diff --git a/mods/spacesuit/init.lua b/mods/spacesuit/init.lua
index c35575f..7b0ab2a 100644
--- a/mods/spacesuit/init.lua
+++ b/mods/spacesuit/init.lua
@@ -7,16 +7,16 @@ spacesuit.air_block = "gas:oxygen"
 
 --sp manipulation
 local stack_one_sp = function(inventory)
-        return string.sub(inventory:get_stack("main", 1):get_name(), 1, 12)=="spacesuit:sp"
+        return string.sub(inventory:get_stack("spacesuit", 1):get_name(), 1, 12)=="spacesuit:sp"
 end
 
 local set_wear_sp = function(inventory, wear)
-        local name = inventory:get_stack("main", 1):get_name()
-        inventory:set_stack("main", 1,ItemStack({name=name,wear=wear}))
+        local name = inventory:get_stack("spacesuit", 1):get_name()
+        inventory:set_stack("spacesuit", 1,ItemStack({name=name,wear=wear}))
 end
 
 local player_get_sp = function(inventory)
-        return spacesuit.registered_spacesuits[inventory:get_stack("main", 1):get_name()]
+        return spacesuit.registered_spacesuits[inventory:get_stack("spacesuit", 1):get_name()]
 end
 	
 --skin
@@ -68,7 +68,7 @@ minetest.register_node("spacesuit:air_gasbottle", {
 		end
 		if gas.add_concentration(pos, "gas:oxygen", 64) ~= -1 then
 			itemstack:set_count(itemstack:get_count()-1)
-			user:get_inventory():add_item("main", "spacesuit:air_gasbottle_empty")
+			user:get_inventory():add_item("spacesuit", "spacesuit:air_gasbottle_empty")
 			return itemstack
 		end
 	end,
@@ -97,7 +97,7 @@ minetest.register_node("spacesuit:air_gasbottle_empty", {
 		if current_value > 65 then
 			meta:set_int("gas:concentration", 1)
 			itemstack:set_count(itemstack:get_count()-1)
-			user:get_inventory():add_item("main", "spacesuit:air_gasbottle")
+			user:get_inventory():add_item("spacesuit", "spacesuit:air_gasbottle")
 			minetest.chat_send_player(user:get_player_name(), "oxygen-bottle refilled!") 
 			return itemstack
 		else
@@ -162,7 +162,7 @@ minetest.register_globalstep(function(dtime)
 		local inv=player:get_inventory()
 		
 		if stack_one_sp(inv) then
-			local wear = inv:get_stack("main", 1):get_wear()
+			local wear = inv:get_stack("spacesuit", 1):get_wear()
 			if n == spacesuit.air_block then
 				local new_wear = wear-(65534/20)
 				if new_wear < 0 then new_wear = 0 end
@@ -175,15 +175,15 @@ minetest.register_globalstep(function(dtime)
 					player:set_breath(11)
 				else
 					local bottle = {name="spacesuit:air_gasbottle", count=1, wear=0, metadata=""}
-					print('bottle', inv:contains_item("main", bottle))
-					if inv:contains_item("main", bottle) then
-						local removed = inv:remove_item("main", bottle)
+					print('bottle', inv:contains_item("spacesuit", bottle))
+					if inv:contains_item("spacesuit", bottle) then
+						local removed = inv:remove_item("spacesuit", bottle)
 						set_wear_sp(inv, 0)
 						removed:set_name(removed:get_name() .. "_empty")
-						inv:add_item("main", removed)
+						inv:add_item("spacesuit", removed)
 						minetest.sound_play("marssurvive_pff", {pos=pos, gain = 1, max_hear_distance = 8,})
 						
-						if inv:contains_item("main", bottle) then --have one or more bottles 
+						if inv:contains_item("spacesuit", bottle) then --have one or more bottles 
 							minetest.chat_send_player(player:get_player_name(), "Warning: one more air-gasbottle is empty!")		
 						else
 							minetest.chat_send_player(player:get_player_name(), "Warning: have none air-gssbottle left!")
@@ -218,4 +218,6 @@ minetest.register_on_leaveplayer(function(player)
 	spacesuit.skin[player:get_player_name()]=nil
 end)
 
+dofile(minetest.get_modpath(minetest.get_current_modname()).."/inventory.lua")
+
 minetest.log("[MOD] spacesuit loaded")
diff --git a/mods/spacesuit/inventory.lua b/mods/spacesuit/inventory.lua
new file mode 100644
index 0000000..5c7c798
--- /dev/null
+++ b/mods/spacesuit/inventory.lua
@@ -0,0 +1,30 @@
+minetest.register_on_joinplayer(function(player)
+	player:get_inventory():set_size("spacesuit", 3)
+end)
+
+
+sfinv.register_page("spacesuit:spacesuit", {
+	title = "Spacesuit",
+	get = function(self, player, context)
+		return sfinv.make_formspec(player, context, [[
+				list[current_player;spacesuit;0,0;3,1]
+				image[0,0;1,1;spacesuit_sp_black_inv.png^[colorize:#CCCCCC99]
+				image[1,0;1,1;gasbottle.png^[colorize:#CCCCCC44]
+				image[2,0;1,1;gasbottle.png^[colorize:#CCCCCC44]
+				listring[current_player;main]
+			]], true)
+	end
+})
+
+minetest.register_allow_player_inventory_action(function(player, action, inventory, inventory_info)
+	local inv = player:get_inventory()
+	
+	if not inventory:get_location().name 
+	  or inventory:get_location().name ~= player:get_player_name() 
+	  then return 0 
+	end
+	
+	if action == "put" then end  
+	print("action")
+end)
+