function processInput(input, defaultValue, action)
{
    if (action == undefined)
    {
        action = processInput.caller.name;
    }
    if (!action) action = processInput.caller;
    if ( (action == 'onfocus') && (input.value == defaultValue) )
    {
        input.value = '';
    }
    else
    if ((action == 'onblur') && (input.value == ''))
    {
        input.value = defaultValue;
    }
}


//------------------------------------------------------------------------------

function showSuggest(suggest_html)
{
    removeSuggest();
    var suggest = document.createElement('ul')
    suggest.id = 'suggest';
    suggest.innerHTML = suggest_html;
    document.getElementById('search').appendChild(suggest);
    suggest.style.display = 'block';
}

function removeSuggest()
{
    var suggest = document.getElementById('suggest');
    if (suggest != undefined)
    {
        suggest.style.display ='none';
        removedSuggest = suggest.parentNode.removeChild(suggest);
        removedSuggest = null;
    }
}


//------------------------------------------------------------------------------

function showBasket()
{
    document.getElementById('fade').style.display = 'block';
    document.getElementById('basket').style.display = 'block';
}

function hideBasket()
{
    document.getElementById('fade').style.display = 'none';
    document.getElementById('basket').style.display = 'none';
    
    document.getElementById('tab_1').onclick = function () { switchTab(this); return false; };
    document.getElementById('tab_2').onclick = function () { switchTab(this); return false; };
    $('#basket form').css('display', 'none');
    $('finish-message').css('display', 'block');
    
    switchTab(document.getElementById('tab_1'));
    
    updateCart();
}

function switchTab(targetTab)
{
    var basket = document.getElementById('basket');
    
    if (basket.className == 'empty')
        return false;
    /*var activeTab = document.getElementById('tabs').getElementsByClassName('active');*/

    var activeTab = $('#tabs .active');
/*    alert('asd' + activeTabAlt[0] + ' and ' + activeTab[0]); */
    
    if (activeTab[0] != undefined)
        activeTab = activeTab[0];
    else
        return false;
    
    activeTab.className = '';
    targetTab.className = 'active';
    $('#basket .' + activeTab.id).css('display', 'none');
    /*basket.getElementsByClassName(activeTab.id)[0].style.display = 'none';*/
    $('#basket .' + targetTab.id).css('display', 'block');
    /*basket.getElementsByClassName(targetTab.id)[0].style.display = 'block';*/
    
    if (targetTab.id != 'tab_1')
    {
        basket.className = 'not-first-step';
        document.getElementById('main-submit').value = 'Подтвердить заказ';
        document.getElementById('main-submit').onclick = function() { makeOrder();}
    }
    else
    {
        basket.className = '';
        document.getElementById('main-submit').value = 'Оформить заказ';
        document.getElementById('main-submit').onclick = function() { switchTab(document.getElementById('tab_2')); }
    }
}

function addNumber(container, classToClone, link_element)
{
    if ($('#basket .tel').length == 3)
        return false;
    var newNode = $(container).children('.' + classToClone)[0].cloneNode(true)
    $(newNode).find('input[type=text]').val('');
    var stopElement = $(container).find('.on-page')[0].parentNode;
    //var stopElement = container.getElementsByClassName('on-page')[0].parentNode;
    container.insertBefore(newNode, stopElement);
    if (($('#basket .tel').length > 1) && (container.className.match('single')))
    {
        container.className = container.className.replace(' single', '');
    }
    
    if ($('#basket .tel').length == 3)
        $('#add-telephone-number-control').addClass('invisible');
}

function removeNumber(containerToRemove)
{
    var container = containerToRemove.parentNode;
    if ($(container).find('.tel').length < 2)
    {
        return false;
    }
    else
    if ($(container).find('.tel').length == 2)
    {
        container.className += ' single';
    }
    container.removeChild(containerToRemove);
    $('#add-telephone-number-control').removeClass('invisible');
}

function changeDelieverWay(select)
{
    var container = select.parentNode.parentNode;
    
    if (select[select.selectedIndex].value == 'by-ownself') {
        toShow = 'by-ownself';
        toHide = 'by-post';
    }
    else {
        toShow = 'by-post';
        toHide = 'by-ownself';
    }
    $('#basket .' + toShow).css('display', 'inline-block');
    $('#basket .' + toHide).css('display', 'none');

/*
    toShow = container.getElementsByClassName(toShow);
    toHide = container.getElementsByClassName(toHide);
    
    for (i = 0; i < toShow.length; i++) {
        toShow[i].style.display = 'inline-block';
    }
    
    for (i = 0; i < toHide.length; i++) {
        toHide[i].style.display = 'none';
    }
*/
}

var order_form_selector = '#order-form';
var order_url = '/front/default/order';

function makeOrder()
{
    $.post(
        order_url,
        $(order_form_selector).serialize(),
        function (data) {
            if ( data.length > 0 ) {
                alert(data);
            }
            else {
                document.getElementById('tab_1').onclick = function () { return false; };
                document.getElementById('tab_2').onclick = function () { return false; };
                document.getElementById('basket').getElementsByTagName('form')[0].style.display = 'none';
                document.getElementById('finish-message').style.display = 'block';
            }
        },
        'text');
}


//------------------------------------------------------------------------------

function ShoppingCart(cart_cookie_lifetime, cart_cookie_name, product_variant_separator)
{
    cart_cookie_lifetime      = cart_cookie_lifetime      || 366;
    cart_cookie_name          = cart_cookie_name          || 'shopping-cart-products';
    product_variant_separator = product_variant_separator || '_';
    
    function storeCart(cart)
    {
        return $.cookie(cart_cookie_name, JSON.stringify(cart), { expires: cart_cookie_lifetime, path: '/' });
    }
    
    this.getCartItemName = function (product_id, variant_id)
    {
        return product_id + product_variant_separator + variant_id;
    };
    
    this.getCart = function ()
    {
        var cart = JSON.parse($.cookie(cart_cookie_name));
        return cart == null ? {} : cart;
    };
    
    this.getCartItemCount = function (product_id, variant_id)
    {
        var count = this.getCart()[this.getCartItemName(product_id, variant_id)];
        return (typeof count == 'undefined') ? 0 : count;
    };
    
    this.setInCart = function (product_id, variant_id, count)
    {
        var cart = this.getCart();
        var cart_item_name = this.getCartItemName(product_id, variant_id);
        
        if ( count > 0 )
            cart[cart_item_name] = parseInt(count);
        else
            delete cart[cart_item_name];
        
        storeCart(cart);
    };
    
    this.removeFromCart = function (product_id, variant_id)
    {
        if (typeof variant_id == 'undefined') {
            var product_pattern = new RegExp('^' + RegExp.escape(this.getCartItemName(product_id, '__VARIANT_ID__')).replace('__VARIANT_ID__', '(\\d+)') + '$');
            var cart = this.getCart();
            
            for (var cart_item_name in cart) {
                var matches = product_pattern.exec(cart_item_name);
                
                if (matches != null)
                    this.setInCart(product_id, matches[1], 0);
            }
        }
        else
            this.setInCart(product_id, variant_id, 0);
    };
    
    this.addToCart = function (product_id, variant_id, count)
    {
        var count = this.getCartItemCount(product_id, variant_id) + parseInt(count);
        this.setInCart(product_id, variant_id, count);
    };
}


//------------------------------------------------------------------------------

var update_cart_url = '/front/default/shoppingCart';

var cart_selector = '#basket';
var cart_form_selector = cart_selector + ' #body';
var cart_total_price_selector = '#total-cost strong span';

var cart_summary_count_selector = '#basket-status .quantity';
var cart_summary_price_selector = '#basket-status .total-price';

var cart_variant_container_selector_pattern = '#cart-product-variant-__ID__';
var cart_variant_input_count_selector_part  = '.quantity input';
var cart_variant_price_selector_part        = '.pack-info .price span';

var cart_product_container_selector_pattern = '#cart-product-__ID__';
var cart_product_total_price_selector_part  = '.cost > span > span';

var cart_product_invisible_variants_selector_part = 'ul.sets li.invisible';
var cart_product_invisible_deletes_selector_part  = 'ul.sets li .delete';

var cart = new ShoppingCart();


//------------------------------------------------------------------------------

function getCartVariantSelector(variant_id)
{
    return cart_variant_container_selector_pattern.replace('__ID__', variant_id);
}

function getCartVariantInputCountSelector(variant_id)
{
    return getCartVariantSelector(variant_id) + ' ' + cart_variant_input_count_selector_part;
}

function getCartVariantPriceSelector(variant_id)
{
    return getCartVariantSelector(variant_id) + ' ' + cart_variant_price_selector_part;
}

function getCartProductSelector(product_id)
{
    return cart_product_container_selector_pattern.replace('__ID__', product_id);
}

function getCartProductTotalPriceSelector(product_id)
{
    return getCartProductSelector(product_id) + ' ' + cart_product_total_price_selector_part;
}

function getCartProductInvisibleVariantsSelector(product_id)
{
    return getCartProductSelector(product_id) + ' ' + cart_product_invisible_variants_selector_part;
}

function getCartProductInvisibleDeletesSelector(product_id)
{
    return getCartProductSelector(product_id) + ' ' + cart_product_invisible_deletes_selector_part;
}


//------------------------------------------------------------------------------

function updateCartSummary()
{
    var summary_count = 0;
    var cart_items = cart.getCart();
    for (var i in cart_items)
        summary_count += parseInt(cart_items[i]);
    
    var summary_price = $(cart_total_price_selector).text();
    if (summary_price.length == 0)
        summary_price = 0;
    
    $(cart_summary_count_selector).text(summary_count);
    $(cart_summary_price_selector).text(parseFloat(summary_price).toFixed(2));
}

function updateCart()
{
    $.ajaxSetup({ cache: false });
    $(cart_form_selector).load(update_cart_url, function () {
        if (isEmpty(cart.getCart()))
            $(cart_selector).addClass('empty');
        else
            $(cart_selector).removeClass('empty');
        
        updateCartSummary();
    });
    $.ajaxSetup({ cache: true });
}

function showNotification(text, title, icon)
{
    title = title || 'Herbs';
    icon  = icon || '/favicon.png';
    
    var has_webkit_notifications = typeof window.webkitNotifications != 'undefined';
    if ( ! has_webkit_notifications || window.webkitNotifications.checkPermission() != 0) {
        if (has_webkit_notifications)
            webkitNotifications.requestPermission();
        
        alert(title + ': ' + text);
    }
    else {
        var notification = window.webkitNotifications.createNotification('http://' + location.hostname + icon, title, text);
        setTimeout(function () { notification.cancel(); }, 3000);
        notification.show();
    }
    $('#basket-status').css('background-color', 'rgba(0 ,255, 0, 0.4)', 'border-radius', '10px');
    var x = $("#basket-status").offset().left;
    var y = $("#basket-status").offset().top;
    $.scrollTo('#basket-status');
    $('#basket-status').fadeIn(100).fadeOut(100).fadeIn(100).fadeOut(100).fadeIn(100).fadeOut(100).fadeIn(100);
}

function addToCart(product_id, variant_id, count, name, photo)
{
    cart.addToCart(product_id, variant_id, count);
    updateCart();
    
    var text = count == 1 ? 'продукт добавлен в корзину' : count + ' продуктов добавлено в корзину';
    showNotification(text, name, photo);
}

function removeFromCart(product_id, variant_id, name, photo)
{
    cart.removeFromCart(product_id, variant_id);
    updateCart();
    showNotification('продукт удален из корзины', name, photo);
}

function setInCart(product_id, variant_id, count)
{
    cart.setInCart(product_id, variant_id, count);
}

var focused_total_price;

function cartVariantFocused(product_id, variant_id)
{
    var current_count = cart.getCartItemCount(product_id, variant_id);
    var meta_price = $(getCartVariantPriceSelector(variant_id)).text();
    focused_total_price = current_count * meta_price;
}

function cartVariantBlured(product_id, variant_id)
{
    setInCart(product_id, variant_id, $(getCartVariantInputCountSelector(variant_id)).val());
    
    var current_count = cart.getCartItemCount(product_id, variant_id);
    var meta_price = $(getCartVariantPriceSelector(variant_id)).text();
    
    var price_delta = current_count * meta_price - focused_total_price;
    
    var product_total_price_item = $(getCartProductTotalPriceSelector(product_id));
    product_total_price_item.text(parseFloat(parseFloat(product_total_price_item.text()) + price_delta).toFixed(2));
    
    var cart_total_price_item = $(cart_total_price_selector);
    cart_total_price_item.text(parseFloat(parseFloat(cart_total_price_item.text()) + price_delta).toFixed(2));
    
    updateCartSummary();
}

function showOtherVariants(product_id, this_link)
{
    $(this_link).replaceWith('');
    $(getCartProductInvisibleVariantsSelector(product_id)).removeClass('invisible');
    $(getCartProductInvisibleDeletesSelector(product_id)).removeClass('invisible');
}

//------------------------------------------------------------------------------

RegExp.escape = function(str)
{
  var specials = new RegExp("[.*+?|()\\[\\]{}\\\\]", "g"); // .*+?|()[]{}\
  return str.replace(specials, "\\$&");
}

function isEmpty(obj)
{
    for (var prop in obj)
        if (obj.hasOwnProperty(prop))
            return false;
    
    return true;
};

//------------------------------------------------------------------------------

/**
 * Cookie plugin
 *
 * Copyright (c) 2006 Klaus Hartl (stilbuero.de)
 * Dual licensed under the MIT and GPL licenses:
 * http://www.opensource.org/licenses/mit-license.php
 * http://www.gnu.org/licenses/gpl.html
 *
 */

/**
 * Create a cookie with the given name and value and other optional parameters.
 *
 * @example $.cookie('the_cookie', 'the_value');
 * @desc Set the value of a cookie.
 * @example $.cookie('the_cookie', 'the_value', { expires: 7, path: '/', domain: 'jquery.com', secure: true });
 * @desc Create a cookie with all available options.
 * @example $.cookie('the_cookie', 'the_value');
 * @desc Create a session cookie.
 * @example $.cookie('the_cookie', null);
 * @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.
 *
 * @param String name The name of the cookie.
 * @param String value The value of the cookie.
 * @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 undefined
 *
 * @name $.cookie
 * @cat Plugins/Cookie
 * @author Klaus Hartl/klaus.hartl@stilbuero.de
 */

/**
 * Get the value of a cookie with the given name.
 *
 * @example $.cookie('the_cookie');
 * @desc Get the value of a cookie.
 *
 * @param String name The name of the cookie.
 * @return The value of the cookie.
 * @type String
 *
 * @name $.cookie
 * @cat Plugins/Cookie
 * @author Klaus Hartl/klaus.hartl@stilbuero.de
 */
jQuery.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;
    }
};


//------------------------------------------------------------------------------

/*
    http://www.JSON.org/json2.js
    2010-03-20

    Public Domain.

    NO WARRANTY EXPRESSED OR IMPLIED. USE AT YOUR OWN RISK.

    See http://www.JSON.org/js.html


    This code should be minified before deployment.
    See http://javascript.crockford.com/jsmin.html

    USE YOUR OWN COPY. IT IS EXTREMELY UNWISE TO LOAD CODE FROM SERVERS YOU DO
    NOT CONTROL.


    This file creates a global JSON object containing two methods: stringify
    and parse.

        JSON.stringify(value, replacer, space)
            value       any JavaScript value, usually an object or array.

            replacer    an optional parameter that determines how object
                        values are stringified for objects. It can be a
                        function or an array of strings.

            space       an optional parameter that specifies the indentation
                        of nested structures. If it is omitted, the text will
                        be packed without extra whitespace. If it is a number,
                        it will specify the number of spaces to indent at each
                        level. If it is a string (such as '\t' or '&nbsp;'),
                        it contains the characters used to indent at each level.

            This method produces a JSON text from a JavaScript value.

            When an object value is found, if the object contains a toJSON
            method, its toJSON method will be called and the result will be
            stringified. A toJSON method does not serialize: it returns the
            value represented by the name/value pair that should be serialized,
            or undefined if nothing should be serialized. The toJSON method
            will be passed the key associated with the value, and this will be
            bound to the value

            For example, this would serialize Dates as ISO strings.

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

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

            You can provide an optional replacer method. It will be passed the
            key and value of each member, with this bound to the containing
            object. The value that is returned from your method will be
            serialized. If your method returns undefined, then the member will
            be excluded from the serialization.

            If the replacer parameter is an array of strings, then it will be
            used to select the members to be serialized. It filters the results
            such that only members with keys listed in the replacer array are
            stringified.

            Values that do not have JSON representations, such as undefined or
            functions, will not be serialized. Such values in objects will be
            dropped; in arrays they will be replaced with null. You can use
            a replacer function to replace those with JSON values.
            JSON.stringify(undefined) returns undefined.

            The optional space parameter produces a stringification of the
            value that is filled with line breaks and indentation to make it
            easier to read.

            If the space parameter is a non-empty string, then that string will
            be used for indentation. If the space parameter is a number, then
            the indentation will be that many spaces.

            Example:

            text = JSON.stringify(['e', {pluribus: 'unum'}]);
            // text is '["e",{"pluribus":"unum"}]'


            text = JSON.stringify(['e', {pluribus: 'unum'}], null, '\t');
            // text is '[\n\t"e",\n\t{\n\t\t"pluribus": "unum"\n\t}\n]'

            text = JSON.stringify([new Date()], function (key, value) {
                return this[key] instanceof Date ?
                    'Date(' + this[key] + ')' : value;
            });
            // text is '["Date(---current time---)"]'


        JSON.parse(text, reviver)
            This method parses a JSON text to produce an object or array.
            It can throw a SyntaxError exception.

            The optional reviver parameter is a function that can filter and
            transform the results. It receives each of the keys and values,
            and its return value is used instead of the original value.
            If it returns what it received, then the structure is not modified.
            If it returns undefined then the member is deleted.

            Example:

            // Parse the text. Values that look like ISO date strings will
            // be converted to Date objects.

            myData = JSON.parse(text, function (key, value) {
                var a;
                if (typeof value === 'string') {
                    a =
/^(\d{4})-(\d{2})-(\d{2})T(\d{2}):(\d{2}):(\d{2}(?:\.\d*)?)Z$/.exec(value);
                    if (a) {
                        return new Date(Date.UTC(+a[1], +a[2] - 1, +a[3], +a[4],
                            +a[5], +a[6]));
                    }
                }
                return value;
            });

            myData = JSON.parse('["Date(09/09/2001)"]', function (key, value) {
                var d;
                if (typeof value === 'string' &&
                        value.slice(0, 5) === 'Date(' &&
                        value.slice(-1) === ')') {
                    d = new Date(value.slice(5, -1));
                    if (d) {
                        return d;
                    }
                }
                return value;
            });


    This is a reference implementation. You are free to copy, modify, or
    redistribute.
*/

/*jslint evil: true, strict: false */

/*members "", "\b", "\t", "\n", "\f", "\r", "\"", JSON, "\\", apply,
    call, charCodeAt, getUTCDate, getUTCFullYear, getUTCHours,
    getUTCMinutes, getUTCMonth, getUTCSeconds, hasOwnProperty, join,
    lastIndex, length, parse, prototype, push, replace, slice, stringify,
    test, toJSON, toString, valueOf
*/


// Create a JSON object only if one does not already exist. We create the
// methods in a closure to avoid creating global variables.

if (!this.JSON) {
    this.JSON = {};
}

(function () {

    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) {
                    k = rep[i];
                    if (typeof k === 'string') {
                        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.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.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');
        };
    }
}());


//------------------------------------------------------------------------------

/*
 * Simple implementation of autocomplete
 * 
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 * 
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 * 
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

(function ($)
{
    $.fn.searchableSelect = function (options)
    {
        return this.each(function() { new $.SearchableSelect(this, options); });
    };
})(jQuery);

$.SearchableSelect = function (input, options)
{
    var defaults = {
        interval      : 500,
        url           : location.href,
        showSuggest   : null,
        updateSuggest : null,
        removeSuggest : null };
    
    var $input = $(input);
    
    var opts = $.extend(defaults, options);
    
    var show_exists   = typeof opts.showSuggest   == 'function';
    var update_exists = typeof opts.updateSuggest == 'function';
    var remove_exists = typeof opts.removeSuggest == 'function';
    
    if ( show_exists && ! update_exists ) {
        opts.updateSuggest = opts.showSuggest;
        update_exists = true;
    }
    else if ( update_exists && ! show_exists ) {
        opts.showSuggest = opts.updateSuggest;
        show_exists = true;
    }
    
    if ( ! remove_exists ) {
        opts.removeSuggest = opts.updateSuggest;
        remove_exists = update_exists;
    }
    
    var timeout_id = null, request = null, input_focused = false;
    
    function inputFocused()
    {
        input_focused = true;
        updateResults(opts.showSuggest);
    }
    
    function inputBlured()
    {
        input_focused = false;
        
        if ( request )
            request.abort();
        
        setTimeout(function () { opts.removeSuggest.call($input, null); }, 300);
    }
    
    function inputChanged()
    {
        if ( timeout_id == null)
            timeout_id = setTimeout(
                function () { updateResults(opts.updateSuggest); },
                opts.interval);
    }
    
    $input.focusin(inputFocused).focusout(inputBlured).keydown(inputChanged);
    
    function updateResults(callback)
    {
        if ( input_focused ) {
            if ( request )
                request.abort();
            
            timeout_id = null;
            
            request = $.post(
                opts.url,
                { q: $input.val() },
                function (data) {
                    request = null;
                    callback.call($input, data);
                },
                'html');
        }
    }
}