Jak upravit kód na smazání příspěvku?

<a href='/~xkrus06/vymazat_prispevek.php?id=".$radek['id']."'>Vymazat příspěvek</a>

$db_host = "tratapapa";
        $db_username = "hatttapataa";
        $db_pass = "zse";
        $db_name = "huuu";

        @mysql_connect("$db_host", "$db_username", "$db_pass") or die("nepripojeno k databazi");
        @mysql_select_db("$db_name") or die("Nespravna databaze, či tabulka!!");

        $obsah = preg_replace('#(^|\s)([a-z]+://([^\s\w/]?[\w/])*)#is', '\\1<a href="\\2" title="\\2" class="koment"><strong>\\2</strong></a>');
        $obsah = preg_replace('#(^|\s)((www|ftp)\.([^\s\w/]?[\w/])*)#is', '\\1<a href="http://\\2" title="\\2" class="koment">\\2</a>');
        $obsah = preg_replace('#(^|\s)(([a-z0-9._%+-]+)@(([.-]?[a-z0-9])*))#is', '\\1<a href="mailto:\\2">\\2</a>');

        $q = mysql_query("SELECT * FROM `prispevky` WHERE `obsah` IS NOT NULL ORDER BY `id`DESC") or die(mysql_error());
        while ($r = mysql_fetch_array($q)) {

            echo "<div class='comentare'>";
            echo "<p class='titulekb'>Title: " . $r['titulek'] . "</p>";
            echo "<p class='autorb'>Author: " . $r['autor'] . "</p>";
            echo "<p class='obsahb'>" . $r['obsah'] . "</p>";
            echo "<p class='datumb'>Upload: " . $r['datum'] . "</p>";
            echo "</div><br>";
        }