function setcookie(key,str,min) {
if(!key) return;
if(!min) min=60*24*365;
var date = new Date();
date.setTime(date.getTime()+(min*60*1000));
document.cookie = key+"="+str+"; expires="+date.toGMTString()+"; path=/";
}
var query=unescape(location.search.substr(1));
var badstr=new Array('<','>','"',"'",'`','%','#','\\');
for(i=0;i<badstr.length;i++) query=query.split(badstr[i]).join();
var get=new Array(); 
var a=query.split("&");
for(var i=0; i<a.length;i++) {var j=a[i].split("="); get[j[0]]=j[1];} 
var ref=get['ref'];
if(ref) setcookie('ref',ref,60*24);