function random_imglink(){
  var img=new Array()
  img[1]="images/header.jpg"
  img[2]="images/header2.jpg"
  img[3]="images/header3.jpg"
  img[4]="images/header4.jpg"
  img[5]="images/header5.jpg"

  var ry=Math.floor(Math.random()*img.length)

  if (ry==0)
     ry=1
     document.write('<img src="'+img[ry]+'" border="0" alt="South Shore Campground - Crystal, Michigan"/>')
}

  random_imglink()