//Propriedades do IFRAME
var iframelinksprops='width=149 height=320 marginwidth="0" marginheight="0" hspace="0" vspace="0" frameborder="0" scrolling="no"'

//Indique as URLs a serem mostradas dentro do IFRAME
var randomcontentlinks=new Array()
randomcontentlinks[0]="random_links/links01.html"
randomcontentlinks[1]="random_links/links02.html"
randomcontentlinks[2]="random_links/links01.html"
randomcontentlinks[3]="random_links/links02.html"
randomcontentlinks[4]="random_links/links01.html"
randomcontentlinks[5]="random_links/links03.html"
randomcontentlinks[6]="random_links/links02.html"
randomcontentlinks[7]="random_links/links03.html"

document.write('<iframe id="dynstuff2" src="'+randomcontentlinks[Math.floor(Math.random()*randomcontentlinks.length)]+'" '+iframelinksprops+'></iframe>')