var url = 'http://frivol.com/?wmid=6001016&c=MjN8NjAwMTAxNg==';
var banners = new Array( '88x31-004.gif' );
var r = Math.round(Math.random() * (banners.length-1));
var banner = banners[r];
document.write('<a target="_blank" href="'+url+'"><img src="'+banner+'" style="border: 0" alt="Frivol.com!" /></a>');