var imagenumber = 28 ;
var randomnumber = Math.random() ;
var rand1 = Math.round( (imagenumber-1) * randomnumber) + 1 ;
images = new Array
images[1] = "lcd.jpg"
images[2] = "kb.jpg"
images[3] = "hub1.jpg"
images[4] = "hub2.jpg"
images[5] = "chips.jpg"
images[6] = "space1.jpg"
images[7] = "space2.jpg"
images[8] = "canoe1.jpg"
images[9] = "canoe2.jpg"
images[10] = "roulette.jpg"
images[11] = "billiards1.jpg"
images[12] = "laptop1.jpg"
images[13] = "ladder.jpg"
images[14] = "send.jpg"
images[15] = "fray.jpg"
images[16] = "fibre.jpg"
images[17] = "golf1.jpg"
images[18] = "ball.jpg"
images[19] = "billiards2.jpg"
images[20] = "math.jpg"
images[21] = "kb2.jpg"
images[22] = "cards.jpg"
images[23] = "books.jpg"
images[24] = "wires.jpg"
images[25] = "business.jpg"
images[26] = "world.jpg"
images[27] = "golf2.jpg"
images[28] = "golf3.jpg"
var image = images[rand1]