var banner = new Array(13) banner[0] = '

' banner[1] = '

' banner[2] = '

' banner[3] = '

' banner[4] = '

' banner[5] = '

' banner[6] = '

' banner[7] = '

' banner[8] = '

' banner[9] = '

' banner[10] = '

' banner[11] = '

' banner[12] = '

' var a = Math.floor(Math.random() * banner.length) document.write(banner[a]);