/*http://www.JSON.org/json2.js*/
// Create a JSON object only if one does not already exist. We create the
// methods in a closure to avoid creating global variables.
var JSON;
if (!JSON) {
    JSON = {};
}

(function () {
    'use strict';

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

    if (typeof Date.prototype.toJSON !== 'function') {

        Date.prototype.toJSON = function (key) {

            return isFinite(this.valueOf())
                ? this.getUTCFullYear() + '-' +
                    f(this.getUTCMonth() + 1) + '-' +
                    f(this.getUTCDate()) + 'T' +
                    f(this.getUTCHours()) + ':' +
                    f(this.getUTCMinutes()) + ':' +
                    f(this.getUTCSeconds()) + 'Z'
                : null;
        };

        String.prototype.toJSON =
            Number.prototype.toJSON =
            Boolean.prototype.toJSON = function (key) {
                return this.valueOf();
            };
    }

    var cx = /[\u0000\u00ad\u0600-\u0604\u070f\u17b4\u17b5\u200c-\u200f\u2028-\u202f\u2060-\u206f\ufeff\ufff0-\uffff]/g,
        escapable = /[\\\"\x00-\x1f\x7f-\x9f\u00ad\u0600-\u0604\u070f\u17b4\u17b5\u200c-\u200f\u2028-\u202f\u2060-\u206f\ufeff\ufff0-\uffff]/g,
        gap,
        indent,
        meta = {    // table of character substitutions
            '\b': '\\b',
            '\t': '\\t',
            '\n': '\\n',
            '\f': '\\f',
            '\r': '\\r',
            '"': '\\"',
            '\\': '\\\\'
        },
        rep;


    function quote(string) {

        // 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.

        escapable.lastIndex = 0;
        return escapable.test(string) ? '"' + string.replace(escapable, function (a) {
            var c = meta[a];
            return typeof c === 'string'
                ? c
                : '\\u' + ('0000' + a.charCodeAt(0).toString(16)).slice(-4);
        }) + '"' : '"' + string + '"';
    }


    function str(key, holder) {

        // Produce a string from holder[key].

        var i,          // The loop counter.
            k,          // The member key.
            v,          // The member value.
            length,
            mind = gap,
            partial,
            value = holder[key];

        // If the value has a toJSON method, call it to obtain a replacement value.

        if (value && typeof value === 'object' &&
                typeof value.toJSON === 'function') {
            value = value.toJSON(key);
        }

        // If we were called with a replacer function, then call the replacer to
        // obtain a replacement value.

        if (typeof rep === 'function') {
            value = rep.call(holder, key, value);
        }

        // What happens next depends on the value's type.

        switch (typeof value) {
            case 'string':
                return quote(value);

            case 'number':

                // JSON numbers must be finite. Encode non-finite numbers as null.

                return isFinite(value) ? String(value) : 'null';

            case 'boolean':
            case 'null':

                // If the value is a boolean or null, convert it to a string. Note:
                // typeof null does not produce 'null'. The case is included here in
                // the remote chance that this gets fixed someday.

                return String(value);

                // If the type is 'object', we might be dealing with an object or an array or
                // null.

            case 'object':

                // Due to a specification blunder in ECMAScript, typeof null is 'object',
                // so watch out for that case.

                if (!value) {
                    return 'null';
                }

                // Make an array to hold the partial results of stringifying this object value.

                gap += indent;
                partial = [];

                // Is the value an array?

                if (Object.prototype.toString.apply(value) === '[object Array]') {

                    // The value is an array. Stringify every element. Use null as a placeholder
                    // for non-JSON values.

                    length = value.length;
                    for (i = 0; i < length; i += 1) {
                        partial[i] = str(i, value) || 'null';
                    }

                    // Join all of the elements together, separated with commas, and wrap them in
                    // brackets.

                    v = partial.length === 0
                    ? '[]'
                    : gap
                    ? '[\n' + gap + partial.join(',\n' + gap) + '\n' + mind + ']'
                    : '[' + partial.join(',') + ']';
                    gap = mind;
                    return v;
                }

                // If the replacer is an array, use it to select the members to be stringified.

                if (rep && typeof rep === 'object') {
                    length = rep.length;
                    for (i = 0; i < length; i += 1) {
                        if (typeof rep[i] === 'string') {
                            k = rep[i];
                            v = str(k, value);
                            if (v) {
                                partial.push(quote(k) + (gap ? ': ' : ':') + v);
                            }
                        }
                    }
                } else {

                    // Otherwise, iterate through all of the keys in the object.

                    for (k in value) {
                        if (Object.prototype.hasOwnProperty.call(value, k)) {
                            v = str(k, value);
                            if (v) {
                                partial.push(quote(k) + (gap ? ': ' : ':') + v);
                            }
                        }
                    }
                }

                // Join all of the member texts together, separated with commas,
                // and wrap them in braces.

                v = partial.length === 0
                ? '{}'
                : gap
                ? '{\n' + gap + partial.join(',\n' + gap) + '\n' + mind + '}'
                : '{' + partial.join(',') + '}';
                gap = mind;
                return v;
        }
    }

    // If the JSON object does not yet have a stringify method, give it one.

    if (typeof JSON.stringify !== 'function') {
        JSON.stringify = function (value, replacer, space) {

            // The stringify method takes a value and an optional replacer, and an optional
            // space parameter, and returns a JSON text. The replacer can be a function
            // that can replace values, or an array of strings that will select the keys.
            // A default replacer method can be provided. Use of the space parameter can
            // produce text that is more easily readable.

            var i;
            gap = '';
            indent = '';

            // If the space parameter is a number, make an indent string containing that
            // many spaces.

            if (typeof space === 'number') {
                for (i = 0; i < space; i += 1) {
                    indent += ' ';
                }

                // If the space parameter is a string, it will be used as the indent string.

            } else if (typeof space === 'string') {
                indent = space;
            }

            // If there is a replacer, it must be a function or an array.
            // Otherwise, throw an error.

            rep = replacer;
            if (replacer && typeof replacer !== 'function' &&
                    (typeof replacer !== 'object' ||
                    typeof replacer.length !== 'number')) {
                throw new Error('JSON.stringify');
            }

            // Make a fake root object containing our value under the key of ''.
            // Return the result of stringifying the value.

            return str('', { '': value });
        };
    }


    // If the JSON object does not yet have a parse method, give it one.

    if (typeof JSON.parse !== 'function') {
        JSON.parse = function (text, reviver) {

            // The parse method takes a text and an optional reviver function, and returns
            // a JavaScript value if the text is a valid JSON text.

            var j;

            function walk(holder, key) {

                // The walk method is used to recursively walk the resulting structure so
                // that modifications can be made.

                var k, v, value = holder[key];
                if (value && typeof value === 'object') {
                    for (k in value) {
                        if (Object.prototype.hasOwnProperty.call(value, k)) {
                            v = walk(value, k);
                            if (v !== undefined) {
                                value[k] = v;
                            } else {
                                delete value[k];
                            }
                        }
                    }
                }
                return reviver.call(holder, key, value);
            }


            // Parsing happens in four stages. In the first stage, we replace certain
            // Unicode characters with escape sequences. JavaScript handles many characters
            // incorrectly, either silently deleting them, or treating them as line endings.

            text = String(text);
            cx.lastIndex = 0;
            if (cx.test(text)) {
                text = text.replace(cx, function (a) {
                    return '\\u' +
                        ('0000' + a.charCodeAt(0).toString(16)).slice(-4);
                });
            }

            // In the second stage, we run the text against regular expressions that look
            // for non-JSON patterns. We are especially concerned with '()' and 'new'
            // because they can cause invocation, and '=' because it can cause mutation.
            // But just to be safe, we want to reject all unexpected forms.

            // We split the second stage into 4 regexp operations in order to work around
            // crippling inefficiencies in IE's and Safari's regexp engines. First we
            // replace the JSON backslash pairs with '@' (a non-JSON character). Second, we
            // replace all simple value tokens with ']' characters. Third, we delete all
            // open brackets that follow a colon or comma or that begin the text. Finally,
            // we look to see that the remaining characters are only whitespace or ']' or
            // ',' or ':' or '{' or '}'. If that is so, then the text is safe for eval.

            if (/^[\],:{}\s]*$/
                    .test(text.replace(/\\(?:["\\\/bfnrt]|u[0-9a-fA-F]{4})/g, '@')
                        .replace(/"[^"\\\n\r]*"|true|false|null|-?\d+(?:\.\d*)?(?:[eE][+\-]?\d+)?/g, ']')
                        .replace(/(?:^|:|,)(?:\s*\[)+/g, ''))) {

                // In the third stage we use the eval function to compile the text into a
                // JavaScript structure. The '{' operator is subject to a syntactic ambiguity
                // in JavaScript: it can begin a block or an object literal. We wrap the text
                // in parens to eliminate the ambiguity.

                j = eval('(' + text + ')');

                // In the optional fourth stage, we recursively walk the new structure, passing
                // each name/value pair to a reviver function for possible transformation.

                return typeof reviver === 'function'
                    ? walk({ '': j }, '')
                    : j;
            }

            // If the text is not JSON parseable, then a SyntaxError is thrown.

            throw new SyntaxError('JSON.parse');
        };
    }
} ());
/* END : https://raw.github.com/douglascrockford/JSON-js/master/json2.js */


(function ($) {
    // @todo Document this.
    $.extend($, { placeholder: {
        browser_supported: function () {
            return this._supported !== undefined ?
          this._supported :
          (this._supported = !!('placeholder' in $('<input type="text">')[0]));
        },
        shim: function (opts) {
            var config = {
                color: '#888',
                cls: 'placeholder',
                lr_padding: 4,
                selector: 'input[placeholder], textarea[placeholder]'
            };
            $.extend(config, opts);
            !this.browser_supported() && $(config.selector)._placeholder_shim(config);
        }
    }
    });

    $.extend($.fn, {
        _placeholder_shim: function (config) {
            function calcPositionCss(target) {
                var op = $(target).offsetParent().offset();
                var ot = $(target).offset();

                return {
                    top: ot.top - op.top + ($(target).outerHeight() - $(target).height()) / 2,
                    left: ot.left - op.left + config.lr_padding,
                    width: $(target).width() - config.lr_padding
                };
            }
            return this.each(function () {
                var $this = $(this);

                if ($this.data('placeholder')) {
                    var $ol = $this.data('placeholder');
                    $ol.css(calcPositionCss($this));
                    return true;
                }

                var possible_line_height = {};
                if (!$this.is('textarea') && $this.css('height') != 'auto') {
                    possible_line_height = { lineHeight: $this.css('height'), whiteSpace: 'nowrap' };
                }

                var ol = $('<label />')
          .text($this.attr('placeholder'))
          .addClass(config.cls)
          .css($.extend({
              position: 'absolute',
              display: 'inline',
              float: 'none',
              overflow: 'hidden',
              textAlign: 'left',
              color: config.color,
              cursor: 'text',
              paddingTop: $this.css('padding-top'),
              paddingLeft: $this.css('padding-left'),
              fontSize: $this.css('font-size'),
              fontFamily: $this.css('font-family'),
              fontStyle: $this.css('font-style'),
              fontWeight: $this.css('font-weight'),
              textTransform: $this.css('text-transform'),
              zIndex: 99
          }, possible_line_height))
          .css(calcPositionCss(this))
          .attr('for', this.id)
          .data('target', $this)
          .click(function () {
              if ($this.data('target')) $this.data('target').focus()
          })
          .insertBefore(this);
                $this
          .data('placeholder', ol)
          .focus(function () {
              ol.hide();
          }).blur(function () {
              ol[$this.val().length ? 'hide' : 'show']();
          }).triggerHandler('blur');
                $(window)
          .resize(function () {
              var $target = ol.data('target')
              ol.css(calcPositionCss($target))
          });
            });
        }
    });
})(jQuery);

jQuery(document).add(window).bind('ready load', function () {
    if (jQuery.placeholder) {
        jQuery.placeholder.shim();
    }
});

// Remy Sharp's HTML5 localStorage polyfill. https://gist.github.com/350433
if (typeof window.localStorage == 'undefined' || typeof window.sessionStorage == 'undefined') (function () {

    var Storage = function (type) {
        function createCookie(name, value, days) {
            var date, expires;

            if (days) {
                date = new Date();
                date.setTime(date.getTime() + (days * 24 * 60 * 60 * 1000));
                expires = "; expires=" + date.toGMTString();
            } else {
                expires = "";
            }
            document.cookie = name + "=" + value + expires + "; path=/";
        }

        function readCookie(name) {
            var nameEQ = name + "=",
        ca = document.cookie.split(';'),
        i, c;

            for (i = 0; i < ca.length; i++) {
                c = ca[i];
                while (c.charAt(0) == ' ') {
                    c = c.substring(1, c.length);
                }

                if (c.indexOf(nameEQ) == 0) {
                    return c.substring(nameEQ.length, c.length);
                }
            }
            return null;
        }

        function setData(data) {
            data = JSON.stringify(data);
            if (type == 'session') {
                window.name = data;
            } else {
                createCookie('localStorage', data, 365);
            }
        }

        function clearData() {
            if (type == 'session') {
                window.name = '';
            } else {
                createCookie('localStorage', '', 365);
            }
        }

        function getData() {
            if (type == 'session' && window.name.indexOf("{") == -1) // If the window name has been set then it can't be used
                return {};
            var data = type == 'session' ? winName : readCookie('localStorage');
            return data ? JSON.parse(data) : {};
        }
        
        // initialise if there's already data
        var data = getData();

        return {
            length: 0,
            clear: function () {
                data = {};
                this.length = 0;
                clearData();
            },
            getItem: function (key) {
                return data[key] === undefined ? null : data[key];
            },
            key: function (i) {
                // not perfect, but works
                var ctr = 0;
                for (var k in data) {
                    if (ctr == i) return k;
                    else ctr++;
                }
                return null;
            },
            removeItem: function (key) {
                delete data[key];
                this.length--;
                setData(data);
            },
            setItem: function (key, value) {
                data[key] = value + ''; // forces the value to a string
                this.length++;
                setData(data);
            }
        };
    };

    if (typeof window.localStorage == 'undefined') window.localStorage = new Storage('local');
    if (typeof window.sessionStorage == 'undefined') window.sessionStorage = new Storage('session');

})();