[Pelikano]

Well, why are you doing:

PHP Code:

if(player.level in this.localinfo[0][1]){ 


Instead of checking the whole Array?

Also when you start showing a GUI, it'll remain untill it's destroy()ed, and in this script, you're just checking if the GUI should be showed, if yes you show it, if not you don't.

Using a TimeOut here is just unnecessary, I'd suggest you do:

PHP Code:

//#CLIENTSIDE 
function onCreated(){ 
    this.localinfo = { 
        {"Electric Workshop", "noc_inside-elect.nw"}, 
        {"Car Workshop", "noc_inside-mech-garage.nw"}, 
        {"Guns Shop", "noc_inside-general-store.nw"} 
    };
    if (player.level in this.localinfo[0][1]) {
      ShowGui();
    }
} 
function ShowGui() {
  new GuiBitmapButtonCtrl("tutorial_button") { 
    x = screenwidth - 64; 
    y = 0; 
    width = 64; 
    height = 64; 
    normalbitmap = "noc_button.png"; 
    mouseoverbitmap = "noc_button-over.png"; 
    pressedbitmap = "noc_button-click.png"; 
  }   
}
function onPlayerEnters(){ 
  if (player.level in this.localinfo[0][1]) { 
    if (!tutorial_button) {
      tutorial_button.destroy();
    }
  }
  else { 
    ShowGui();
  } 
}