function roll_over(img_name, img_src)
{
   document[img_name].src = img_src;
}

function random_imglink()
{
  var myimages=new Array()
  //specify random images below. You can have as many as you wish
  myimages[1] = 'images/image01.jpg'
  myimages[2] = 'images/image02.jpg'
  myimages[3] = 'images/image03.jpg'
  myimages[4] = 'images/image04.jpg'
  myimages[5] = 'images/image05.jpg'
  myimages[6] = 'images/image06.jpg'
  myimages[7] = 'images/image07.jpg'
  myimages[8] = 'images/image08.jpg'
  myimages[9] = 'images/image09.jpg'
  myimages[10] = 'images/image10.jpg'
  myimages[11] = 'images/image11.jpg'
  myimages[12] = 'images/image12.jpg'
  myimages[13] = 'images/image13.jpg'
  myimages[13] = 'images/image13.jpg'
  myimages[14] = 'images/image14.jpg'
  myimages[15] = 'images/image15.jpg'
  myimages[16] = 'images/image16.jpg'
  myimages[17] = 'images/image17.jpg'
  myimages[18] = 'images/image18.jpg'
  myimages[19] = 'images/image19.jpg'
  myimages[20] = 'images/image20.jpg'
  myimages[21] = 'images/image21.jpg'
  myimages[22] = 'images/image22.jpg'
  myimages[23] = 'images/image23.jpg'
  myimages[24] = 'images/image24.jpg'
  myimages[25] = 'images/image25.jpg'
  myimages[26] = 'images/imag26.jpg'

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

  if (ry==0)
     ry=1
     document.write('<img src="'+myimages[ry]+'" border=0 width=205 height=330>')
}