var imagenumber = 10 ;
var randomnumber = Math.random() ;
var rand1 = Math.round( (imagenumber-1) * randomnumber) + 1 ;
images = new Array
images[1] = "/images/bilde1.jpg"
images[2] = "/images/bilde2.jpg"
images[3] = "/images/bilde3.jpg"
images[4] = "/images/bilde4.jpg"
images[5] = "/images/bilde5.jpg"
images[6] = "/images/bilde6.jpg"
images[7] = "/images/bilde7.jpg"
images[8] = "/images/bilde9.jpg"
images[9] = "/images/bilde10.jpg"
images[10] = "/images/bilde11.jpg"

var image = images[rand1]