Gongos jQuery plugins

gongos-jquery-ext.js

// Have a checkall and checkone in the same page
(function ($) {
    jQuery.fn.onePageCheckallCheckone = function (options) {

        // Default settings
        var settings = $.extend({
            'firstQuestion': '',
            'secondQuestion': '',
            'isLastExclusive': false
        }, options);

        if (!settings.firstQuestion) return this;

        // Re-calculate background of rows
        var alternateRowColor = function () {
            var secondQSelectedRows = $('.ShownRow');
            secondQSelectedRows.each(function (index) {
                var tds = $(this).children('td[id]');
                if (index % 2 === 0) {
                    $(tds[0]).removeClass('NormalCell').addClass('AlternateCell');
                    $(tds[1]).removeClass('NormalCell').addClass('AlternateCell');
                } else {
                    $(tds[0]).removeClass('AlternateCell').addClass('NormalCell');
                    $(tds[1]).removeClass('AlternateCell').addClass('NormalCell');
                }
            });
        };

        // Second question text
        var secondQText = $('#' + settings.secondQuestion + 'Text');
        // Second question rows of choices
        var secondQRows = $('td[id^="CellOption_' + settings.secondQuestion + '"]').parent();
        // Hide second question
        secondQText.hide();
        secondQRows.hide();

        // Get choices that should be shown when the page loads (for postback)
        var firstQChoicesSelected = $('td[class*="SelectedCell"][id*="CellOption_' + settings.firstQuestion + '_"]');
        if ($(firstQChoicesSelected).length >= 1) {
            secondQText.show();
            firstQChoicesSelected.each(function (index) {
                var id = $(this)[0].id;
                var qNum = id.substr(id.lastIndexOf("_") + 1);
                $(secondQRows[qNum - 1]).addClass('ShownRow').show();
            });
            alternateRowColor();
        }

        // When a choice is clicked in first question...
        $('td[id*="_' + settings.firstQuestion + '_"]').click(function () {
            // Count of selected choices in first question
            var firstQSelectedCount = $('td[class*="SelectedCell"][id*="_' + settings.firstQuestion + '_"]').parent().length;
            // Is row selected in previous question?
            var isSelected = $(this).hasClass('SelectedCell');
            // Get the clicked element index
            var id = $(this)[0].id;
            var index = parseInt(id.substr(id.lastIndexOf("_") + 1));

            // If last index of previous question is exclusive (Generally 'None')
            var firstQChoicesNum = $('td[id^="CellOption_' + settings.firstQuestion + '"]').length;
            if (settings.isLastExclusive && index === firstQChoicesNum) {
                secondQText.fadeOut();
                secondQRows.removeClass('ShownRow').fadeOut();
            } else {
                // Show or remove clicked row
                if (isSelected) {
                    $(secondQRows[index - 1]).addClass('ShownRow').fadeIn();
                } else {
                    $(secondQRows[index - 1]).removeClass('ShownRow').fadeOut();
                }

                // Show or remove question text
                if (firstQSelectedCount === 1) {
                    secondQText.fadeIn();
                }
                if (firstQSelectedCount === 0) {
                    secondQText.fadeOut();
                }
            }

            // Re-do background of rows
            alternateRowColor();
        });

        return this;
    };
})(jQuery);