PHP Code:
<?PHP
$filName = "./galleries.txt";
$arry = file($filName);
$randNum = rand(0,sizeof($arry)-1);
header("Location: ". $arry[$randNum]);
?>
put your links in a text file 1 URL per line, name it amater.txt or teen.tx (you get the idea) save the above as samecatagoryasthe galleriestxt.php , put them in the same folder you'll be in business