Zná IE6 a IE7 událost "onclick"?

// Vyhledavani podle kategorie //
echo '<b>'.__VYBRAT_KATEGORII_PRODUKT_POMOCI_FILTRU__.': </b><br />'; 
echo '<br /><form name="form2" method="post" action="">
<select name="id_kat_vyhledavani" size="1">';
$result_s = mysql_query("SELECT * FROM skupiny 
							WHERE web='".$_GET['eshop']."' 
							AND aktivni != '0'
							ORDER BY str_en") or die(err(1));
echo '<option name="id_kat_vyhledavani" value="0">'.__VYBER__.'</option>';
while ($row_s = mysql_fetch_array($result_s)) {
	echo '<option name="id_kat_vyhledavani" value = "'.$row_s['id'].'"';
	if ($row_s['id'] === $_POST['id_kat_vyhledavani'] OR ($row_s['id'] === $_SESSION['id_kat_vyhledavani'] AND $_POST['id_kat_vyhledavani'] == 0)) {
  		echo 'selected';
 	}
 	echo ' onclick="javascript: form2.submit();">';
	if ($jazyk == 'cz') {
		echo $row_s['nadpis_cz'];
	} else {
		echo $row_s['nadpis_en'];
	} 
	echo '</option>';

}
echo '</select>';



// podkategorie
echo '<select name="id_podkat_vyhledavani" size="1">';
$query_ps = "SELECT * FROM podskupiny 
				WHERE web='".$_GET['eshop']."' 
				AND aktivni != '0' ";
if (isset ($_SESSION['id_kat_vyhledavani']) AND (!isset($_POST['id_kat_vyhledavani']))) {
	$query_ps .= " AND id_sk='".$_SESSION['id_kat_vyhledavani']."' ";
}
if (isset ($_POST['id_kat_vyhledavani'])) {
	$query_ps .= " AND id_sk='".$_POST['id_kat_vyhledavani']."' ";
}
$query_ps .= " ORDER BY str_en";

$result_ps = mysql_query ($query_ps) or die(err(1));

echo '<option name="id_podkat_vyhledavani" value="0">'.__VYBER__.'</option>';
if ($_POST['id_kat_vyhledavani'] != 0 OR $_SESSION['id_kat_vyhledavani'] != 0) {
	while ($row_ps = mysql_fetch_array($result_ps)) {
		echo '<option name="id_podkat_vyhledavani" value="'.$row_ps['id'].'"';
    	if ($row_ps['id'] === $_POST['id_podkat_vyhledavani'] OR ($row_ps['id'] === $_SESSION['id_podkat_vyhledavani'] AND $_POST['id_podkat_vyhledavani'] == 0)) {
	   		echo 'selected';
    	}
    	echo ' onclick="javascript: form2.submit();">';
		if ($jazyk == 'cz') {
			echo $row_ps['nadpis_cz'];
		} else {
			echo $row_ps['nadpis_en'];
		} 
		echo '</option>';		
	}
}
echo '</select>';