var maxAdNo=7
var adNo
var myAd=new Array()
myAd[0]='<img src="http://999.com.my/health-net/images/1.jpg" width="338" height="248" border="1"></a>'
myAd[1]='<img src="http://999.com.my/health-net/images/2.jpg" width="338" height="248" border="1"></a>'
myAd[2]='<img src="http://999.com.my/health-net/images/3.jpg" width="338" height="248" border="1"></a>'
myAd[3]='<img src="http://999.com.my/health-net/images/4.gif" width="338" height="248" border="1"></a>'
myAd[4]='<img src="http://999.com.my/health-net/images/5.jpg" width="338" height="248" border="1"></a>'
myAd[5]='<img src="http://999.com.my/health-net/images/6.jpg" width="338" height="248" border="1"></a>'
myAd[6]='<img src="http://999.com.my/health-net/images/7.jpg" width="338" height="248" border="1"></a>'
myAd[7]='<img src="http://999.com.my/health-net/images/8.jpg" width="338" height="248" border="1"></a>'


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