var imagenumber = 20 ;
var randomnumber = Math.random() ;
var rand1 = Math.round( (imagenumber-1) * randomnumber) + 1 ;
images = new Array;
images[1] = "slideshow/homeimg.jpg";
images[2] = "slideshow/homeimg2.jpg";
images[3] = "slideshow/homeimg3.jpg";
images[4] = "slideshow/chee2.jpg";
images[5] = "slideshow/AmberDetailMain.jpg";
images[6] = "slideshow/bobmainpage.jpg";
images[7] = "slideshow/BrightonMain.jpg";
images[8] = "slideshow/BrightonNightMain.jpg";
images[9] = "slideshow/CalvaryConferenceMain.jpg";
images[10] = "slideshow/CandyMain.jpg";
images[11] = "slideshow/depaul.jpg";
images[12] = "slideshow/detailS.jpg";
images[13] = "slideshow/detailsmall.jpg";
images[14] = "slideshow/GroveIronMobileMain.jpg";
images[15] = "slideshow/patricdetail.jpg";
images[16] = "slideshow/skiabovemainpage1.jpg";
images[17] = "slideshow/skibed.JPG";
images[18] = "slideshow/stonewindow.jpg";
images[19] = "slideshow/YING.JPG";
images[20] = "slideshow/Cover450Main.jpg";


var image = images[rand1];