 
 //MENU
 char* EMPTY = "                ";
-char* beerSizes[] = {
-  "0.33", "0.5"};
-MenuItem menu[] = {
-  {
-    "Calibrate", 0  }
-  , {
-    "Tare", 1  }
-  , {
-    "Beersize", 2  }
-  , {
-    "Keg Weight", 3  }
-};
+char* beerSizes[] = {"0.33", "0.5"};
+MenuItem menu[] = {{"Calibrate", 0} , {"Tare", 1  } , {"Beersize", 2  } , {"Keg Weight", 3  }};
 unsigned int lastItem = 3;
 unsigned int menuMarker = 0;
+unsigned int level = 0;
 
 //GUI VARIABLES
 unsigned int printGUI = 0;

}

void doRight() {
  if (printGUI) {} 
  else {
    lcd.clear();
    printGUI = 1;

void doSelect() {
  if (printGUI) {
    doSelect(menuMarker);
  }
}

void doLeft() {
  if (printGUI) {
    if (level > 0) {
      level--;
    } else {
      lcd.clear();
      printGUI = 0;
    }
   } 
}

void doUp() {
  if (menuMarker == 0) {
    menuMarker = lastItem;
   } else {
    menuMarker--;
   }
}

void doDown() {
 if (printGUI) {
   if (menuMarker >= lastItem) {
      menuMarker = 0;
    } else {
      menuMarker++;
    }
  }
}

