Subversion-Projekte lars-tiefland.webanos.faltradxxs.de

/*!

 * jQuery Steps v1.1.0 - 09/04/2014

 * Copyright (c) 2014 Rafael Staib (http://www.jquery-steps.com)

 * Licensed under MIT http://www.opensource.org/licenses/MIT

 */

;(function ($, undefined)

{

$.fn.extend({

    _aria: function (name, value)

    {

        return this.attr("aria-" + name, value);

    },

    _removeAria: function (name)

    {

        return this.removeAttr("aria-" + name);

    },

    _enableAria: function (enable)

    {

        return (enable == null || enable) ?

            this.removeClass("disabled")._aria("disabled", "false") :

            this.addClass("disabled")._aria("disabled", "true");

    },

    _showAria: function (show)

    {

        return (show == null || show) ?

            this.show()._aria("hidden", "false") :

            this.hide()._aria("hidden", "true");

    },

    _selectAria: function (select)

    {

        return (select == null || select) ?

            this.addClass("current")._aria("selected", "true") :

            this.removeClass("current")._aria("selected", "false");

    },

    _id: function (id)

    {

        return (id) ? this.attr("id", id) : this.attr("id");

    }

});

if (!String.prototype.format)

{

    String.prototype.format = function()

    {

        var args = (arguments.length === 1 && $.isArray(arguments[0])) ? arguments[0] : arguments;

        var formattedString = this;

        for (var i = 0; i < args.length; i++)

        {

            var pattern = new RegExp("\\{" + i + "\\}", "gm");

            formattedString = formattedString.replace(pattern, args[i]);

        }

        return formattedString;

    };

}

/**

 * A global unique id count.

 *

 * @static

 * @private

 * @property _uniqueId

 * @type Integer

 **/

var _uniqueId = 0;

/**

 * The plugin prefix for cookies.

 *

 * @final

 * @private

 * @property _cookiePrefix

 * @type String

 **/

var _cookiePrefix = "jQu3ry_5teps_St@te_";

/**

 * Suffix for the unique tab id.

 *

 * @final

 * @private

 * @property _tabSuffix

 * @type String

 * @since 0.9.7

 **/

var _tabSuffix = "-t-";

/**

 * Suffix for the unique tabpanel id.

 *

 * @final

 * @private

 * @property _tabpanelSuffix

 * @type String

 * @since 0.9.7

 **/

var _tabpanelSuffix = "-p-";

/**

 * Suffix for the unique title id.

 *

 * @final

 * @private

 * @property _titleSuffix

 * @type String

 * @since 0.9.7

 **/

var _titleSuffix = "-h-";

/**

 * An error message for an "index out of range" error.

 *

 * @final

 * @private

 * @property _indexOutOfRangeErrorMessage

 * @type String

 **/

var _indexOutOfRangeErrorMessage = "Index out of range.";

/**

 * An error message for an "missing corresponding element" error.

 *

 * @final

 * @private

 * @property _missingCorrespondingElementErrorMessage

 * @type String

 **/

var _missingCorrespondingElementErrorMessage = "One or more corresponding step {0} are missing.";

/**

 * Adds a step to the cache.

 *

 * @static

 * @private

 * @method addStepToCache

 * @param wizard {Object} A jQuery wizard object

 * @param step {Object} The step object to add

 **/

function addStepToCache(wizard, step)

{

    getSteps(wizard).push(step);

}

function analyzeData(wizard, options, state)

{

    var stepTitles = wizard.children(options.headerTag),

        stepContents = wizard.children(options.bodyTag);

    // Validate content

    if (stepTitles.length > stepContents.length)

    {

        throwError(_missingCorrespondingElementErrorMessage, "contents");

    }

    else if (stepTitles.length < stepContents.length)

    {

        throwError(_missingCorrespondingElementErrorMessage, "titles");

    }

    var startIndex = options.startIndex;

    state.stepCount = stepTitles.length;

    // Tries to load the saved state (step position)

    if (options.saveState && $.cookie)

    {

        var savedState = $.cookie(_cookiePrefix + getUniqueId(wizard));

        // Sets the saved position to the start index if not undefined or out of range

        var savedIndex = parseInt(savedState, 0);

        if (!isNaN(savedIndex) && savedIndex < state.stepCount)

        {

            startIndex = savedIndex;

        }

    }

    state.currentIndex = startIndex;

    stepTitles.each(function (index)

    {

        var item = $(this), // item == header

            content = stepContents.eq(index),

            modeData = content.data("mode"),

            mode = (modeData == null) ? contentMode.html : getValidEnumValue(contentMode,

                (/^\s*$/.test(modeData) || isNaN(modeData)) ? modeData : parseInt(modeData, 0)),

            contentUrl = (mode === contentMode.html || content.data("url") === undefined) ?

                "" : content.data("url"),

            contentLoaded = (mode !== contentMode.html && content.data("loaded") === "1"),

            step = $.extend({}, stepModel, {

                title: item.html(),

                content: (mode === contentMode.html) ? content.html() : "",

                contentUrl: contentUrl,

                contentMode: mode,

                contentLoaded: contentLoaded

            });

        addStepToCache(wizard, step);

    });

}

/**

 * Triggers the onCanceled event.

 *

 * @static

 * @private

 * @method cancel

 * @param wizard {Object} The jQuery wizard object

 **/

function cancel(wizard)

{

    wizard.triggerHandler("canceled");

}

function decreaseCurrentIndexBy(state, decreaseBy)

{

    return state.currentIndex - decreaseBy;

}

/**

 * Removes the control functionality completely and transforms the current state to the initial HTML structure.

 *

 * @static

 * @private

 * @method destroy

 * @param wizard {Object} A jQuery wizard object

 **/

function destroy(wizard, options)

{

    var eventNamespace = getEventNamespace(wizard);

    // Remove virtual data objects from the wizard

    wizard.unbind(eventNamespace).removeData("uid").removeData("options")

        .removeData("state").removeData("steps").removeData("eventNamespace")

        .find(".actions a").unbind(eventNamespace);

    // Remove attributes and CSS classes from the wizard

    wizard.removeClass(options.clearFixCssClass + " vertical");

    var contents = wizard.find(".content > *");

    // Remove virtual data objects from panels and their titles

    contents.removeData("loaded").removeData("mode").removeData("url");

    // Remove attributes, CSS classes and reset inline styles on all panels and their titles

    contents.removeAttr("id").removeAttr("role").removeAttr("tabindex")

        .removeAttr("class").removeAttr("style")._removeAria("labelledby")

        ._removeAria("hidden");

    // Empty panels if the mode is set to 'async' or 'iframe'

    wizard.find(".content > [data-mode='async'],.content > [data-mode='iframe']").empty();

    var wizardSubstitute = $("<{0} class=\"{1}\"></{0}>".format(wizard.get(0).tagName, wizard.attr("class")));

    var wizardId = wizard._id();

    if (wizardId != null && wizardId !== "")

    {

        wizardSubstitute._id(wizardId);

    }

    wizardSubstitute.html(wizard.find(".content").html());

    wizard.after(wizardSubstitute);

    wizard.remove();

    return wizardSubstitute;

}

/**

 * Triggers the onFinishing and onFinished event.

 *

 * @static

 * @private

 * @method finishStep

 * @param wizard {Object} The jQuery wizard object

 * @param state {Object} The state container of the current wizard

 **/

function finishStep(wizard, state)

{

    var currentStep = wizard.find(".steps li").eq(state.currentIndex);

    if (wizard.triggerHandler("finishing", [state.currentIndex]))

    {

        currentStep.addClass("done").removeClass("error");

        wizard.triggerHandler("finished", [state.currentIndex]);

    }

    else

    {

        currentStep.addClass("error");

    }

}

/**

 * Gets or creates if not exist an unique event namespace for the given wizard instance.

 *

 * @static

 * @private

 * @method getEventNamespace

 * @param wizard {Object} A jQuery wizard object

 * @return {String} Returns the unique event namespace for the given wizard

 */

function getEventNamespace(wizard)

{

    var eventNamespace = wizard.data("eventNamespace");

    if (eventNamespace == null)

    {

        eventNamespace = "." + getUniqueId(wizard);

        wizard.data("eventNamespace", eventNamespace);

    }

    return eventNamespace;

}

function getStepAnchor(wizard, index)

{

    var uniqueId = getUniqueId(wizard);

    return wizard.find("#" + uniqueId + _tabSuffix + index);

}

function getStepPanel(wizard, index)

{

    var uniqueId = getUniqueId(wizard);

    return wizard.find("#" + uniqueId + _tabpanelSuffix + index);

}

function getStepTitle(wizard, index)

{

    var uniqueId = getUniqueId(wizard);

    return wizard.find("#" + uniqueId + _titleSuffix + index);

}

function getOptions(wizard)

{

    return wizard.data("options");

}

function getState(wizard)

{

    return wizard.data("state");

}

function getSteps(wizard)

{

    return wizard.data("steps");

}

/**

 * Gets a specific step object by index.

 *

 * @static

 * @private

 * @method getStep

 * @param index {Integer} An integer that belongs to the position of a step

 * @return {Object} A specific step object

 **/

function getStep(wizard, index)

{

    var steps = getSteps(wizard);

    if (index < 0 || index >= steps.length)

    {

        throwError(_indexOutOfRangeErrorMessage);

    }

    return steps[index];

}

/**

 * Gets or creates if not exist an unique id from the given wizard instance.

 *

 * @static

 * @private

 * @method getUniqueId

 * @param wizard {Object} A jQuery wizard object

 * @return {String} Returns the unique id for the given wizard

 */

function getUniqueId(wizard)

{

    var uniqueId = wizard.data("uid");

    if (uniqueId == null)

    {

        uniqueId = wizard._id();

        if (uniqueId == null)

        {

            uniqueId = "steps-uid-".concat(_uniqueId);

            wizard._id(uniqueId);

        }

        _uniqueId++;

        wizard.data("uid", uniqueId);

    }

    return uniqueId;

}

/**

 * Gets a valid enum value by checking a specific enum key or value.

 *

 * @static

 * @private

 * @method getValidEnumValue

 * @param enumType {Object} Type of enum

 * @param keyOrValue {Object} Key as `String` or value as `Integer` to check for

 */

function getValidEnumValue(enumType, keyOrValue)

{

    validateArgument("enumType", enumType);

    validateArgument("keyOrValue", keyOrValue);

    // Is key

    if (typeof keyOrValue === "string")

    {

        var value = enumType[keyOrValue];

        if (value === undefined)

        {

            throwError("The enum key '{0}' does not exist.", keyOrValue);

        }

        return value;

    }

    // Is value

    else if (typeof keyOrValue === "number")

    {

        for (var key in enumType)

        {

            if (enumType[key] === keyOrValue)

            {

                return keyOrValue;

            }

        }

        throwError("Invalid enum value '{0}'.", keyOrValue);

    }

    // Type is not supported

    else

    {

        throwError("Invalid key or value type.");

    }

}

/**

 * Routes to the next step.

 *

 * @static

 * @private

 * @method goToNextStep

 * @param wizard {Object} The jQuery wizard object

 * @param options {Object} Settings of the current wizard

 * @param state {Object} The state container of the current wizard

 * @return {Boolean} Indicates whether the action executed

 **/

function goToNextStep(wizard, options, state)

{

    return paginationClick(wizard, options, state, increaseCurrentIndexBy(state, 1));

}

/**

 * Routes to the previous step.

 *

 * @static

 * @private

 * @method goToPreviousStep

 * @param wizard {Object} The jQuery wizard object

 * @param options {Object} Settings of the current wizard

 * @param state {Object} The state container of the current wizard

 * @return {Boolean} Indicates whether the action executed

 **/

function goToPreviousStep(wizard, options, state)

{

    return paginationClick(wizard, options, state, decreaseCurrentIndexBy(state, 1));

}

/**

 * Routes to a specific step by a given index.

 *

 * @static

 * @private

 * @method goToStep

 * @param wizard {Object} The jQuery wizard object

 * @param options {Object} Settings of the current wizard

 * @param state {Object} The state container of the current wizard

 * @param index {Integer} The position (zero-based) to route to

 * @return {Boolean} Indicates whether the action succeeded or failed

 **/

function goToStep(wizard, options, state, index)

{

    if (index < 0 || index >= state.stepCount)

    {

        throwError(_indexOutOfRangeErrorMessage);

    }

    if (options.forceMoveForward && index < state.currentIndex)

    {

        return;

    }

    var oldIndex = state.currentIndex;

    if (wizard.triggerHandler("stepChanging", [state.currentIndex, index]))

    {

        // Save new state

        state.currentIndex = index;

        saveCurrentStateToCookie(wizard, options, state);

        // Change visualisation

        refreshStepNavigation(wizard, options, state, oldIndex);

        refreshPagination(wizard, options, state);

        loadAsyncContent(wizard, options, state);

        startTransitionEffect(wizard, options, state, index, oldIndex, function()

        {

            wizard.triggerHandler("stepChanged", [index, oldIndex]);

        });

    }

    else

    {

        wizard.find(".steps li").eq(oldIndex).addClass("error");

    }

    return true;

}

function increaseCurrentIndexBy(state, increaseBy)

{

    return state.currentIndex + increaseBy;

}

/**

 * Initializes the component.

 *

 * @static

 * @private

 * @method initialize

 * @param options {Object} The component settings

 **/

function initialize(options)

{

    /*jshint -W040 */

    var opts = $.extend(true, {}, defaults, options);

    return this.each(function ()

    {

        var wizard = $(this);

        var state = {

            currentIndex: opts.startIndex,

            currentStep: null,

            stepCount: 0,

            transitionElement: null

        };

        // Create data container

        wizard.data("options", opts);

        wizard.data("state", state);

        wizard.data("steps", []);

        analyzeData(wizard, opts, state);

        render(wizard, opts, state);

        registerEvents(wizard, opts);

        // Trigger focus

        if (opts.autoFocus && _uniqueId === 0)

        {

            getStepAnchor(wizard, opts.startIndex).focus();

        }

        wizard.triggerHandler("init", [opts.startIndex]);

    });

}

/**

 * Inserts a new step to a specific position.

 *

 * @static

 * @private

 * @method insertStep

 * @param wizard {Object} The jQuery wizard object

 * @param options {Object} Settings of the current wizard

 * @param state {Object} The state container of the current wizard

 * @param index {Integer} The position (zero-based) to add

 * @param step {Object} The step object to add

 * @example

 *     $("#wizard").steps().insert(0, {

 *         title: "Title",

 *         content: "", // optional

 *         contentMode: "async", // optional

 *         contentUrl: "/Content/Step/1" // optional

 *     });

 * @chainable

 **/

function insertStep(wizard, options, state, index, step)

{

    if (index < 0 || index > state.stepCount)

    {

        throwError(_indexOutOfRangeErrorMessage);

    }

    // TODO: Validate step object

    // Change data

    step = $.extend({}, stepModel, step);

    insertStepToCache(wizard, index, step);

    if (state.currentIndex !== state.stepCount && state.currentIndex >= index)

    {

        state.currentIndex++;

        saveCurrentStateToCookie(wizard, options, state);

    }

    state.stepCount++;

    var contentContainer = wizard.find(".content"),

        header = $("<{0}>{1}</{0}>".format(options.headerTag, step.title)),

        body = $("<{0}></{0}>".format(options.bodyTag));

    if (step.contentMode == null || step.contentMode === contentMode.html)

    {

        body.html(step.content);

    }

    if (index === 0)

    {

        contentContainer.prepend(body).prepend(header);

    }

    else

    {

        getStepPanel(wizard, (index - 1)).after(body).after(header);

    }

    renderBody(wizard, state, body, index);

    renderTitle(wizard, options, state, header, index);

    refreshSteps(wizard, options, state, index);

    if (index === state.currentIndex)

    {

        refreshStepNavigation(wizard, options, state);

    }

    refreshPagination(wizard, options, state);

    return wizard;

}

/**

 * Inserts a step object to the cache at a specific position.

 *

 * @static

 * @private

 * @method insertStepToCache

 * @param wizard {Object} A jQuery wizard object

 * @param index {Integer} The position (zero-based) to add

 * @param step {Object} The step object to add

 **/

function insertStepToCache(wizard, index, step)

{

    getSteps(wizard).splice(index, 0, step);

}

/**

 * Handles the keyup DOM event for pagination.

 *

 * @static

 * @private

 * @event keyup

 * @param event {Object} An event object

 */

function keyUpHandler(event)

{

    var wizard = $(this),

        options = getOptions(wizard),

        state = getState(wizard);

    if (options.suppressPaginationOnFocus && wizard.find(":focus").is(":input"))

    {

        event.preventDefault();

        return false;

    }

    var keyCodes = { left: 37, right: 39 };

    if (event.keyCode === keyCodes.left)

    {

        event.preventDefault();

        goToPreviousStep(wizard, options, state);

    }

    else if (event.keyCode === keyCodes.right)

    {

        event.preventDefault();

        goToNextStep(wizard, options, state);

    }

}

/**

 * Loads and includes async content.

 *

 * @static

 * @private

 * @method loadAsyncContent

 * @param wizard {Object} A jQuery wizard object

 * @param options {Object} Settings of the current wizard

 * @param state {Object} The state container of the current wizard

 */

function loadAsyncContent(wizard, options, state)

{

    if (state.stepCount > 0)

    {

        var currentIndex = state.currentIndex,

            currentStep = getStep(wizard, currentIndex);

        if (!options.enableContentCache || !currentStep.contentLoaded)

        {

            switch (getValidEnumValue(contentMode, currentStep.contentMode))

            {

                case contentMode.iframe:

                    wizard.find(".content > .body").eq(state.currentIndex).empty()

                        .html("<iframe src=\"" + currentStep.contentUrl + "\" frameborder=\"0\" scrolling=\"no\" />")

                        .data("loaded", "1");

                    break;

                case contentMode.async:

                    var currentStepContent = getStepPanel(wizard, currentIndex)._aria("busy", "true")

                        .empty().append(renderTemplate(options.loadingTemplate, { text: options.labels.loading }));

                    $.ajax({ url: currentStep.contentUrl, cache: false }).done(function (data)

                    {

                        currentStepContent.empty().html(data)._aria("busy", "false").data("loaded", "1");

                        wizard.triggerHandler("contentLoaded", [currentIndex]);

                    });

                    break;

            }

        }

    }

}

/**

 * Fires the action next or previous click event.

 *

 * @static

 * @private

 * @method paginationClick

 * @param wizard {Object} The jQuery wizard object

 * @param options {Object} Settings of the current wizard

 * @param state {Object} The state container of the current wizard

 * @param index {Integer} The position (zero-based) to route to

 * @return {Boolean} Indicates whether the event fired successfully or not

 **/

function paginationClick(wizard, options, state, index)

{

    var oldIndex = state.currentIndex;

    if (index >= 0 && index < state.stepCount && !(options.forceMoveForward && index < state.currentIndex))

    {

        var anchor = getStepAnchor(wizard, index),

            parent = anchor.parent(),

            isDisabled = parent.hasClass("disabled");

        // Enable the step to make the anchor clickable!

        parent._enableAria();

        anchor.click();

        // An error occured

        if (oldIndex === state.currentIndex && isDisabled)

        {

            // Disable the step again if current index has not changed; prevents click action.

            parent._enableAria(false);

            return false;

        }

        return true;

    }

    return false;

}

/**

 * Fires when a pagination click happens.

 *

 * @static

 * @private

 * @event click

 * @param event {Object} An event object

 */

function paginationClickHandler(event)

{

    event.preventDefault();

    var anchor = $(this),

        wizard = anchor.parent().parent().parent().parent(),

        options = getOptions(wizard),

        state = getState(wizard),

        href = anchor.attr("href");

    switch (href.substring(href.lastIndexOf("#") + 1))

    {

        case "cancel":

            cancel(wizard);

            break;

        case "finish":

            finishStep(wizard, state);

            break;

        case "next":

            goToNextStep(wizard, options, state);

            break;

        case "previous":

            goToPreviousStep(wizard, options, state);

            break;

    }

}

/**

 * Refreshs the visualization state for the entire pagination.

 *

 * @static

 * @private

 * @method refreshPagination

 * @param wizard {Object} A jQuery wizard object

 * @param options {Object} Settings of the current wizard

 * @param state {Object} The state container of the current wizard

 */

function refreshPagination(wizard, options, state)

{

    if (options.enablePagination)

    {

        var finish = wizard.find(".actions a[href$='#finish']").parent(),

            next = wizard.find(".actions a[href$='#next']").parent();

        if (!options.forceMoveForward)

        {

            var previous = wizard.find(".actions a[href$='#previous']").parent();

            previous._enableAria(state.currentIndex > 0);

        }

        if (options.enableFinishButton && options.showFinishButtonAlways)

        {

            finish._enableAria(state.stepCount > 0);

            next._enableAria(state.stepCount > 1 && state.stepCount > (state.currentIndex + 1));

        }

        else

        {

            finish._showAria(options.enableFinishButton && state.stepCount === (state.currentIndex + 1));

            next._showAria(state.stepCount === 0 || state.stepCount > (state.currentIndex + 1)).

                _enableAria(state.stepCount > (state.currentIndex + 1) || !options.enableFinishButton);

        }

    }

}

/**

 * Refreshs the visualization state for the step navigation (tabs).

 *

 * @static

 * @private

 * @method refreshStepNavigation

 * @param wizard {Object} A jQuery wizard object

 * @param options {Object} Settings of the current wizard

 * @param state {Object} The state container of the current wizard

 * @param [oldIndex] {Integer} The index of the prior step

 */

function refreshStepNavigation(wizard, options, state, oldIndex)

{

    var currentOrNewStepAnchor = getStepAnchor(wizard, state.currentIndex),

        currentInfo = $("<span class=\"current-info audible\">" + options.labels.current + " </span>"),

        stepTitles = wizard.find(".content > .title");

    if (oldIndex != null)

    {

        var oldStepAnchor = getStepAnchor(wizard, oldIndex);

        oldStepAnchor.parent().addClass("done").removeClass("error")._selectAria(false);

        stepTitles.eq(oldIndex).removeClass("current").next(".body").removeClass("current");

        currentInfo = oldStepAnchor.find(".current-info");

        currentOrNewStepAnchor.focus();

    }

    currentOrNewStepAnchor.prepend(currentInfo).parent()._selectAria().removeClass("done")._enableAria();

    stepTitles.eq(state.currentIndex).addClass("current").next(".body").addClass("current");

}

/**

 * Refreshes step buttons and their related titles beyond a certain position.

 *

 * @static

 * @private

 * @method refreshSteps

 * @param wizard {Object} A jQuery wizard object

 * @param options {Object} Settings of the current wizard

 * @param state {Object} The state container of the current wizard

 * @param index {Integer} The start point for refreshing ids

 */

function refreshSteps(wizard, options, state, index)

{

    var uniqueId = getUniqueId(wizard);

    for (var i = index; i < state.stepCount; i++)

    {

        var uniqueStepId = uniqueId + _tabSuffix + i,

            uniqueBodyId = uniqueId + _tabpanelSuffix + i,

            uniqueHeaderId = uniqueId + _titleSuffix + i,

            title = wizard.find(".title").eq(i)._id(uniqueHeaderId);

        wizard.find(".steps a").eq(i)._id(uniqueStepId)

            ._aria("controls", uniqueBodyId).attr("href", "#" + uniqueHeaderId)

            .html(renderTemplate(options.titleTemplate, { index: i + 1, title: title.html() }));

        wizard.find(".body").eq(i)._id(uniqueBodyId)

            ._aria("labelledby", uniqueHeaderId);

    }

}

function registerEvents(wizard, options)

{

    var eventNamespace = getEventNamespace(wizard);

    wizard.bind("canceled" + eventNamespace, options.onCanceled);

    wizard.bind("contentLoaded" + eventNamespace, options.onContentLoaded);

    wizard.bind("finishing" + eventNamespace, options.onFinishing);

    wizard.bind("finished" + eventNamespace, options.onFinished);

    wizard.bind("init" + eventNamespace, options.onInit);

    wizard.bind("stepChanging" + eventNamespace, options.onStepChanging);

    wizard.bind("stepChanged" + eventNamespace, options.onStepChanged);

    if (options.enableKeyNavigation)

    {

        wizard.bind("keyup" + eventNamespace, keyUpHandler);

    }

    wizard.find(".actions a").bind("click" + eventNamespace, paginationClickHandler);

}

/**

 * Removes a specific step by an given index.

 *

 * @static

 * @private

 * @method removeStep

 * @param wizard {Object} A jQuery wizard object

 * @param options {Object} Settings of the current wizard

 * @param state {Object} The state container of the current wizard

 * @param index {Integer} The position (zero-based) of the step to remove

 * @return Indecates whether the item is removed.

 **/

function removeStep(wizard, options, state, index)

{

    // Index out of range and try deleting current item will return false.

    if (index < 0 || index >= state.stepCount || state.currentIndex === index)

    {

        return false;

    }

    // Change data

    removeStepFromCache(wizard, index);

    if (state.currentIndex > index)

    {

        state.currentIndex--;

        saveCurrentStateToCookie(wizard, options, state);

    }

    state.stepCount--;

    getStepTitle(wizard, index).remove();

    getStepPanel(wizard, index).remove();

    getStepAnchor(wizard, index).parent().remove();

    // Set the "first" class to the new first step button

    if (index === 0)

    {

        wizard.find(".steps li").first().addClass("first");

    }

    // Set the "last" class to the new last step button

    if (index === state.stepCount)

    {

        wizard.find(".steps li").eq(index).addClass("last");

    }

    refreshSteps(wizard, options, state, index);

    refreshPagination(wizard, options, state);

    return true;

}

function removeStepFromCache(wizard, index)

{

    getSteps(wizard).splice(index, 1);

}

/**

 * Transforms the base html structure to a more sensible html structure.

 *

 * @static

 * @private

 * @method render

 * @param wizard {Object} A jQuery wizard object

 * @param options {Object} Settings of the current wizard

 * @param state {Object} The state container of the current wizard

 **/

function render(wizard, options, state)

{

    // Create a content wrapper and copy HTML from the intial wizard structure

    var wrapperTemplate = "<{0} class=\"{1}\">{2}</{0}>",

        orientation = getValidEnumValue(stepsOrientation, options.stepsOrientation),

        verticalCssClass = (orientation === stepsOrientation.vertical) ? " vertical" : "",

        contentWrapper = $(wrapperTemplate.format(options.contentContainerTag, "content " + options.clearFixCssClass, wizard.html())),

        stepsWrapper = $(wrapperTemplate.format(options.stepsContainerTag, "steps " + options.clearFixCssClass, "<ul role=\"tablist\"></ul>")),

        stepTitles = contentWrapper.children(options.headerTag),