Fix some erroneous variable names (sorry)
diff --git a/system/helpers/language_helper.php b/system/helpers/language_helper.php
index f931208..6d24a9c 100644
--- a/system/helpers/language_helper.php
+++ b/system/helpers/language_helper.php
@@ -55,9 +55,9 @@
 		$CI =& get_instance();
 		$line = $CI->lang->line($line);
 
-		if ($id !== '')
+		if ($for !== '')
 		{
-			$line = '<label for="'.$id.'"'._stringify_attributes($attributes).'>'.$line.'</label>';
+			$line = '<label for="'.$for.'"'._stringify_attributes($attributes).'>'.$line.'</label>';
 		}
 
 		return $line;