var b1dis = "<a href=\"";
var bdis = "\"><img src=\"";
var edis = " width=\"211\" height=\"110\" border=\"0\"></a>";
var rnumb = "";
var img = "";
// number at the end of this formula below is the number of images
rnumb += Math.floor(Math.random()*2);
img = rnumb;

if (img == "0") {
document.write(b1dis+ "vetting.jsp" +bdis+ "images/account_thumbnail.jpg\"" +edis);
}

if (img == "1") {
document.write(b1dis+ "consulting.jsp" +bdis+ "images/consulting_thumbnail.jpg\"" +edis);
}