var imagenumber = 27 ;
var randomnumber = Math.random() ;
var rand1 = Math.round( (imagenumber-1) * randomnumber) + 1 ;
images = new Array
images[1] = "randomimages/b1957_comp.jpg"
images[2] = "randomimages/casA_xray.jpg"
images[3] = "randomimages/cenAjet_xray.jpg"
images[4] = "randomimages/cencluster_xray.jpg"
images[5] = "randomimages/e0102_xray.jpg"
images[6] = "randomimages/etacar_xray.jpg"
images[7] = "randomimages/g292_xray.jpg"
images[8] = "randomimages/jupiter_xray.jpg"
images[9] = "randomimages/n132d_xray.jpg"
images[10] = "randomimages/ngc1553_xray.jpg"
images[11] = "randomimages/ngc1569_xray.jpg"
images[12] = "randomimages/ngc3603_xray.jpg"
images[13] = "randomimages/ngc4649_xray.jpg"
images[14] = "randomimages/ngc4697_xray.jpg"
images[15] = "randomimages/pks1127_xray.jpg"
images[16] = "randomimages/rcw38_xray_med.jpg"
images[17] = "randomimages/sagAlong_xray.jpg"
images[18] = "randomimages/snr0103_comp.jpg"
images[19] = "randomimages/tycho_xray.jpg"
images[20] = "randomimages/m17_xray_med.jpg"
images[21] = "randomimages/ngc6888_comp.jpg"
images[22] = "randomimages/rdcs1252_comp.jpg"
images[23] = "randomimages/n63a_comp.jpg"
images[24] = "randomimages/m83unmark.jpg"
images[25] = "randomimages/snr0540_xray.jpg"
images[26] = "randomimages/w49b_xray.jpg"
images[27] = "randomimages/sgra_xray.jpg"

var image = images[rand1]

links = new Array
links[1] = "http://chandra.harvard.edu/photo/2003/b1957/index.html"
links[2] = "http://chandra.harvard.edu/photo/2002/0237/index.html"
links[3] = "http://chandra.harvard.edu/photo/2003/cenajet/index.html"
links[4] = "http://chandra.harvard.edu/photo/2002/0146/index.html"
links[5] = "http://chandra.harvard.edu/photo/cycle1/0015/index.html"
links[6] = "http://chandra.harvard.edu/photo/0099/index.html"
links[7] = "http://chandra.harvard.edu/photo/cycle1/0112/index.html"
links[8] = "http://chandra.harvard.edu/photo/2002/0001/index.html"
links[9] = "http://chandra.harvard.edu/photo/2002/0050/index.html"
links[10] = "http://chandra.harvard.edu/photo/2002/1058/index.html"
links[11] = "http://chandra.harvard.edu/photo/2002/1060/index.html"
links[12] = "http://chandra.harvard.edu/photo/cycle1/1123/index.html"
links[13] = "http://chandra.harvard.edu/photo/2002/1139/index.html"
links[14] = "http://chandra.harvard.edu/photo/2002/1140/index.html"
links[15] = "http://chandra.harvard.edu/photo/2002/1127/index.html"
links[16] = "http://chandra.harvard.edu/photo/2002/rcw38/index.html"
links[17] = "http://chandra.harvard.edu/photo/2003/0203long/index.html"
links[18] = "http://chandra.harvard.edu/photo/2003/snr0103/index.html"
links[19] = "http://chandra.harvard.edu/photo/2002/0005/index.html"
links[20] = "http://chandra.harvard.edu/photo/2003/m17/index.html"
links[21] = "http://chandra.harvard.edu/photo/2003/ngc6888/index.html"
links[22] = "http://chandra.harvard.edu/photo/2004/rdcs1252/index.html"
links[23] = "http://chandra.harvard.edu/photo/2003/n63a/index.html"
links[24] = "http://chandra.harvard.edu/photo/2004/m101/index.html"
links[25] = "http://chandra.harvard.edu/photo/2004/snr0540/index.html"
links[26] = "http://chandra.harvard.edu/photo/2004/w49b/index.html"
links[27] = "http://chandra.harvard.edu/photo/2004/sgra/index.html"

var link = links[rand1]