// Copyright (c) 2010-2016 Quadralay Corporation.  All rights reserved.
//
// ePublisher 2016.1
//
// Validated with JSLint <http://www.jslint.com/>
//

/*jslint maxerr: 50, for: true, this: true */
/*global window */
/*global MutationObserver */
/*global DocumentTouch */


// Message
//

var Message = {};

Message.Determine_Origin = function (param_window) {
    'use strict';

    var result, start_prefix_minimum, start_index, end_index;

    if (param_window.location.protocol === 'file:') {
        result = '*';
    } else {
        // Ensure start index starts after protocol and host info
        //
        start_prefix_minimum = param_window.location.protocol + '//' + param_window.location.host;
        start_index = start_prefix_minimum.length;
        end_index = param_window.location.href.indexOf(param_window.location.pathname, start_index);
        result = param_window.location.href.substring(0, end_index);
    }

    return result;
};

Message.Listen = function (param_window, param_function) {
    'use strict';

    var origin, middleware;

    // Use appropriate browser method
    //
    if ((param_window.postMessage !== undefined) && (param_window.JSON !== undefined)) {
        // Wrap function to ensure security
        //
        origin = Message.Determine_Origin(param_window);
        middleware = function (param_event) {
            var accept, event, key;

            // Ensure origin matches
            //
            accept = (param_event.origin === origin);
            if (!accept) {
                if (param_window.location.protocol === 'file:') {
                    accept = (param_event.origin.indexOf('file:') === 0);
                    if (!accept) {
                        accept = (param_event.origin === 'null');
                    }
                }
            }

            // Invoke function if message acceptable
            //
            if (accept) {
                // Copy existing event
                //
                event = {};
                for (key in param_event) {
                    if (param_event[key] !== undefined) {
                        event[key] = param_event[key];
                    }
                }

                // Expand JSON data
                //
                try {
                    event.data = param_window.JSON.parse(param_event.data);
                    param_function(event);
                } catch (ignore) {
                    // Apparently, this message wasn't meant for us
                    //
                }
            }
        };

        if (param_window.addEventListener !== undefined) {
            // Via postMessage
            //
            param_window.addEventListener('message', middleware, false);
        } else if (param_window.attachEvent !== undefined) {
            // Via postMessage
            //
            param_window.attachEvent('onmessage', middleware, false);
        }
    } else {
        // Direct send
        //
        if (!param_window.POSTMESSAGE_message) {
            param_window.POSTMESSAGE_message = param_function;
        }
    }
};

Message.Post = function (param_to_window, param_data, param_from_window) {
    'use strict';

    var data, origin, event;

    // Use appropriate browser method
    //
    if ((param_from_window.postMessage !== undefined) && (param_from_window.JSON !== undefined)) {
        // Via postMessage
        //
        data = param_from_window.JSON.stringify(param_data);
        origin = Message.Determine_Origin(param_from_window);
        param_to_window.postMessage(data, origin);
    } else {
        // Direct send
        //
        if (param_to_window.POSTMESSAGE_message) {
            event = {'origin': origin, 'source': param_from_window, 'data': param_data};
            param_from_window.setTimeout(function () {
                param_to_window.POSTMESSAGE_message(event);
            }, 1);
        }
    }
};


// ExecuteWithDelay
//

function ExecuteWithDelay(param_window, param_callback, param_delay) {
    'use strict';

    var this_executewithdelay;

    this_executewithdelay = this;

    this.timeout = null;
    this.Execute = function () {
        // Pending invocation?
        //
        if (this_executewithdelay.timeout !== null) {
            // Reset timer and prepare to start over
            //
            param_window.clearTimeout(this_executewithdelay.timeout);
        }

        // Start timer
        //
        this_executewithdelay.timeout = param_window.setTimeout(this_executewithdelay.Invoke, param_delay);
    };
    this.Invoke = function () {
        try {
            // Clear timeout tracker and invoke callback
            //
            this_executewithdelay.timeout = null;
            param_callback();
        } catch (ignore) {
            // Ignore callback exceptions
            //
        }
    };
}


// Tracker
//

function Tracker(param_window, param_element, param_callback) {
    'use strict';

    var this_tracker;

    this.element = param_element;
    this.snapshot = param_element.innerHTML;
    this.snapshot_growing = false;

    this_tracker = this;
    this.Execute = function () {
        var snapshot;

        try {
            // Snapshot changed?
            //
            snapshot = this_tracker.element.innerHTML;
            if (snapshot !== this_tracker.snapshot) {
                this_tracker.snapshot = snapshot;
                this_tracker.snapshot_growing = true;
            } else {
                // Previously growing?
                //
                if (this_tracker.snapshot_growing) {
                    this_tracker.snapshot_growing = false;

                    // Invoke callback
                    //
                    try {
                        param_callback();
                    } catch (ignore) {
                        // Ignore callback exceptions
                        //
                    }
                }
            }

            // Continue
            //
            param_window.setTimeout(function () {
                this_tracker.Execute();
            }, 200);
        } catch (ignore) {
            // Element must no longer be valid
            //
        }
    };
}


// Browser
//

var Browser = {};

Browser.ScrollingSupported = function () {
    'use strict';

    var result, safari_match, mobile_match, version_match;

    // Initialize return value
    //
    result = true;

    // Older mobile browsers, such as Safari under iOS 5 and earlier
    // do not support scrolling of nested overflowed divs or iframes
    //
    // Mozilla/5.0 (iPhone; CPU iPhone OS 6_1_3 like Mac OS X) AppleWebKit/536.26 (KHTML, like Gecko) Version/6.0 Mobile/10B329 Safari/8536.25
    //
    safari_match = window.navigator.userAgent.match(/ Safari\//);
    mobile_match = window.navigator.userAgent.match(/ Mobile\//);
    version_match = window.navigator.userAgent.match(/ Version\/(\d+)\.(\d+) /);
    if ((safari_match !== null) && (mobile_match !== null) && (version_match !== null) && (parseInt(version_match[1], 10) < 6)) {
        result = false;
    }

    return result;
};

Browser.GetAJAX = function (param_window) {
    'use strict';

    var result;

    try {
        // Firefox, Opera, Safari, Chrome
        //
        result = new param_window.XMLHttpRequest();
    } catch (e1) {
        // IE
        //
        try {
            result = new param_window.ActiveXObject('Msxml2.XMLHTTP');
        } catch (e2) {
            result = new param_window.ActiveXObject('Microsoft.XMLHTTP');
        }
    }

    return result;
};

Browser.ContainsClass = function (param_className, param_class) {
    'use strict';

    var result, index;

    result = false;

    if ((param_className !== undefined) && (param_className.length > 0) && (param_class.length > 0)) {
        // Exact match?
        //
        if (param_class === param_className) {
            result = true;
        } else {
            // Contains?
            //
            index = param_className.indexOf(param_class);
            if (index >= 0) {
                if (index === 0) {
                    result = (param_className.charAt(param_class.length) === ' ');
                } else if (index === (param_className.length - param_class.length)) {
                    result = (param_className.charAt(index - 1) === ' ');
                } else {
                    result = ((param_className.charAt(index - 1) === ' ') && (param_className.charAt(index + param_class.length) === ' '));
                }
            }
        }
    }

    return result;
};

Browser.AddClass = function (param_className, param_class) {
    'use strict';

    var result;

    result = param_className;
    if (!Browser.ContainsClass(param_className, param_class)) {
        result = param_className + ' ' + param_class;
    }

    return result;
};

Browser.RemoveClass = function (param_className, param_class) {
    'use strict';

    var result, index;

    result = param_className;
    if ((param_className !== undefined) && (param_className.length > 0) && (param_class.length > 0)) {
        // Exact match?
        //
        if (param_class === param_className) {
            result = '';
        } else {
            // Contains?
            //
            index = param_className.indexOf(param_class);
            if (index >= 0) {
                if (index === 0) {
                    if (param_className.charAt(param_class.length) === ' ') {
                        result = param_className.substring(param_class.length + 1);
                    }
                } else if (index === (param_className.length - param_class.length)) {
                    if (param_className.charAt(index - 1) === ' ') {
                        result = param_className.substring(0, index - 1);
                    }
                } else {
                    if ((param_className.charAt(index - 1) === ' ') && (param_className.charAt(index + param_class.length) === ' ')) {
                        result = param_className.substring(0, index - 1) + param_className.substring(index + param_class.length);
                    }
                }
            }
        }
    }

    return result;
};

Browser.ReplaceClass = function (param_className, param_existing_class, param_new_class) {
    'use strict';

    var result;

    result = Browser.RemoveClass(param_className, param_existing_class);
    result = Browser.AddClass(result, param_new_class);

    return result;
};

Browser.SameDocument = function (param_url_1, param_url_2) {
    'use strict';

    var result, current_path, desired_path;

    result = false;

    if (param_url_1 === param_url_2) {
        // Quick and dirty check
        //
        result = true;
    } else {
        // Try more in-depth test
        //
        current_path = param_url_1;
        desired_path = param_url_2;

        // Decompose hrefs
        //
        if (current_path.indexOf('#') !== -1) {
            current_path = current_path.substring(0, current_path.indexOf('#'));
        }
        if (desired_path.indexOf('#') !== -1) {
            desired_path = desired_path.substring(0, desired_path.indexOf('#'));
        }

        // Same document?
        //
        if ((desired_path === current_path) || (decodeURIComponent(desired_path) === current_path) || (desired_path === decodeURIComponent(current_path)) || (decodeURIComponent(desired_path) === decodeURIComponent(current_path))) {
            result = true;
        }
    }

    return result;
};

Browser.SameHierarchy = function (param_base_url, param_test_url) {
    'use strict';

    var result, decoded_base_url, decoded_test_url;

    result = false;

    if (param_test_url.indexOf(param_base_url) === 0) {
        result = true;
    } else {
        decoded_base_url = decodeURIComponent(param_base_url);

        if (param_test_url.indexOf(decoded_base_url) === 0) {
            result = true;
        } else {
            decoded_test_url = decodeURIComponent(param_test_url);

            if (decoded_test_url.indexOf(param_base_url) === 0) {
                result = true;
            } else {
                if (decoded_test_url.indexOf(decoded_base_url) === 0) {
                    result = true;
                }
            }
        }
    }

    return result;
};

Browser.RelativePath = function (param_base_url, param_test_url) {
    'use strict';

    var result, decoded_base_url, decoded_test_url;

    result = '';

    if (param_test_url.indexOf(param_base_url) === 0) {
        result = param_test_url.substring(param_base_url.length);
    } else {
        decoded_base_url = decodeURIComponent(param_base_url);

        if (param_test_url.indexOf(decoded_base_url) === 0) {
            result = param_test_url.substring(decoded_base_url.length);
        } else {
            decoded_test_url = decodeURIComponent(param_test_url);

            if (decoded_test_url.indexOf(param_base_url) === 0) {
                result = decoded_test_url.substring(param_base_url.length);
            } else {
                if (decoded_test_url.indexOf(decoded_base_url) === 0) {
                    result = decoded_test_url.substring(decoded_base_url.length);
                }
            }
        }
    }

    return result;
};

Browser.ResolveURL = function (param_reference_page_url, param_url) {
    'use strict';

    var result, url_parts, resolved_url_parts, url_component;

    // Absolute URL?
    //
    if (param_url.indexOf('//') >= 0) {
        // Absolute URL
        //
        result = param_url;
    } else {
        // Relative URL
        //

        // Expand URL into components
        //
        if (param_url.indexOf('/') >= 0) {
            url_parts = param_url.split('/');
        } else {
            url_parts = [param_url];
        }
        resolved_url_parts = param_reference_page_url.split('/');
        resolved_url_parts.length = resolved_url_parts.length - 1;

        // Process URL components
        //
        while (url_parts.length > 0) {
            url_component = url_parts.shift();

            if ((url_component !== '') && (url_component !== '.')) {
                if (url_component === '..') {
                    resolved_url_parts.pop();
                } else {
                    resolved_url_parts.push(url_component);
                }
            }
        }

        // Build resolved URL
        //
        result = resolved_url_parts.join('/');
    }

    return result;
};

Browser.GetDocument = function (param_iframe_or_window) {
    'use strict';

    var result;

    try {
        // <iframe>?
        //
        result = param_iframe_or_window.contentWindow || param_iframe_or_window.contentDocument;
        if (result.document) {
            result = result.document;
        }
    } catch (e) {
        try {
            // window?
            //
            result = param_iframe_or_window.document;
        } catch (ignore) {
            // Give up!
            //
        }
    }

    try {
        if (result.location.href === undefined) {
            result = undefined;
        } else if (result.body === undefined) {
            result = undefined;
        }
    } catch (e3) {
        result = undefined;
    }

    return result;
};

Browser.GetBrowserWidthHeight = function (param_window) {
    'use strict';

    var result;

    result = {width: 0, height: 0};

    // Determine browser width/height
    //
    if ((param_window.document.documentElement !== undefined) && (param_window.document.documentElement.clientWidth !== 0)) {
        result.width = param_window.document.documentElement.clientWidth;
        result.height = param_window.document.documentElement.clientHeight;
    } else {
        result.width = param_window.document.body.clientWidth;
        result.height = param_window.document.body.clientHeight;
    }

    return result;
};

Browser.GetElementWidthHeight = function (param_element) {
    'use strict';

    var result;

    result = {width: 0, height: 0};

    // Determine content width/height
    //
    if ((param_element.scrollWidth !== undefined) && (param_element.scrollHeight !== undefined)) {
        result.width = param_element.scrollWidth;
        result.height = param_element.scrollHeight;
        if ((param_element.offsetWidth !== undefined) && (param_element.offsetHeight !== undefined)) {
            if (param_element.offsetWidth > param_element.scrollWidth) {
                result.width = param_element.offsetWidth;
            }
            if (param_element.offsetHeight > param_element.scrollHeight) {
                result.height = param_element.offsetHeight;
            }
        }
    }

    return result;
};

Browser.GetElementScrollPosition = function (param_element, param_stop_at_element) {
    'use strict';

    var result, scroll_left, scroll_top, current_element;

    scroll_left = 0;
    scroll_top = 0;
    current_element = param_element;
    while ((current_element !== null) && (current_element !== param_stop_at_element)) {
        scroll_left += current_element.offsetLeft;
        scroll_top += current_element.offsetTop;

        current_element = current_element.offsetParent;
    }

    result = {'left': scroll_left, 'top': scroll_top};

    return result;
};

Browser.GetWindowContentWidthHeight = function (param_window) {
    'use strict';

    var result, window_document, element;

    result = {width: 0, height: 0};

    // Determine iframe width/height
    //
    window_document = Browser.GetDocument(param_window);
    if (window_document !== undefined) {
        // Default width/height info
        //
        element = window_document.body;
        result.width = element.offsetWidth;
        result.height = element.offsetHeight;

        if ((window_document.documentElement !== undefined) && (window_document.documentElement.offsetWidth !== 0)) {
            // Improve upon existing width/height info
            //
            if (window.navigator.userAgent.indexOf('MSIE') === -1) {
                element = window_document.documentElement;
                if (element.offsetWidth > result.width) {
                    result.width = element.offsetWidth;
                }
                if (element.offsetHeight > result.height) {
                    result.height = element.offsetHeight;
                }
            }
        }
    }

    return result;
};

Browser.GetWindowScrollPosition = function (param_window) {
    'use strict';

    var result, reference_object;

    result = {left: 0, top: 0};

    reference_object = (param_window.document.documentElement || param_window.document.body.parentNode || param_window.document.body);
    result.left = (param_window.pageXOffset !== undefined) ? param_window.pageXOffset : reference_object.scrollLeft;
    result.top = (param_window.pageYOffset !== undefined) ? param_window.pageYOffset : reference_object.scrollTop;

    return result;
};

Browser.GetIFrameContentWidthHeight = function (param_iframe) {
    'use strict';

    var result;

    // Determine iframe width/height
    //
    result = Browser.GetWindowContentWidthHeight(param_iframe);

    return result;
};

Browser.FindParentWithTagName = function (param_element, param_tag_name) {
    'use strict';

    var result, parent_element;

    result = null;

    try {
        parent_element = param_element.parentNode;
        while ((result === null) && (parent_element !== undefined) && (parent_element !== null)) {
            // Found target element?
            //
            if (parent_element.nodeName.toLowerCase() === param_tag_name) {
                // Success!
                //
                result = parent_element;
            }

            // Advance
            //
            parent_element = parent_element.parentNode;
        }
    } catch (ignore) {
        // No luck!
        //
    }

    return result;
};

Browser.FirstChildElement = function (param_element) {
    'use strict';

    var result, child_node;

    result = null;

    if ((param_element.firstChild !== undefined) && (param_element.firstChild !== null)) {
        child_node = param_element.firstChild;
        while (child_node !== null) {
            if (child_node.nodeType === 1) {
                result = child_node;
                child_node = null;
            } else {
                child_node = Browser.NextSiblingElement(child_node);
            }
        }
    }

    return result;
};

Browser.FirstChildElementWithTagName = function (param_element, param_tag_name) {
    'use strict';

    var result, child_node;

    result = null;

    if ((param_element.firstChild !== undefined) && (param_element.firstChild !== null)) {
        child_node = param_element.firstChild;
        while (child_node !== null) {
            if ((child_node.nodeType === 1) && (child_node.nodeName.toLowerCase() === param_tag_name)) {
                result = child_node;
                child_node = null;
            } else {
                child_node = Browser.NextSiblingElement(child_node);
            }
        }
    }

    return result;
};

Browser.FirstChildElementContainingClass = function (param_element, param_class) {
    'use strict';

    var result, child_node;

    result = null;

    if ((param_element.firstChild !== undefined) && (param_element.firstChild !== null)) {
        child_node = param_element.firstChild;
        while (child_node !== null) {
            if ((child_node.nodeType === 1) && (Browser.ContainsClass(child_node.className, param_class))) {
                result = child_node;
                child_node = null;
            } else {
                child_node = Browser.NextSiblingElement(child_node);
            }
        }
    }

    return result;
};

Browser.PreviousSiblingElement = function (param_element) {
    'use strict';

    var result, current_element;

    result = null;

    current_element = param_element;
    while ((current_element.previousSibling !== undefined) && (current_element.previousSibling !== null)) {
        if (current_element.previousSibling.nodeType === 1) {
            result = current_element.previousSibling;
            break;
        }

        current_element = current_element.previousSibling;
    }

    return result;
};

Browser.NextSiblingElement = function (param_element) {
    'use strict';

    var result, current_element;

    result = null;

    current_element = param_element;
    while ((current_element.nextSibling !== undefined) && (current_element.nextSibling !== null)) {
        if (current_element.nextSibling.nodeType === 1) {
            result = current_element.nextSibling;
            break;
        }

        current_element = current_element.nextSibling;
    }

    return result;
};

Browser.PreviousSiblingElementWithTagName = function (param_element, param_tag_name) {
    'use strict';

    var result;

    result = Browser.PreviousSiblingElement(param_element);
    while ((result !== null) && (result.nodeName.toLowerCase() !== param_tag_name)) {
        result = Browser.PreviousSiblingElement(result);
    }

    return result;
};

Browser.NextSiblingElementWithTagName = function (param_element, param_tag_name) {
    'use strict';

    var result;

    result = Browser.NextSiblingElement(param_element);
    while ((result !== null) && (result.nodeName.toLowerCase() !== param_tag_name)) {
        result = Browser.NextSiblingElement(result);
    }

    return result;
};

Browser.GetAttribute = function (param_element, param_attribute_name) {
    'use strict';

    var result;

    result = null;

    // Notes on browser compatibility
    // http://help.dottoro.com/ljhutuuj.php
    //
    if (param_element.getAttribute !== undefined) {
        result = param_element.getAttribute(param_attribute_name);
    } else if (param_element.getPropertyValue !== undefined) {
        result = param_element.getPropertyValue(param_attribute_name);
    } else {
        if ((param_element[param_attribute_name] !== undefined) && (param_element[param_attribute_name] !== null)) {
            result = param_element[param_attribute_name];
        }
    }

    return result;
};

Browser.SetAttribute = function (param_element, param_attribute_name, param_value) {
    'use strict';

    // Notes on browser compatibility
    // http://help.dottoro.com/ljhutuuj.php
    //
    if (param_element.setAttribute !== undefined) {
        param_element.setAttribute(param_attribute_name, param_value);
    } else if (param_element.setProperty !== undefined) {
        param_element.setProperty(param_attribute_name, param_value);
    } else {
        param_element[param_attribute_name] = param_value;
    }
};

Browser.RemoveAttribute = function (param_element, param_attribute_name, param_empty_value) {
    'use strict';

    var attribute_value;

    // Attribute exists?
    //
    attribute_value = Browser.GetAttribute(param_element, param_attribute_name);
    if ((attribute_value !== null) && (attribute_value !== param_empty_value)) {
        // Notes on browser compatibility
        // http://help.dottoro.com/ljhutuuj.php
        //
        if (param_element.removeAttribute !== undefined) {
            param_element.removeAttribute(param_attribute_name);
        } else if (param_element.removeProperty !== undefined) {
            param_element.removeProperty(param_attribute_name);
        } else {
            param_element[param_attribute_name] = param_empty_value;
        }
    }
};

Browser.GetLinkRelHREF = function (param_document, param_rel) {
    'use strict';

    var result, link_elements, index, link_element;

    result = '';

    link_elements = param_document.getElementsByTagName('link');
    for (index = 0; index < link_elements.length; index += 1) {
        link_element = link_elements[index];
        if (link_element.rel === param_rel) {
            // HREF defined?
            //
            if (link_element.href !== undefined) {
                result = link_element.href;
            }
            break;
        }
    }

    return result;
};

Browser.ApplyToChildElementsWithTagName = function (param_element, param_tag_name, param_process) {
    'use strict';

    var elements, index, element;

    elements = param_element.getElementsByTagName(param_tag_name);
    for (index = 0; index < elements.length; index += 1) {
        element = elements[index];

        param_process(element);
    }
};

Browser.ApplyToChildElementsContainingClass = function (param_element, param_class, param_process) {
    'use strict';

    var result, child_node;

    result = null;

    if ((param_element.firstChild !== undefined) && (param_element.firstChild !== null)) {
        child_node = param_element.firstChild;
        while (child_node !== null) {
            if ((child_node.nodeType === 1) && (Browser.ContainsClass(child_node.className, param_class))) {
                param_process(child_node);
            }

            child_node = Browser.NextSiblingElement(child_node);
        }
    }

    return result;
};

Browser.TrackSubtreeChanges = function (param_window, param_element, param_callback) {
    'use strict';

    var observer, observer_config, tracker, executewithdelay;

    // Periodically track changes
    //
    observer = null;
    try {
        if (MutationObserver) {
            // Create MutationObserver
            //
            observer = new MutationObserver(param_callback);
        }
    } catch (ignore) {
        // Keep on rolling
        //
    }
    if (observer !== null) {
        // Use MutationObserver
        //
        observer_config = {
            childList: true,
            attributes: true,
            characterData: true,
            subtree: true
        };
        observer.observe(param_element, observer_config);
    } else if (param_window.navigator.userAgent.indexOf('MSIE') !== -1) {
        // Address IE short-comings
        //
        tracker = new Tracker(param_window, param_element, param_callback);
        param_window.setTimeout(tracker.Execute, 1);
    } else {
        // Use legacy DOMSubtreeModified
        //
        executewithdelay = new ExecuteWithDelay(param_window, param_callback, 100);
        if (param_element.addEventListener !== undefined) {
            param_element.addEventListener('DOMSubtreeModified', executewithdelay.Execute, false);
        } else if (param_element.attachEvent !== undefined) {
            param_element.attachEvent('DOMSubtreeModified', executewithdelay.Execute);
        }
    }
};

Browser.TrackDocumentChanges = function (param_window, param_document, param_callback) {
    'use strict';

    Browser.TrackSubtreeChanges(param_window, param_document.body, param_callback);
};

Browser.ApplyToTree = function (param_element, param_recursion_filter, param_processing_filter, param_action) {
    'use strict';

    var index, child_node, queue;

    queue = [];
    for (index = 0; index < param_element.childNodes.length; index += 1) {
        child_node = param_element.childNodes[index];

        // Depth first processing
        //
        if (param_recursion_filter(child_node)) {
            // Recurse!
            //
            Browser.ApplyToTree(child_node, param_recursion_filter, param_processing_filter, param_action);
        }

        // Process?
        //
        if (param_processing_filter(child_node)) {
            // Add to queue
            //
            queue.push(child_node);
        }
    }

    // Process queue
    //
    for (index = 0; index < queue.length; index += 1) {
        child_node = queue[index];
        param_action(child_node);
    }
};

Browser.TouchEnabled = function (param_window) {
    'use strict';

    var result;

    result = (param_window.ontouchstart !== undefined);
    if (!result) {
        try {
            result = ((param_window.DocumentTouch !== undefined) && (param_window.document instanceof DocumentTouch));
        } catch (ignore) {
            // Not fatal!
            //
        }
    }

    return result;
};

Browser.DisableCSSHoverSelectors = function (param_window) {
    'use strict';

    var css_style_rule_type, hover_expression, stylesheet_index, stylesheet, css_rules_index, css_rules, css_rule, parts, filtered_parts, parts_index, part;

    try {
        // Determine style rule type
        //
        css_style_rule_type = param_window.CSSRule.STYLE_RULE;

        // Define hover expression
        //
        hover_expression = /:hover/;

        // Iterate stylesheets
        //
        for (stylesheet_index = 0; stylesheet_index < param_window.document.styleSheets.length; stylesheet_index += 1) {
            stylesheet = param_window.document.styleSheets[stylesheet_index];

            // Avoid security exceptions if stylesheet on a different server
            //
            css_rules = undefined;
            try {
                css_rules = stylesheet.cssRules;
                if (css_rules === undefined) {
                    css_rules = stylesheet.rules;
                }
                if ((css_rules === undefined) || (css_rules === null)) {
                    // Skip stylesheets that failed to load
                    //
                    continue;
                }
            } catch (skip_exception) {
                continue;
            }

            // Iterate rules
            //
            for (css_rules_index = css_rules.length - 1; css_rules_index >= 0; css_rules_index -= 1) {
                css_rule = css_rules[css_rules_index];

                // Check rule type
                //
                if (css_rule.type === css_style_rule_type) {
                    // Expand compound selectors
                    //
                    if (css_rule.selectorText.indexOf(',') !== -1) {
                        parts = css_rule.selectorText.split(',');
                    } else {
                        parts = [css_rule.selectorText];
                    }

                    // Filter individual selectors
                    //
                    filtered_parts = [];
                    for (parts_index = 0; parts_index < parts.length; parts_index += 1) {
                        part = parts[parts_index];

                        if (!hover_expression.test(part)) {
                            filtered_parts.push(part);
                        }
                    }

                    // Update rule selectors or delete
                    //
                    if (filtered_parts.length > 0) {
                        css_rule.selectorText = filtered_parts.join(',');
                    } else {
                        stylesheet.deleteRule(css_rules_index);
                    }
                }
            }
        }
    } catch (ignore) {
        // Not fatal
        //
    }
};


// Highlights
//

var Highlight = {};

Highlight.MatchExpression = function (param_expression, param_require_whitespace, param_string) {
    'use strict';

    var result, working_regexp, working_string, offset, match;

    result = [];

    // Find matches within the string in order
    //
    if (param_require_whitespace) {
        working_regexp = new RegExp('\\s' + param_expression + '\\s', 'i');
        working_string = ' ' + param_string + ' ';
    } else {
        working_regexp = new RegExp(param_expression, 'i');
        working_string = param_string;
    }
    offset = 0;
    match = working_regexp.exec(working_string);
    while (match !== null) {
        // Record location of this match
        //
        result.push([offset + match.index, match[0].length - ((param_require_whitespace) ? 2 : 0)]);

        // Advance
        //
        offset += match.index + match[0].length - ((param_require_whitespace) ? 1 : 0);
        working_regexp.lastIndex = 0;
        if (offset < working_string.length) {
            match = working_regexp.exec(working_string.substring(offset));
        } else {
            match = null;
        }
    }

    return result;
};

Highlight.MatchExpressions = function (param_expressions, param_require_whitespace, param_string) {
    'use strict';

    var result, match_locations, expression, index, alpha_locations, beta_locations, gamma_locations, start_index, alpha_location, beta_location, gamma_location;

    // Find all match locations
    //
    match_locations = [];
    for (index = 0; index < param_expressions.length; index += 1) {
        expression = param_expressions[index];

        match_locations[index] = Highlight.MatchExpression(expression, param_require_whitespace, param_string);
    }

    // Combine match locations
    //
    while (match_locations.length > 1) {
        alpha_locations = match_locations.pop();
        beta_locations = match_locations.pop();

        gamma_locations = [];
        start_index = -1;
        alpha_location = undefined;
        beta_location = undefined;
        while ((alpha_locations.length > 0) || (beta_locations.length > 0) || (alpha_location !== undefined) || (beta_location !== undefined)) {
            // Locate next location pair
            //
            while ((alpha_location === undefined) && (alpha_locations.length > 0)) {
                alpha_location = alpha_locations.shift();
                if (alpha_location[0] < start_index) {
                    alpha_location = undefined;
                }
            }
            while ((beta_location === undefined) && (beta_locations.length > 0)) {
                beta_location = beta_locations.shift();
                if (beta_location[0] < start_index) {
                    beta_location = undefined;
                }
            }

            // Pick a location
            //
            gamma_location = undefined;
            if ((alpha_location !== undefined) && (beta_location !== undefined)) {
                // Check start index
                //
                if (alpha_location[0] < beta_location[0]) {
                    // Use alpha
                    //
                    gamma_location = alpha_location;
                    alpha_location = undefined;
                } else if (alpha_location[0] > beta_location[0]) {
                    // Use beta
                    //
                    gamma_location = beta_location;
                    beta_location = undefined;
                } else {
                    // Check lengths (longer match wins)
                    //
                    if (alpha_location[1] > beta_location[1]) {
                        // Use alpha
                        //
                        gamma_location = alpha_location;
                        alpha_location = undefined;
                    } else if (alpha_location[1] < beta_location[1]) {
                        // Use beta
                        //
                        gamma_location = beta_location;
                        beta_location = undefined;
                    } else {
                        // Same location
                        //
                        gamma_location = alpha_location;
                        alpha_location = undefined;
                        beta_location = undefined;
                    }
                }
            } else {
                // Use the one that exists
                //
                if (alpha_location !== undefined) {
                    // Use alpha
                    //
                    gamma_location = alpha_location;
                    alpha_location = undefined;
                } else {
                    // Use beta
                    //
                    gamma_location = beta_location;
                    beta_location = undefined;
                }
            }

            // Track selected location
            //
            if (gamma_location !== undefined) {
                gamma_locations.push(gamma_location);
                start_index = gamma_location[0] + gamma_location[1];
            }
        }

        match_locations.push(gamma_locations);
    }

    result = match_locations[0];

    return result;
};

Highlight.TreeRecusionFilter = function (param_node) {
    'use strict';

    var result = false;

    // Recurse on content elements
    //
    if ((param_node.nodeType === 1) && (param_node.nodeName.toLowerCase() !== 'header') && (param_node.nodeName.toLowerCase() !== 'footer')) {
        result = true;
    }

    return result;
};

Highlight.TreeProcessTextNodesFilter = function (param_node) {
    'use strict';

    var result = false;

    // Keep text nodes
    //
    if (param_node.nodeType === 3) {
        result = true;
    }

    return result;
};

Highlight.TreeProcessHighlightSpansFilter = function (param_css_class, param_node) {
    'use strict';

    var result = false;

    // Find highlight spans
    //
    if ((param_node.nodeType === 1) && (param_node.nodeName.toLowerCase() === 'span') && (param_node.className === param_css_class)) {
        result = true;
    }

    return result;
};

Highlight.Apply = function (param_document, param_css_class, param_expressions, param_require_whitespace, param_node) {
    'use strict';

    var locations, result, location, highlight_node, span_element;

    locations = Highlight.MatchExpressions(param_expressions, param_require_whitespace, param_node.nodeValue);
    result = (locations.length > 0);
    while (locations.length > 0) {
        location = locations.pop();

        if ((location[0] + location[1]) < param_node.nodeValue.length) {
            param_node.splitText(location[0] + location[1]);
        }
        highlight_node = param_node.splitText(location[0]);
        span_element = param_document.createElement('span');
        span_element.className = param_css_class;
        param_node.parentNode.insertBefore(span_element, highlight_node);
        span_element.appendChild(highlight_node);
    }

    return result;
};

Highlight.Remove = function (param_document, param_node) {
    'use strict';

    var parent, previous, next, text, text_node;

    // Remove highlights
    //
    parent = param_node.parentNode;
    previous = param_node.previousSibling;
    next = param_node.nextSibling;
    text = '';
    if ((previous !== null) && (previous.nodeType === 3)) {
        text += previous.nodeValue;
        parent.removeChild(previous);
    }
    if ((param_node.childNodes.length > 0) && (param_node.childNodes[0].nodeType === 3)) {
        text += param_node.childNodes[0].nodeValue;
    }
    if ((next !== null) && (next.nodeType === 3)) {
        text += next.nodeValue;
        parent.removeChild(next);
    }
    text_node = param_document.createTextNode(text);
    parent.insertBefore(text_node, param_node);
    parent.removeChild(param_node);
};

Highlight.ApplyToDocument = function (param_document, param_css_class, param_expressions, param_require_whitespace, param_handle_highlight) {
    'use strict';

    Browser.ApplyToTree(param_document.body, Highlight.TreeRecusionFilter,
        Highlight.TreeProcessTextNodesFilter,
        function (param_node) {
            var applied;

            applied = Highlight.Apply(param_document, param_css_class, param_expressions, param_require_whitespace, param_node);
            if ((applied) && (param_handle_highlight !== undefined)) {
                param_handle_highlight(param_node.parentNode);
            }
        });
};

Highlight.RemoveFromDocument = function (param_document, param_css_class) {
    'use strict';

    // Remove highlights
    //
    Browser.ApplyToTree(param_document.body, Highlight.TreeRecusionFilter,
        function (param_node) {
            var result;

            result = Highlight.TreeProcessHighlightSpansFilter(param_css_class, param_node);

            return result;
        },
        function (param_node) {
            Highlight.Remove(param_document, param_node);
        });
};


// File AJAX
//

var FAJAX = {};

FAJAX.Open = function (method, url, async) {
    'use strict';

    this.url = url;
};

FAJAX.Send = function (param_data) {
    'use strict';

    // Need to inject iframe via innerHTML to support IE 7
    //
    this.iframe_container = this.window.document.createElement('div');
    this.iframe_container.id = 'fajax_iframe_container';
    this.iframe_container.fajax = this;
    this.iframe_container.style.visibility = 'hidden';
    this.window.document.body.appendChild(this.iframe_container);
    this.iframe_container.innerHTML = '<iframe src="' + this.url + '" onload="FAJAX.OnLoad(window.document);"></iframe>';
};

FAJAX.OnLoad = function (param_document) {
    'use strict';

    var iframe_container;

    iframe_container = param_document.getElementById('fajax_iframe_container');
    iframe_container.fajax.HandleLoad();
};

FAJAX.HandleLoad = function () {
    'use strict';

    var iframe, iframe_document, data;

    // Access iframe's content directly
    //
    try {
        iframe = this.iframe_container.getElementsByTagName('iframe')[0];
        iframe_document = Browser.GetDocument(iframe);
        data = iframe_document.body.innerHTML;
    } catch (ignore) {
        // No luck!
        //
    }

    // Try session storage
    //
    if (data === null || data === undefined || data === '') {
        if (this.window.Storage !== undefined) {
            data = this.window.sessionStorage['WebWorks_Connect_Data'];
            delete this.window.sessionStorage['WebWorks_Connect_Data'];
        }
    }

    this.window.document.body.removeChild(this.iframe_container);

    if (data !== null && data !== undefined) {
        this.readyState = 4;
        this.status = 200;
        this.responseText = data;
        this.onreadystatechange();
    } else {
        this.readyState = 4;
        this.status = 404;
        this.responseText = '';
        this.onreadystatechange();
    }
};

FAJAX.Object = function (param_window) {
    'use strict';

    this.window = param_window;
    this.readyState = 1;
    this.status = 404;
    this.responseText = '';
    this.iframe = undefined;
    this.url = '';

    this.open = FAJAX.Open;
    this.send = FAJAX.Send;
    this.HandleLoad = FAJAX.HandleLoad;
};


// Parcels
//

var Parcels = {};

Parcels.KnownParcelURL = function (param_parcel_prefixes, param_url) {
    'use strict';

    var result, parcel_base_url;

    result = false;

    for (parcel_base_url in param_parcel_prefixes) {
        if (typeof param_parcel_prefixes[parcel_base_url] === 'boolean') {
            if (Browser.SameHierarchy(parcel_base_url, param_url)) {
                result = true;
                break;
            }
        }
    }

    return result;
};

Parcels.KnownParcelBaggageURL = function (param_parcel_prefixes, param_url) {
    'use strict';

    var result, parcel_base_url, baggage_url;

    result = false;

    for (parcel_base_url in param_parcel_prefixes) {
        if (typeof param_parcel_prefixes[parcel_base_url] === 'boolean') {
            if (Browser.SameHierarchy(parcel_base_url, param_url)) {
                baggage_url = parcel_base_url + '/baggage/';
                result = Browser.SameHierarchy(baggage_url, param_url);
                break;
            }
        }
    }

    return result;
};


// Progress
//

function Progress_Reset() {
    'use strict';

    var progress_bar_div;

    // Reset progress
    //
    this.progress = 0;

    // Indicate indeterminate progress
    //
    progress_bar_div = Browser.FirstChildElementContainingClass(this.progress_div, 'ww_skin_progress_bar');
    if (progress_bar_div !== null) {
        progress_bar_div.className = Browser.AddClass(progress_bar_div.className, 'ww_skin_progress_indeterminate');

        // Reset segments
        //
        Browser.ApplyToChildElementsContainingClass(progress_bar_div, 'ww_skin_progress_segment', function (param_element) {
            param_element.className = Browser.ReplaceClass(param_element.className, 'ww_skin_progress_segment_complete', 'ww_skin_progress_segment_pending');
        });
    }
}

function Progress_Update(param_progress) {
    'use strict';

    var progress_goal, progress_bar_div, started, this_reference, current_progress;

    // Validate progress goal
    //
    progress_goal = param_progress;
    if (progress_goal > 100) {
        progress_goal = 100;
    } else if (progress_goal < 0) {
        progress_goal = 0;
    }

    // Update necessary?
    //
    if (progress_goal > this.progress) {
        // Locate progress bar
        //
        progress_bar_div = Browser.FirstChildElementContainingClass(this.progress_div, 'ww_skin_progress_bar');
        if (progress_bar_div !== null) {
            // Started progress?
            //
            started = (this.progress === 0);

            // Update progress
            //
            while ((this.progress + 10) <= progress_goal) {
                this.progress += 10;
            }

            if (this.progress > 0) {
                // Started progress updates?
                //
                if (started) {
                    // Remove indeterminate progress indicator
                    //
                    progress_bar_div.className = Browser.RemoveClass(progress_bar_div.className, 'ww_skin_progress_indeterminate');
                }

                // Mark progress
                //
                current_progress = 0;
                this_reference = this;
                Browser.ApplyToChildElementsContainingClass(progress_bar_div, 'ww_skin_progress_segment', function (param_element) {
                    // Count segments
                    //
                    current_progress += 10;
                    if (current_progress <= this_reference.progress) {
                        param_element.className = Browser.ReplaceClass(param_element.className, 'ww_skin_progress_segment_pending', 'ww_skin_progress_segment_complete');
                    }
                });
            }
        }
    }
}

function Progress_Complete() {
    'use strict';

    this.Hide();
}

function Progress_Done() {
    'use strict';

    return (this.progress === 100);
}

function Progress_Show() {
    'use strict';

    this.progress_div.style.display = 'block';
}

function Progress_Hide() {
    'use strict';

    this.progress_div.style.display = 'none';
}

function Progress_Object(param_progress_div) {
    'use strict';

    this.progress = 0;
    this.progress_div = param_progress_div;

    this.Reset = Progress_Reset;
    this.Update = Progress_Update;
    this.Complete = Progress_Complete;
    this.Done = Progress_Done;
    this.Show = Progress_Show;
    this.Hide = Progress_Hide;
}