non-theme dir were listed as themes. now checking for the existance of $dir/themes.conf.php : old-style themes will be therefore IGNORED

admin/panels/themes/admin.themes.php

@@ -94,6 +94,9 @@
 				
 				$f = $d . '/theme.conf.php';
 				
+				if (!file_exists($f))
+					continue;
+				
 				$theme = admin_theme_data($d . '/theme.conf.php', $thm, $this->defprev);
 				
 				$info[] = $theme;

admin/panels/themes/admin.themes.tpl

@@ -9,12 +9,14 @@
 </div>
 
 
+
+{if $available_themes}
+
 <div id="available-themes">
 
 <h2>{$panelstrings.head2}</h2>
 <p>{$panelstrings.descr}</p>
 
-{if $available_themes}
 
 <ul>
 {foreach from=$available_themes item=thm}