pre = "<a href='http://deck16.net/teamspeak/'><img  src='http://www.tsviewer.com/promotion/dynamic_sig/sig.php/clan160x283_";

post = "/934809.png'/></a>";

flavours = ["bfbc2",
"arma",
"halo",
"host",
"l4d",
"rs",
"swat",
"tf2",
"ut",
"wc3",
"wow"];

var i = Math.floor(Math.random()*(flavours.length));
document.write(pre + flavours[i] + post);