try this
Code:
if (!empty($row["tube"]))
tr("Sample:", "<a href=\"javascript: klappe_news('a4".$array['id']."')\"><img border=\"0\" src=\"pic/plus.gif\" id=\"pica".$array['id']."\" alt=\"Show/Hide\"></a> <u>[Show/Hide]</u><div id=\"ka4".$array['id']."\" style=\"display: none;\"><embed src='". str_replace("watch?v=", "v/", htmlspecialchars($row["tube"])) ."' type=\"application/x-shockwave-flash\" width=\"500\" height=\"410\"></embed>", 1);
else
tr("Sample:", "Sory no sample !", 1);