var randomlinks=new Array()

randomlinks[0]="http://www.jefferspet.com/ssc/search_results.asp?CID=0&keywords=sulfodene&cmkw=sulfodene&cm_mmc=Vendor-_-Farnam-_-Pet-_-Sulfodene"
randomlinks[1]="http://www.upco.com/cgi-bin/Upcol.storefront/4638bdc3002f7498ea6dc0a80aa50749/Product/View/632"
randomlinks[2]="http://www.valleyvet.com/ct_detail.html?pgguid=259b4f6e-62a2-4d37-abb1-0c43a358aa4e&ccd=IFA003"
randomlinks[3]="http://www.drugstore.com/templates/brand/default.asp?brand=38611&aid=337872"

function randomlink(){
window.open(randomlinks[Math.floor(Math.random()*randomlinks.length)])
}