Improved image-buttons and colored image creation

lib/functions.php

@@ -47,12 +47,9 @@ function write_mac($mac, $user_mac='xx:xx:xx:xx:xx:xx') {
     return $user_mac;
 }
 
-// redirect page
 function header_location($location) {
-    // send header
-    header("location: " . $location);
-
-    // exit to be sure
+    // redirect page
+    header('location:' . $location);
     exit;
 }
 
@@ -79,14 +76,6 @@ function sanitize($input) {
     return $input;
 }
 
-function mysql_nullstring($input) {
-    if (isset($input)) {
-        return $input;
-    } else {
-        return '';
-    }
-}
-
 function lang_getfrombrowser ($allowed_languages, $default_language, $lang_variable = null, $strict_mode = true) {
     if ($lang_variable === null) {
         $lang_variable = $_SERVER['HTTP_ACCEPT_LANGUAGE'];
@@ -139,7 +128,6 @@ function print_tree_rec($tree, $level) {
     return $output;
 }
 
-//function print_tree($params, &$smarty) {
 function print_tree($params, Smarty_Internal_Template $template) {
     if (empty($params['level'])) {
         $level = 0;
@@ -153,12 +141,9 @@ function print_tree($params, Smarty_Internal_Template $template) {
     }
 }
 
-function msgout(array $parameters, Smarty_Internal_Template $smarty)
-{
+function msgout(array $parameters, Smarty_Internal_Template $smarty) {
     // This is just a quick hack around missing {php} in Smarty3
     $GLOBALS['g_error']->PrintOut();
     $GLOBALS['g_warning']->PrintOut();
     $GLOBALS['g_message']->PrintOut();
 }
-
-?>