function openWindow(url) {
    window.open(url, null, 
        'toolbar=no, menubar=no, scrollbars=yes, resizable=yes, location=no, directories=no, status=no, width=880, height=600, left=' +
        (screen.width - 800) / 2 + ', top=' + (screen.height - 600) / 2);
}

function blockRightClick(selector) {
    $(selector).bind('contextmenu', function(e) {
        return false;
    });
}