function bkgrnd() {} ; bg = new bkgrnd () ; n = 0 bg[n++] = "http://www.phila.gov/images/bannerA.jpg" bg[n++] = "http://www.phila.gov/images/bannerB.jpg" bg[n++] = "http://www.phila.gov/images/bannerC.jpg" bg[n++] = "http://www.phila.gov/images/bannerD.jpg" bg[n++] = "http://www.phila.gov/images/bannerE.jpg" //Just keep adding rnd = Math.floor(Math.random() * n) ; tmp = '' document.write( tmp )