Fixed tuning issue

Client/Tuning/main.js

@@ -149,14 +149,14 @@ mp.events.add("showTuningMenu", () => {
 
     mainMenu.ItemSelect.on((item) => {
         var modSlot = getSlotId(item.Text);
-        var currentMod = localVehicle.getMod(modSlot);
-        var currentModItem;
-
         if (item.Text.startsWith("Slot")) {
             restStr = item.Text.substring(5);
             modSlot = parseInt(restStr);
         }
 
+        var currentMod = localVehicle.getMod(modSlot);
+        var currentModItem;
+
         var modNum = localVehicle.getNumMods(modSlot);
 
         var modMenu = new Menu(item.Text, "Änderung: " + item.Text, new Point(50, 50));
@@ -201,9 +201,6 @@ mp.events.add("showTuningMenu", () => {
 
         modMenu.MenuClose.on(() => {
             localVehicle.setMod(modSlot, currentMod);
-        });
-
-        modMenu.MenuClose.on(() => {
             mainMenu.Visible = true;
             modMenu.Visible = false;
         });