function expertSell(npcname, dura)
	if dura == nil then dura = 100 end
	inventory:update()
	if player:openStore(npcname) then -- open store
		for i, item in pairs(inventory.BagSlot) do -- for each item
			-- Only if equipment in bags
			if i > 60 and (item:isType("Weapon") or item:isType("Armor")) then
				-- only get tooltip if high dura
				local sellit = false
				if item.Durability > dura then
					local tooltip_right = item:getGameTooltip("right") -- get tooltip
					for i,tooltipline in pairs(tooltip_right) do
						if string.match(tooltipline," [IVX]+$") then -- if ends in roman numeral
							sellit = true
							break
						end
					end
				else
					sellit = true -- sell if dura is low
				end
				if sellit then
					item:use() -- sell it
				end
			end
		end
	end
end