(function($) {
    
    /*
    * Syntax:
    * $.create(element[, attributes[, children]])
    */
    
     // register jQuery extension
    $.extend({
        create: function(element, attributes, children) {
        
            // create new element
            var elem = $(document.createElement(element));
            
            // add passed attributes
            if (typeof(attributes) == 'object') {
                for (key in attributes) {
                    elem.attr(key, attributes[key]);
                }
            }
            
            // add passed child elements
            if (typeof(children) == 'string') {
                elem.text(children);
            } else if (typeof(children) == 'object') {
                for (i = 0; i < children.length; i++) {
                    elem.append(children[i]);
                }
            }
            return elem;
        }
    });

})(jQuery);

(function($) {
    
    /*
    * @example $.cookie('the_cookie', 'the_value', { expires: 7, path: '/', domain: 'jquery.com', secure: true });
    * @desc Create a cookie with all available options.
    */
    // register jQuery extension
    $.extend({
        cookie: function(name, value, options) {
            if (typeof value != 'undefined') { // name and value given, set cookie
                options = options || {};
                if (value === null) {
                    value = '';
                    options.expires = -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 = [name, '=', encodeURIComponent(value), expires, path, domain, secure].join('');
            } else { // only name given, get cookie
                var cookieValue = null;
                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, name.length + 1) == (name + '=')) {
                            cookieValue = decodeURIComponent(cookie.substring(name.length + 1));
                            break;
                        }
                    }
                }
                return cookieValue;
            }
        }
    });

})(jQuery);

(function($) {   
    function toIntegersAtLease(n) 
    // Format integers to have at least two digits.
    {    
        return n < 10 ? '0' + n : n;
    }

    Date.prototype.toJSON = function(date)
    // Yes, it polutes the Date namespace, but we'll allow it here, as
    // it's damned usefull.
    {
        return this.getUTCFullYear()   + '-' +
             toIntegersAtLease(this.getUTCMonth()) + '-' +
             toIntegersAtLease(this.getUTCDate());
    };

    var escapeable = /["\\\x00-\x1f\x7f-\x9f]/g;
    var meta = {    // table of character substitutions
            '\b': '\\b',
            '\t': '\\t',
            '\n': '\\n',
            '\f': '\\f',
            '\r': '\\r',
            '"' : '\\"',
            '\\': '\\\\'
        };
        
    $.quoteString = function(string)
    // Places quotes around a string, inteligently.
    // If the string contains no control characters, no quote characters, and no
    // backslash characters, then we can safely slap some quotes around it.
    // Otherwise we must also replace the offending characters with safe escape
    // sequences.
    {
        if (escapeable.test(string))
        {
            return '"' + string.replace(escapeable, function (a) 
            {
                var c = meta[a];
                if (typeof c === 'string') {
                    return c;
                }
                c = a.charCodeAt();
                return '\\u00' + Math.floor(c / 16).toString(16) + (c % 16).toString(16);
            }) + '"';
        }
        return '"' + string + '"';
    };
    
    $.toJSON = function(o, compact)
    {
        var type = typeof(o);
        
        if (type == "undefined")
            return "undefined";
        else if (type == "number" || type == "boolean")
            return o + "";
        else if (o === null)
            return "null";
        
        // Is it a string?
        if (type == "string") 
        {
            return $.quoteString(o);
        }
        
        // Does it have a .toJSON function?
        if (type == "object" && typeof o.toJSON == "function") 
            return o.toJSON(compact);
        
        // Is it an array?
        if (type != "function" && typeof(o.length) == "number") 
        {
            var ret = [];
            for (var i = 0; i < o.length; i++) {
                ret.push( $.toJSON(o[i], compact) );
            }
            if (compact)
                return "[" + ret.join(",") + "]";
            else
                return "[" + ret.join(", ") + "]";
        }
        
        // If it's a function, we have to warn somebody!
        if (type == "function") {
            throw new TypeError("Unable to convert object of type 'function' to json.");
        }
        
        // It's probably an object, then.
        var ret = [];
        for (var k in o) {
            var name;
            type = typeof(k);
            
            if (type == "number")
                name = '"' + k + '"';
            else if (type == "string")
                name = $.quoteString(k);
            else
                continue;  //skip non-string or number keys
            
            var val = $.toJSON(o[k], compact);
            if (typeof(val) != "string") {
                // skip non-serializable values
                continue;
            }
            
            if (compact)
                ret.push(name + ":" + val);
            else
                ret.push(name + ": " + val);
        }
        return "{" + ret.join(", ") + "}";
    };
    
    $.compactJSON = function(o)
    {
        return $.toJSON(o, true);
    };
    
    $.evalJSON = function(src)
    // Evals JSON that we know to be safe.
    {
        return eval("(" + src + ")");
    };
    
    $.secureEvalJSON = function(src)
    // Evals JSON in a way that is *more* secure.
    {
        var filtered = src;
        filtered = filtered.replace(/\\["\\\/bfnrtu]/g, '@');
        filtered = filtered.replace(/"[^"\\\n\r]*"|true|false|null|-?\d+(?:\.\d*)?(?:[eE][+\-]?\d+)?/g, ']');
        filtered = filtered.replace(/(?:^|:|,)(?:\s*\[)+/g, '');
        
        if (/^[\],:{}\s]*$/.test(filtered))
            return eval("(" + src + ")");
        else
            throw new SyntaxError("Error parsing JSON, source is not valid.");
    };
})(jQuery);