function editPage(identifier) {
    $('#ContentSection_' + identifier).fadeOut(500);
    $('#EditSection_' + identifier).fadeIn(500);
    return false;
}

function cancelEdit(identifier) {
    $('#ContentSection_' + identifier).fadeIn(500);
    $('#EditSection_' + identifier).fadeOut(500);
    return false;
}

function showWindow(id) {
    //Get the screen height and width
    var maskHeight = $(document).height();
    var maskWidth = $(window).width();

    //Set heigth and width to mask to fill up the whole screen
    $('#mask').css({ 'width': maskWidth, 'height': maskHeight - 5, 'overflow': 'hidden' });

    //transition effect		
    $('#mask').fadeIn(200);
    $('#mask').fadeTo("fast", 0.6);

    //Get the window height and width
    var winH = $(window).height();
    var winW = $(window).width();

    //Set the popup window to center
    $(id).css('top', winH / 2 - $(id).height() / 2);
    $(id).css('left', winW / 2 - $(id).width() / 2);

    //transition effect
    $(id).fadeIn(500);
}

function hideWindow(id) {
    $('#mask').fadeOut(500);
    $(id).fadeOut(500);

}