// JavaScript Document

function random_imglink(){
  var myimages=new Array()
  //specify random images below. You can have as many as you wish
  myimages[1]="images/01.png"
  myimages[2]="images/02.png" 
  myimages[3]="images/03.png"
  
var ry=Math.floor(Math.random()*myimages.length)

  if (ry==0)
     ry=1
     document.write('<img src="'+myimages[ry]+'" border="0" alt="Space for advertisement" title="">')
}

  random_imglink()