;

        // You can't provide utc if you skip other args (use the "UTC:" mask prefix)
        if (arguments.length == 1 && Object.prototype.toString.call(date) == "[object String]" && !/\d/.test(date)) {
            mask = date;
            date = undefined;
        }

        // Passing date through Date applies Date.parse, if necessary
        date = date ? new Date(date) : new Date;
        if (isNaN(date)) throw SyntaxError("invalid date");

        mask = String(dF.masks[mask] || mask || dF.masks["default"]);

        // Allow setting the utc argument via the mask
        if (mask.slice(0, 4) == "UTC:") {
            mask = mask.slice(4);
            utc = true;
        }

        var _ = utc ? "getUTC" : "get",
			d = date[_ + "Date"](),
			D = date[_ + "Day"](),
			m = date[_ + "Month"](),
			y = date[_ + "FullYear"](),
			H = date[_ + "Hours"](),
			M = date[_ + "Minutes"](),
			s = date[_ + "Seconds"](),
			L = date[_ + "Milliseconds"](),
			o = utc ? 0 : date.getTimezoneOffset(),
			flags = {
			    d: d,
			    dd: pad(d),
			    ddd: dF.i18n.dayNames[D],
			    dddd: dF.i18n.dayNames[D + 7],
			    m: m + 1,
			    mm: pad(m + 1),
			    mmm: dF.i18n.monthNames[m],
			    mmmm: dF.i18n.monthNames[m + 12],
			    yy: String(y).slice(2),
			    yyyy: y,
			    h: H % 12 || 12,
			    hh: pad(H % 12 || 12),
			    H: H,
			    HH: pad(H),
			    M: M,
			    MM: pad(M),
			    s: s,
			    ss: pad(s),
			    l: pad(L, 3),
			    L: pad(L > 99 ? Math.round(L / 10) : L),
			    t: H < 12 ? "a" : "p",
			    tt: H < 12 ? "am" : "pm",
			    T: H < 12 ? "A" : "P",
			    TT: H < 12 ? "AM" : "PM",
			    Z: utc ? "UTC" : (String(date).match(timezone) || [""]).pop().replace(timezoneClip, ""),
			    o: (o > 0 ? "-" : "+") + pad(Math.floor(Math.abs(o) / 60) * 100 + Math.abs(o) % 60, 4),
			    S: ["th", "st", "nd", "rd"][d % 10 > 3 ? 0 : (d % 100 - d % 10 != 10) * d % 10]
			};

        return mask.replace(token, function ($0) {
            return $0 in flags ? flags[$0] : $0.slice(1, $0.length - 1);
        });
    };
} ();

// Some common format strings
dateFormat.masks = {
    "default": "ddd mmm dd yyyy HH:MM:ss",
    shortDate: "m/d/yy",
    mediumDate: "mmm d, yyyy",
    longDate: "mmmm d, yyyy",
    fullDate: "dddd, mmmm d, yyyy",
    shortTime: "h:MM TT",
    mediumTime: "h:MM:ss TT",
    longTime: "h:MM:ss TT Z",
    isoDate: "yyyy-mm-dd",
    isoTime: "HH:MM:ss",
    isoDateTime: "yyyy-mm-dd'T'HH:MM:ss",
    isoUtcDateTime: "UTC:yyyy-mm-dd'T'HH:MM:ss'Z'"
};

// Internationalization strings
dateFormat.i18n = {
    dayNames: [
		"Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat",
		"Sunday", "Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday"
	],
    monthNames: [
		"Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec",
		"January", "February", "March", "April", "May", "June", "July", "August", "September", "October", "November", "December"
	]
};

// For convenience...
Date.prototype.format = function (mask, utc) {
    return dateFormat(this, mask, utc);
};

/******************************************************/
// http://trentrichardson.com/2011/09/27/better-javascript-date-add-and-diff/
// changed name from adjust to add...
//      var d = new Date();
//      d.add('hour', -10);
//      console.log(d);

Date.prototype.add = function (part, amount) {
    part = part.toLowerCase();
    switch (part) {
        case 'day':
        case 'd':
            part = 'days';
            break;
    }


    var map = {
        years: 'FullYear', months: 'Month', weeks: 'Hours', days: 'Hours', hours: 'Hours',
        minutes: 'Minutes', seconds: 'Seconds', milliseconds: 'Milliseconds',
        utcyears: 'UTCFullYear', utcmonths: 'UTCMonth', weeks: 'UTCHours', utcdays: 'UTCHours',
        utchours: 'UTCHours', utcminutes: 'UTCMinutes', utcseconds: 'UTCSeconds', utcmilliseconds: 'UTCMilliseconds'
    },
        mapPart = map[part];

    if (part == 'weeks' || part == 'utcweeks')
        amount *= 168;
    if (part == 'days' || part == 'utcdays')
        amount *= 24;

    this['set' + mapPart](this['get' + mapPart]() + amount);

    return this;
}

//        d2.add('days', 450);

//        d1.diff(d2, 'weeks');
//        // returns integer 64

//        d1.diff(d2, ['months', 'weeks', 'days']);
//        // returns { months: 14, weeks: 3, days: 2 }


Date.prototype.diff = function (date2, parts) {
    var d1 = new Date(this.getTime()),
        d2 = new Date(date2.getTime()),
        pm = d1 <= d2 ? 1 : -1,
        result = {},
        factors = { weeks: (1000 * 60 * 60 * 24 * 7), days: (1000 * 60 * 60 * 24), hours: (1000 * 60 * 60), minutes: (1000 * 60), seconds: 1000, milliseconds: 1 };

    if (parts === undefined)
        parts = ['years', 'months', 'weeks', 'days', 'hours', 'minutes', 'seconds', 'milliseconds'];
    else if (typeof (parts) == "string")
        parts = [parts];

    for (var i = 0, l = parts.length; i < l; i++) {
        var k = parts[i];
        result[k] = 0;

        if (factors[k] === undefined) {
            inaWhile: while (true) {
                d2.adjust(k, -1 * pm);
                if ((pm === 1 && d1 > d2) || (pm === -1 && d1 < d2)) {
                    d2.adjust(k, 1 * pm);
                    break inaWhile;
                }
                result[k]++;
            }
        }
        else {
            var tmpDiff = Math.abs(d2.getTime() - d1.getTime());
            result[k] = Math.floor(tmpDiff / factors[k]);
            d2.adjust(k, result[k] * -1 * pm);
        }
        result[k] *= pm;
    }

    if (parts.length == 1)
        return result[parts[0]];
    return result;
}

/******************************************************/