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    function feedbackModalFn(selector){

        //var feedbackModal = $('.feedback-modal');
        var feedbackModal = $(selector);
        var winH;
        var topPane;
        var feedbackModalHeight;

        // private scope
        function init()
        {
            winH                = $(window).height();
            //topPane             = $('.top-pane').height();
            topPane             = 0;
            feedbackModalHeight = winH - topPane;

            feedbackModal.height(feedbackModalHeight);
        
        }

        // private scope
        function show()
        {
            init();

            feedbackModal.animate({
                bottom: 0
            }, 600);
        }

        // private scope
        function hide()
        {

            init();

            feedbackModal.animate({
                bottom: "-" + feedbackModalHeight
            }, 600);
        }


        return {

            'init': init,
            'show': show,
            'hide': hide
        };

    }