public boolean isUpgradeable(ItemStack is){
		if(!(is.getType() == Material.WOOD_SWORD || is.getType() == Material.GOLD_SWORD || is.getType() == Material.IRON_SWORD || is.getType() == Material.DIAMOND_SWORD))return false;
		
		if(is.hasItemMeta()){
			ItemMeta im = is.getItemMeta();
			if(im.hasLore()){
				for(String s : im.getLore()){
					if(s.startsWith(ChatColor.GRAY + "Damage")){
						return true;
					}
				}
			}
		}
		
		return false;
	}