public boolean isItemUsableInBattle() {      
    	if (itemnumber <= 13) {
    		inBattle = true;
    	}  else if (itemnumber >= 14 && itemnumber <=32) {
    		inBattle = false;
    	} else if (itemnumber == 33 || itemnumber == 34 ||
                  itemnumber == 35 || itemnumber == 36) {
    		inBattle = true;
    	} else {
    		inBattle = false;
    	} 
        return inBattle;
    }