function Blacklight(pMessage) {
    var panelProgressBackgroundFilter = document.getElementById('panelProgressBackgroundFilter');
    if (null == panelProgressBackgroundFilter) { panelProgressBackgroundFilter = document.all['panelProgressBackgroundFilter']; }

    var panelProgressTemplateMessage = document.getElementById('panelProgressTemplateMessage');
    if (null == panelProgressTemplateMessage) { panelProgressTemplateMessage = document.all['panelProgressTemplateMessage']; }

    var panelProgressText = document.getElementById('panelProgressText');
    if (null == panelProgressText) { panelProgressText = document.all['panelProgressText']; }
    
    if (null != panelProgressBackgroundFilter && null != panelProgressTemplateMessage) {
        if (panelProgressBackgroundFilter.style.display != 'inline') {
            panelProgressBackgroundFilter.style.display = 'inline';
            panelProgressTemplateMessage.style.display = 'inline';
        } else {
            panelProgressBackgroundFilter.style.display = 'none';
            panelProgressTemplateMessage.style.display = 'none';
        }
    }
    if (null != panelProgressText) {
        panelProgressText.innerText = "";
        if (null != pMessage) {
            panelProgressText.innerText = pMessage;
        }
    }      
}