var myimages=new Array()
  //specify random images below. You can have as many as you wish
  myimages[1]="/images2/help01.jpg"
  myimages[2]="/images2/help02.jpg"
  myimages[3]="/images2/help03.jpg"
  myimages[4]="/images2/help04.jpg"
  
  var ry=Math.floor(Math.random()*myimages.length)
  
  function randomImage(){
  if (ry==0)
     ry=1
     document.write('<img src="'+myimages[ry]+'" width="780" height="132" border="0" alt=""')
}