App_PwxSlide = qs.createObject();
var appPwxSlide = null;
App_PwxSlide.prototype =
{
    options: null,
    form: null,

    initialize: function(options)
    {
        this.options = options;
    },

    getForm: function()
    {
        if (this.form == null) {
            var formObj = $('form#' + this.options.formId);
            if ($(formObj).size()) {
                this.form = formObj;
            } else {
                alert('Form "' + this.options.formId + '" is not found.');
            }
        }
        return this.form;
    },

    changeLinkType: function()
    {
        var linkType = $('#linkType', this.getForm()).val();
        var type = $('#type', this.getForm()).val();

        this.hide(['url', 'pageId', 'linkText'], true);

        if ('none' != linkType) {
            var elements = [];
            if ('html' == type) {
                elements.push('linkText')
            }
            if (linkType == 'url') {
                elements.push('url');
            } else if (linkType == 'cms') {
                elements.push('pageId');
            }
            this.hide(elements, false);
        }
     },

    hide: function(elements, value)
    {
        for (var i in elements) {
            if (value) {
                $('#' + elements[i] + '-label').hide();
                $('#' + elements[i] + '-element').hide();
            } else {
                $('#' + elements[i] + '-label').show();
                $('#' + elements[i] + '-element').show();
            }
        }
    }
};

function initappPwxSlide(options)
{
    appPwxSlide = new App_PwxSlide(options);
    var formObj = appPwxSlide.getForm();
    if (formObj) {
        $('#linkType', formObj).bind('change', function() { appPwxSlide.changeLinkType(); });
        appPwxSlide.changeLinkType();
    }
}