<!--
    function concertBrowserComponent() {                   
        function show(concertId) {
            openDiv('divConcertDetails' + concertId);
            document.getElementById('aConcertDetails' + concertId).href = 'javascript:concert.hide(' + concertId + ')';
            document.getElementById('aConcertDetails' + concertId).innerHTML = '« mniej';
        }
        
        function hide(concertId) {
            closeDiv('divConcertDetails' + concertId);
            document.getElementById('aConcertDetails' + concertId).href = 'javascript:concert.show(' + concertId + ')';
            document.getElementById('aConcertDetails' + concertId).innerHTML = '» więcej';
        }           
    
        this.show = show;
        this.hide = hide;
    }   
//-->