var iframebits='width=470 height=80 marginwidth="0" marginheight="0" hspace="0" vspace="0" frameborder="0" scrolling="no"'

var rc=new Array()
rc[0]="adbucket/ad1.html"
rc[1]="adbucket/ad2.html"
rc[2]="adbucket/ad3.html"
rc[3]="adbucket/ad4.html"
rc[4]="adbucket/ad5.html"
rc[5]="adbucket/ad6.html"
rc[6]="adbucket/ad7.html"
rc[7]="adbucket/ad8.html"
rc[8]="adbucket/ad9.html"
rc[9]="adbucket/ad10.html"
rc[10]="adbucket/ad11.html"
document.write('<iframe id="dynstuff" src="'+rc[Math.floor(Math.random()*rc.length)]+'" '+iframebits+'></iframe>')