function floatYoutube(video_id)
{
    var VIDEO_WIDTH  = 870;
    var VIDEO_HEIGHT = 472;
    var iframe = '<iframe width="' + VIDEO_WIDTH + '" height="' + VIDEO_HEIGHT + '" src="'
               + 'http://www.youtube.com/embed/' + video_id + '" '
               + 'frameborder="0" allowfullscreen></iframe>';
    
    jQuery(iframe).ready(function() {
        var left = parseInt((jQuery(window).width() - VIDEO_WIDTH) / 2);
        var top  = parseInt((jQuery(window).height() - VIDEO_HEIGHT) / 2);
        jQuery.blockUI({
            message: iframe,
            css: {
                width: VIDEO_WIDTH + 'px',
                height: VIDEO_HEIGHT + 'px',
                top: top + 'px',
                left: left + 'px',
                border: 'none'
            },
            overlayCSS: {
                cursor: 'default'
            }
        });
        
        jQuery('.blockOverlay').click(function() {
            jQuery.unblockUI();
        });
    })
    
    return false;
}