Help with GUI

[protagonist]

NPC Code:

---

//#CLIENTSIDE



function onWeaponFired(){

 new GuiWindowCtrl(WindowTest){ 

      extent = {140,62}; 

      position = {50,50}; 



      text = "Test Window"; 



      new GuiButtonCtrl(Okay){ 

          position = {6,24}; 

          extent = {128,32}; 



          text = "Okay!"; 

      } 

  }

 }

 function WindowTest.onAction(){

 WindowTest.destroy;

 }

---

What's wrong with it?