function doNpcSellItem(cid, itemid, amount, subType, ignoreCap, inBackpacks, backpack)
	local amount = amount or 1
	local subType = subType or 1
	local ignoreCap = ignoreCap and true or false

	local item = 0
	if(isItemStackable(itemid)) then
		if(isItemRune(itemid)) then
			amount = amount * subType
		end

		local count = amount
		repeat
			item = doCreateItemEx(itemid, math.min(100, count))
			if(doPlayerAddItemEx(cid, item, ignoreCap) ~= RETURNVALUE_NOERROR) then
				return 0, 0
			end

			count = count - math.min(100, count)
		until count == 0
		return amount, 0
	end

	local a = 0
	if(inBackpacks) then
		local container = doCreateItemEx(backpack, 1)
		local b = 1
		for i = 1, amount do
			item = doAddContainerItem(container, itemid, subType)
			if(itemid == ITEM_PARCEL) then
				doAddContainerItem(item, ITEM_LABEL)
			end

			if(isInArray({(getContainerCapById(backpack) * b), amount}, i)) then
				if(doPlayerAddItemEx(cid, container, ignoreCap) ~= RETURNVALUE_NOERROR) then
					b = b - 1
					break
				end

				a = i
				if(amount > i) then
					container = doCreateItemEx(backpack, 1)
					b = b + 1
				end
			end
		end

		return a, b
	end

	for i = 1, amount do
		item = doCreateItemEx(itemid, subType)
		if(itemid == ITEM_PARCEL) then
			doAddContainerItem(item, ITEM_LABEL)
		end

		if(doPlayerAddItemEx(cid, item, ignoreCap) ~= RETURNVALUE_NOERROR) then
			break
		end

		a = i
	end

	return a, 0
end