diff --git a/core/function/function_core.php b/core/function/function_core.php
index 9f0c50b..dfe6b33 100644
--- a/core/function/function_core.php
+++ b/core/function/function_core.php
@@ -1642,19 +1642,17 @@ function getexpiration()
     return mktime(0, 0, 0, $date['mon'], $date['mday'], $date['year']) + 86400;
 }
 
-function return_bytes($val)
-{
-    $val = trim($val);
-    $last = strtolower($val{strlen($val) - 1});
-    switch ($last) {
-        case 'g':
-            $val *= 1024;
-        case 'm':
-            $val *= 1024;
-        case 'k':
-            $val *= 1024;
-    }
-    return $val;
+function return_bytes($val) {
+	$last = strtolower($val[strlen($val)-1]);
+	if (!is_numeric($val)) {
+		$val = substr(trim($val), 0, -1);
+	}
+	switch($last) {
+		case 'g': $val *= 1024;
+		case 'm': $val *= 1024;
+		case 'k': $val *= 1024;
+	}
+	return $val;
 }
 
 
diff --git a/core/function/function_message.php b/core/function/function_message.php
index 853ed80..fef9f68 100644
--- a/core/function/function_message.php
+++ b/core/function/function_message.php
@@ -51,8 +51,6 @@ function dshowmessage($message, $url_forward = '', $values = array(), $extrapara
 	if(!empty($_G['inajax'])) {
 		$handlekey = $_GET['handlekey'] = !empty($_GET['handlekey']) ? dhtmlspecialchars($_GET['handlekey']) : '';
 		$param['handle'] = true;
-	}
-	if(!empty($_G['inajax'])) {
 		$param['msgtype'] = empty($_GET['ajaxmenu']) && (empty($_POST) || !empty($_GET['nopost'])) ? 2 : 3;
 	}
 	if($url_forward) {