function showNotificationWindow(messageTitle, displayText) {
    showNotificationWindow(messageTitle, displayText, 530, 500);
}

function showMsgBox(title, urlLink, width, height) {
    var displayText = "</iframe><div id=\"divLoader\" style=\"position:absolute;\"><br /><img src='../image/loading1.gif' alt='' /> <b>Loading...</b></center></div><iframe onload='hideProgress()' frameborder=0 class='notification-frame' src='" + urlLink + "'>";
    showNotificationWindow(title, displayText, width, height);
}

function showMsgBox500(title, urlLink) {
    showMsgBox(title, urlLink, 500, 500);
}

function closeMsgBox() {
    hideNotificationWindow()
}

function reloadPage() {
    location.reload(true);
}

function hideProgress(){
        document.getElementById('divLoader').style.display = 'none';
}

function showNotificationWindow(messageTitle, displayText, width, height) {
    var notificationWindow = document.getElementById('notification-window');    
    var menuBar = document.getElementById('notification-menubar');
    var notificationDisplayText = document.getElementById('notification-display-text');

    var bottomGap = 37; // Length calculate take away some bottom gap
    bottomGap = 10;
    
    // Specific width and height
    if ((width > 0) || (height > 0)) {
        notificationWindow.style.width = width + "px";
        notificationWindow.style.height = (height - bottomGap) + "px";
    }    

    menuBar.innerHTML = messageTitle;
    notificationDisplayText.innerHTML = displayText;
    notificationWindow.style.visibility = "visible";
    grayOut(true);
    centerNotification(notificationWindow);
}

function centerNotification(object) {
    object.style.marginLeft = "-" + parseInt(object.offsetWidth / 2) + "px";
    object.style.marginTop = "-" + parseInt(object.offsetHeight / 2) + "px";
}

function hideNotificationWindow() {
    var notificationWindow = document.getElementById('notification-window');
    notificationWindow.style.visibility = "hidden";
    grayOut(false);
}


function grayOut(vis, options) {
    // Pass true to gray out screen, false to ungray
    // options are optional.  This is a JSON object with the following (optional) properties
    // opacity:0-100         // Lower number = less grayout higher = more of a blackout 
    // zindex: #             // HTML elements with a higher zindex appear on top of the gray out
    // bgcolor: (#xxxxxx)    // Standard RGB Hex color code
    // grayOut(true, {'zindex':'50', 'bgcolor':'#0000FF', 'opacity':'70'});
    // Because options is JSON opacity/zindex/bgcolor are all optional and can appear
    // in any order.  Pass only the properties you need to set.
    var options = options || {};
    var zindex = options.zindex || 50;
    var opacity = options.opacity || 50;
    var opaque = (opacity / 100);
    var bgcolor = options.bgcolor || '#000000';
    var dark = document.getElementById('darkenScreenObject');
    var tbody = document.getElementsByTagName("body")[0];
    if (!dark) {
        // The dark layer doesn't exist, it's never been created.  So we'll
        // create it here and apply some basic styles.
        // If you are getting errors in IE see: http://support.microsoft.com/default.aspx/kb/927917
        //var tbody = document.getElementsByTagName("body")[0];
        var tnode = document.createElement('div');           // Create the layer.
        tnode.style.position = 'absolute';                 // Position absolutely
        tnode.style.top = '0px';                           // In the top
        tnode.style.left = '0px';                          // Left corner of the page
        tnode.style.overflow = 'hidden';                   // Try to avoid making scroll bars            
        tnode.style.display = 'none';                      // Start out Hidden
        tnode.id = 'darkenScreenObject';                   // Name it so we can find it later
        tbody.appendChild(tnode);                            // Add it to the web page
        dark = document.getElementById('darkenScreenObject');  // Get the object.
    }
    if (vis) {
        var pageWidth = getPageWidth();
        var pageHeight = getPageHeight();
        //var pageWidth = document.body.offsetWidth;
        //var pageHeight = document.body.offsetHeight;
        //pageHeight = tbody.scrollHeight
        //"px";
        pageWidth += "px";
        pageHeight += "px";

        //alert(document.clientHeight);
        //alert(document.scrollHeight);
        
        //if (elem.clientHeight < elem.scrollHeight

        //var hasVScroll = document.body.scrollHeight > document.body.clientHeight;
        //alert(hasVScroll);

        //alert(window.innerHeight || document.documentElement.clientHeight || document.getElementsByTagName('body')[0].clientHeight);
        //var pageWidth = window.innerWidth || document.documentElement.clientWidth || document.getElementsByTagName('body')[0].clientWidth + "px";
        
        
        
//        // Calculate the page width and height 
//        if (document.body && (document.body.scrollWidth || document.body.scrollHeight)) {
//             pageWidth = document.body.scrollWidth + 'px';
//             pageHeight = document.body.scrollHeight + 'px';
//        } 
//        else if (document.body.offsetWidth) {
//             pageWidth = document.body.offsetWidth + 'px';
//            pageHeight = document.body.offsetHeight + 'px';
//        } 
        //else {
//            var pageWidth = '100%';
//            var pageHeight = '100%';
        //        }
         
        //set the shader to cover the entire page and make it visible.
        dark.style.opacity = opaque;
        dark.style.MozOpacity = opaque;
        dark.style.filter = 'alpha(opacity=' + opacity + ')';
        dark.style.zIndex = zindex;
        dark.style.backgroundColor = bgcolor;
        dark.style.width = pageWidth;
        dark.style.height = pageHeight;
        dark.style.display = 'block';
    } else {
        dark.style.display = 'none';
    }
}


function getPageHeight() {
    var myDoc = document;
    return Math.max(
        Math.max(myDoc.body.scrollHeight, myDoc.documentElement.scrollHeight),
        Math.max(myDoc.body.offsetHeight, myDoc.documentElement.offsetHeight),
        Math.max(myDoc.body.clientHeight, myDoc.documentElement.clientHeight)
    );
}

function getPageWidth() {
    var myDoc = document;
    return Math.max(
        Math.max(myDoc.body.scrollWidth, myDoc.documentElement.scrollWidth),
        Math.max(myDoc.body.offsetWidth, myDoc.documentElement.offsetWidth),
        Math.max(myDoc.body.clientWidth, myDoc.documentElement.clientWidth)
    );
}