google.maps.event.addListener(marker, 'click', function () 
        {
            infowindow.open(map, marker);
            var parentWindow = window.parent;
            var win = null; alert('addListener');

            if (null != parentWindow && null != parentWindow.document ) {
                alert('null != parentWindow');
                var okno = parentWindow.document.getElementById("ForecastFrameId");
                alert('getElementById("ForecastFrameId")');
                if (null != okno) {
                    win = okno.contentWindow;
                    alert('win = okno.contentWindow;');
                    var placeSid = parseInt(args[3]);

                    if (null != win) {

                        var path = getAbsolutePath();
                        var fpath = 'Plot.aspx?id=' + placeSid + '&fish=';
                        var fllpath = path + fpath + document.getElementById('<%=fishGuid.ClientID%>').value;
                        alert(fllpath);
                        win.location = fllpath;
                    } else { alert('Cannot find contentWindow!'); }
                } else { alert('Cannot find ForecastFrameId!'); }
            } else { alert('Cannot find parentWindow!'); }
        });
    }