function tagcloud($taglist, $num = "") {
 
        arsort($taglist); // sort by number of tag instances
        if ($num) array_splice($taglist, $num); // keep the top $num - kill the rest
        ksort($taglist); // sort by tag name alphabetically
        $max = max($taglist);
        
        foreach ($taglist as $tag => $number) {
                echo "<span style=\"font-size:";
                echo 100+ceil((($number-min($taglist)) / ($max-min($taglist))) * 10)*10;
                echo "%\"><a href=\"tag/" . $tag . "\" title=\"$number people have tagged this\">$tag</a></span>\n";
        
        }
        echo "\n";
        
}