var img=new Array(13);
img[0]="http://www.sonomacoast.com/images/photo_bar/photo0.jpg";
img[1]="http://www.sonomacoast.com/images/photo_bar/photo1.jpg";
img[2]="http://www.sonomacoast.com/images/photo_bar/photo2.jpg";
img[3]="http://www.sonomacoast.com/images/photo_bar/photo3.jpg";
img[4]="http://www.sonomacoast.com/images/photo_bar/photo4.jpg";
img[5]="http://www.sonomacoast.com/images/photo_bar/photo5.jpg";
img[6]="http://www.sonomacoast.com/images/photo_bar/photo6.jpg";
img[7]="http://www.sonomacoast.com/images/photo_bar/photo7.jpg";
img[8]="http://www.sonomacoast.com/images/photo_bar/photo8.jpg";
img[9]="http://www.sonomacoast.com/images/photo_bar/photo9.jpg";
img[10]="http://www.sonomacoast.com/images/photo_bar/photo10.jpg";
img[11]="http://www.sonomacoast.com/images/photo_bar/photo11.jpg";
img[12]="http://www.sonomacoast.com/images/photo_bar/photo12.jpg";

whichImg = get_random();
whichImg2 = 0;
do {
  whichImg2 = get_random();
} while (whichImg == whichImg2);

function get_random() {
  // Make sure that random()*X) has the correct
  // number. The number of images defined below.
  var ranNum= Math.floor(Math.random() * 13);
  return ranNum;
}

function show_image() {
  // Here the actual displaying of the image is taking place.
  document.write("<img src='");
  document.write(img[whichImg]);
  document.write("' border='0' width='256' height='171' alt='Bodega Bay Area Photo' title='Bodega Bay Area Photo' />");
}

function show_image2() {
  // Here the actual displaying of the image is taking place.
  document.write("<img src='");
  document.write(img[whichImg2]);
  document.write("' border='0' width='256' height='171' alt='Bodega Bay Area Photo' title='Bodega Bay Area Photo' />");
}