/**
* Ojbect Oriented Javascript Cookies
*
* Copyright (c) 2009 Dominique Kimbell
* Dual licensed under the MIT and GPL licenses:
* http://www.opensource.org/licenses/mit-license.php
* http://www.gnu.org/licenses/gpl.html
*
*/

/**
* Instantiate a cookie object and assign values.
* @example var c = new cookie();
*
* @desc Set the value of a cookie.
* @example c.field1 = value1;
c.field2 = value2;
* @desc Create a cookie with all available options.			
* @example cookie.set({ expires: 7, path: '/', domain: 'jquery.com', secure: true });
 
* @desc Create a session cookie.
* @example cookie.set();
 
* @desc Delete a cookie by passing null as value. Keep in mind that you have to use the same path and domain
*       used when the cookie was set.
* @example cookie.set(null);
* 
* @param Object options An object literal containing key/value pairs to provide optional cookie attributes.
* @option Number|Date expires Either an integer specifying the expiration date from now on in days or a Date object.
*                             If a negative value is specified (e.g. a date in the past), the cookie will be deleted.
*                             If set to null or omitted, the cookie will be a session cookie and will not be retained
*                             when the the browser exits.
* @option String path The value of the path atribute of the cookie (default: path of page that created the cookie).
* @option String domain The value of the domain attribute of the cookie (default: domain of page that created the cookie).
* @option Boolean secure If true, the secure attribute of the cookie will be set and the cookie transmission will
*                        require a secure protocol (like HTTPS).
* @type Object
*/

/**
* Get the value of a cookie.
*
* @desc Get the value of a cookie.
* @example c.get().field;
*
* @optional set/get name of cookie. 
* 		Default: cookie****... (x = digit);
* @desc set/get cookie name syntax: 
* @example c.cookieID = "cookieName" !Important! 'cookieID' is reserved word!
* @type String
*/

jQuery.cookie = function() {
    var url = location.href;
    var filter = ":/.%-_", id = ''; ID = 0;
    for (var ch in url) if (filter.indexOf(ch) == -1) id += ch;
    for (var ch in id) ID += ch.charCodeAt();
    this.cookieID = "cookie" + ID;

    this.set = function(options) {
        var cookieContent = '';
        var filterProperties = { "cookieID": 0, "set": 1, "get": 2 };
        options = options || {};
        for (var property in this) {
            if (!(property in filterProperties)) {
                if (this[property] === null) this[property] = '';
                cookieContent += (property) + ':' + (this[property]) + ',';
            }
        }
        cookieContent = cookieContent.substring(0, cookieContent.length - 1);
        var expires = '';
        if (options.expires && (typeof options.expires == 'number' || options.expires.toUTCString)) {
            var date;
            if (typeof options.expires == 'number') {
                date = new Date();
                date.setTime(date.getTime() + (options.expires * 24 * 60 * 60 * 1000));
            } else {
                date = options.expires;
            }
            expires = '; expires=' + date.toUTCString(); // use expires attribute, max-age is not supported by IE
        }
        // CAUTION: Needed to parenthesize options.path and options.domain
        // in the following expressions, otherwise they evaluate to undefined
        // in the packed version for some reason...
        var path = options.path ? '; path=' + (options.path) : '';
        var domain = options.domain ? '; domain=' + (options.domain) : '';
        var secure = options.secure ? '; secure' : '';
        document.cookie = [this.cookieID, '=', encodeURIComponent(cookieContent), expires, path, domain, secure].join('');
        return true;
    };

    this.get = function() {
        var cookieValue = '';
        if (document.cookie && document.cookie != '') {
            var cookies = document.cookie.split(';');
            for (var i = 0; i < cookies.length; i++) {
                var cookie = jQuery.trim(cookies[i]);
                // Does this cookie string begin with the name we want?
                if (cookie.substring(0, this.cookieID.length + 1) == (this.cookieID + '=')) {
                    cookieValue = decodeURIComponent(cookie.substring(this.cookieID.length + 1));
                    break;
                }
            }
            var properties = cookieValue.split(',');
            for (var i = 0; i < properties.length; i++) {
                var property = properties[i].split(':');
                this[property[0]] = property[1];
            }
        }
        return true;
    };
    return this;
};