function random_imglink(){
  var myimages=new Array()
  //specify random images below. You can have as many as you wish
  myimages[1]="e-banner/LatestFindingsofOmega3.gif"
  myimages[2]="e-banner/MolecularNeurodegeneration.gif"
  myimages[3]="e-banner/Frontiers in DDD 5.gif"
  myimages[4]="e-banner/Frontiers in CNS DD.gif"
  myimages[5]="e-banner/Frontiers in DDD.gif"
  myimages[6]="e-banner/Frontiers in DDD 2.gif"
  myimages[7]="e-banner/Frontiers in DDD 3.gif"
  myimages[8]="e-banner/Frontiers in DDD 4.gif"
  myimages[9]="e-banner/Frontiers in Med-Chem 1.gif"
  myimages[10]="e-banner/Frontiers in Med-Chem 2.gif"
  myimages[11]="e-banner/Frontiers in Med-Chem 3.gif"
  myimages[12]="e-banner/Frontiers in Med-Chem 4.gif"
  myimages[13]="e-banner/Frontiers in Med-Chem 5.gif"
  myimages[14]="e-banner/New Dev in Med-Chem.gif"
  
  
  
  //myimages[4]="e-banner/ICDDT(468x60).gif"

  //specify corresponding links below
  var imagelinks=new Array()
  imagelinks[1]="http://benthamscience.com/ebooks/9781608051779/index.htm"
  imagelinks[2]="http://benthamscience.com/ebooks/9781608050925/index.htm"
  imagelinks[3]="http://benthamscience.com/ebooks/9781608052035/index.htm"
  imagelinks[4]="http://benthamscience.com/ebooks/9781608051595/index.htm"
  imagelinks[5]="http://benthamscience.com/ebooks/9781608051991/index.htm"
  imagelinks[6]="http://benthamscience.com/ebooks/9781608052004/index.htm"
  imagelinks[7]="http://benthamscience.com/ebooks/9781608052011/index.htm"
  imagelinks[8]="http://benthamscience.com/ebooks/9781608052028/index.htm"
  imagelinks[9]="http://benthamscience.com/ebooks/9781608052042/index.htm"
  imagelinks[10]="http://benthamscience.com/ebooks/9781608052059/index.htm"
  imagelinks[11]="http://benthamscience.com/ebooks/9781608052066/index.htm"
  imagelinks[12]="http://benthamscience.com/ebooks/9781608052073/index.htm"
  imagelinks[13]="http://benthamscience.com/ebooks/9781608052080/index.htm"
  imagelinks[14]="http://benthamscience.com/ebooks/9781608051274/index.htm"
  //imagelinks[4]="http://www.icddt.com/"
  var ry=Math.floor(Math.random()*myimages.length)

  if (ry==0)
     ry=1
     document.write('<a href='+'"'+imagelinks[ry]+'"'+' onclick="window.open(this.href); return false;"><img src="'+myimages[ry]+'" border=0></a>')
}

  random_imglink()