function getkeywords($thereferrer){
$searchengines=Array("search.yahoo p", "google q", "altavista q", "alltheweb q", "search.msn q");
for($i=0;$i<count($searchengines);$i++){
$currsearch=split(" ", $searchengines[$i]);
if(strpos($thereferrer, $currsearch[0])!=false){
$searchqueries=split("&", split("?", $thereferrer[1]));
break;
}
}
if($searchqueries){
for($i=0;$i<count($searchqueries);$i++){
if($searchqueries[$i][0]==$currsearch[1]){
$thekeywords=join(", ", split(" ", urldecode($searchqueries[$i][1])));
break;
}
}
  }
return $thekeywords;
}





if($referrerpage!="" $keywords=getkeywords($referrerpage);
else $keywords="Not Available";