var how_many_ads = 1;
var now = new Date()
var sec = now.getSeconds()
var ad = sec % how_many_ads;
ad +=1;
if (ad==1) {
url="http://www.thestreetsnetwork.com/cgi-bin/clicks/pocketmail.cgi?url=www.pocketmail.com.au";
banner="http://www.thestreetsnetwork.com/bannerbin/pocketmail/new-1.gif";
where="_self";
}

document.write('<center><a href=\"' + url + '\" target=\"' + where + '\"><img src=\"' + banner + '\" height=60 width=468 border=0></a></center>');