var imagenumber = 23 ;
var randomnumber = Math.random() ;
var rand1 = Math.round( (imagenumber-1) * randomnumber) + 1 ;
images = new Array
images[1] = "../image/photos/n1.jpg"
images[2] = "../image/photos/n2.jpg"
images[3] = "../image/photos/n3.jpg"
images[4] = "../image/photos/n4.jpg"
images[5] = "../image/photos/n5.jpg"
images[6] = "../image/photos/n6.jpg"
images[7] = "../image/photos/n7.jpg"
images[8] = "../image/photos/n8.jpg"
images[9] = "../image/photos/n9.jpg"
images[10] ="../image/photos/n10.jpg"
images[11] = "../image/photos/n11.jpg"
images[12] = "../image/photos/n12.jpg"
images[13] = "../image/photos/n13.jpg"
images[14] = "../image/photos/n14.jpg"
images[15] = "../image/photos/n15.jpg"
images[16] = "../image/photos/n16.jpg"
images[17] = "../image/photos/n17.jpg"
images[18] = "../image/photos/n18.jpg"
images[19] = "../image/photos/n19.jpg"
images[20] = "../image/photos/n20.jpg"
images[21] = "../image/photos/n21.jpg"
images[22] = "../image/photos/n22.jpg"
images[23] = "../image/photos/n23.jpg"
var image = images[rand1]
document.write('<IMG SRC="' + image + '">')