function random_imglink(){
  var viewimages=new Array()
viewimages[1]="images/07.jpg"
viewimages[2]="images/08.jpg"
viewimages[3]="images/09.jpg"
viewimages[4]="images/10.jpg"
viewimages[5]="images/11.jpg"
viewimages[6]="images/12.jpg"
viewimages[7]="images/13.jpg"
viewimages[8]="images/17.jpg"
viewimages[9]="images/18.jpg"

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

  if (ry==0)
     ry=1
     document.write('<img src="'+viewimages[ry]+'" alt=\"Code Six\" border=1></a>')
}

  random_imglink()