diff --git a/sortt.js b/sortt.js
index 2b161e7..2510120 100644
--- a/sortt.js
+++ b/sortt.js
@@ -4,7 +4,7 @@
   @License MIT
   @Author 6543
   @Repository https://gitea.com/6543/gitea_sortt
-  @Version 1.0
+  @Version 1.1
 
 */
 
@@ -13,10 +13,10 @@ window.sortt=function(normsort,revsort,isdefault){
   //sortTable [normsort] (revsort) (isdefault)
 
   //normsort is needet
-  if (normsort) return false;
+  if (!(normsort)) return false;
 
   //default values of optinal parameters
-  if (revsort) revsort = "";
+  if (!(revsort)) revsort = "";
 
   // parse URL
   /*  script check if url has already a sort=