function mainimage(){
  var myimages=new Array()
  myimages[1]="images/mainimage/mainimage1.jpg"
  myimages[2]="images/mainimage/mainimage2.jpg"
  myimages[3]="images/mainimage/mainimage3.jpg"

  var imagelinks=new Array()
  imagelinks[1]="prd_teamshirt1.html"
  imagelinks[2]="prd_jersey1.html"
  imagelinks[3]="prd_tee1.html"

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

  if (ry==0)
     ry=1
     document.write('<a href='+'"'+imagelinks[ry]+'"'+'><img src="'+myimages[ry]+'" border=0></a>')
}