var imagenumber = 6 ;
var randomnumber = Math.random() ;
var rand1 = Math.round( (imagenumber-1) * randomnumber) + 1 ;
images = new Array
images[1] = "pix/random/01.jpg"
images[2] = "pix/random/02.jpg"
images[3] = "pix/random/03.jpg"
images[4] = "pix/random/15.jpg"
images[5] = "pix/random/16.jpg"
images[6] = "pix/random/17.jpg"
var image = images[rand1]