--- clickheat/index.php~	2011-04-20 00:53:09.000000000 +0300
+++ clickheat/index.php	2011-04-20 00:53:11.781485704 +0300
@@ -72,7 +72,7 @@
 {
 	$lang = strtolower(substr($_SERVER['HTTP_ACCEPT_LANGUAGE'], 0, 2));
 }
-if (!isset($lang) || !in_array($lang, $__languages))
+if (!isset($lang) || !in_array($lang, $__languages) || !file_exists(CLICKHEAT_ROOT.'languages/'.$lang.'.php'))
 {
 	$lang = 'en';
 }
--- clickheat/view.php~	2011-03-08 13:51:16.000000000 +0200
+++ clickheat/view.php	2011-04-20 00:52:19.615980496 +0300
@@ -92,6 +92,9 @@
 <?php
 foreach ($__languages as $lang)
 {
+	if (!file_exists(CLICKHEAT_ROOT.'languages/'.$lang.'.php')) {
+		continue;
+	}
 	echo '<a href="', CLICKHEAT_INDEX_PATH, 'language=', $lang, '"><img src="', CLICKHEAT_PATH, 'images/flags/', $lang, '.png" width="18" height="12" alt="', $lang, '" /></a> ';
 }
 ?><br />
--- clickheat/login.php~	2011-03-08 13:51:16.000000000 +0200
+++ clickheat/login.php	2011-04-20 00:52:40.036830709 +0300
@@ -17,6 +17,9 @@
 <?php
 foreach ($__languages as $lang) 
 {
+	if (!file_exists(CLICKHEAT_ROOT.'languages/'.$lang.'.php')) {
+		continue;
+	}
 	echo '<a href="', CLICKHEAT_INDEX_PATH, 'language=', $lang, '"><img src="', CLICKHEAT_PATH, 'images/flags/', $lang, '.png" width="18" height="12" alt="', $lang, '" /></a> ';
 }
 ?></div>