var maxAdNo = 1
var adNo
var myAd = new Array()

myAd[0] = '<a href="http://bettermember.net/index.php?action=bmad"><img src="http://bettermember.net/Images/adonbm.jpg" border="0"></a>'
myAd[1] = '<a href="http://theeaglesnest.net/community/index.php?action=register;inviter=1"><img src="http://theeaglesnest.net/images/invite3.jpg"><a>'

  adNo = Math.round(Math.random() * maxAdNo)
  document.write(myAd[adNo])