coś nie trybi
java script wstawiłem w <head>
<script type="text/javascript">
$('select#akcja').change(function(){
var value = $(this).val();
$(this).parent('form').attr('action', value);
});
</script>
i dodałem do formularza
<form action="" method="post">
<input type="hidden" name="login" value="
<?php echo $username ?>"/>
<input type="hidden" name="password" value="
<?php echo $password ?>"/>
<input type="hidden" name="email" value="
<?php echo $email ?>"/>
<input type="hidden" name="wheredouknowusfrom" value="
<?php echo $wheredouknowusfrom ?>"/>
<input type="hidden" name="lastip" value="
<?php echo $lastip ?>"/>
<input type="hidden" name="loggedin" value="
<?php echo $loggedin ?>"/>
<input type="hidden" name="gm" value="
<?php echo $gm ?>"/>
<input type="hidden" name="banned" value="
<?php echo $banned ?>"/>
<input type="hidden" name="mhpoints" value="
<?php echo $mhpoints ?>"/>
<select id="akcja">
<option>----------------------------</option>
<optgroup label="Account">
<option value="edit_account.php">Edit Account</option>
<option value="delete_account.php">Delete Account</option>
<option value="ban_account.php">Ban Account</option>
<option value="unban_account.php">Unban Account</option>
</optgroup>
<optgroup label="Character">
<option value="view_characters.php">View Characters</option>
</optgroup>
<optgroup label="Guild">
<option value="view_guild.php">View Guild</option>
</optgroup>
</select>
<input type="submit" value="Action" >
</form>