var imagenumber = 2 ;
var randomnumber = Math.random() ;
var rand1 = Math.round( (imagenumber-1) * randomnumber) + 1 ;
images = new Array
images[1] = "http://blog8.persiangig.ir/temp/ads/images/flash/irobay120-240.swf"
images[2] = "http://blog8.persiangig.ir/temp/ads/images/flash/irobay120-240.swf"
var image = images[rand1]