diff --git a/functions.lua b/functions.lua
index 4de28ca..ee4b13c 100644
--- a/functions.lua
+++ b/functions.lua
@@ -2747,9 +2747,7 @@ yl_speak_up.input_edit_option_dialog = function(player, formname, fields)
 		-- do not switch target dialog (we are in edit mode)
 		yl_speak_up.speak_to[pname].target_d_id = nil
 		-- show the trade with ID "<d_id> <o_id>"
-		minetest.show_formspec(pname, "yl_speak_up:do_trade_simple",
-			yl_speak_up.get_fs_trade_simple(player,
-					tostring(d_id).." "..tostring(o_id)))
+		yl_speak_up.show_fs_trade_simple(player, tostring(d_id).." "..tostring(o_id))
 		return
 	end
 
@@ -3219,8 +3217,7 @@ yl_speak_up.input_talk = function(player, formname, fields)
 		-- which dialog shall be shown in case of a successful trade?
 		yl_speak_up.speak_to[pname].target_d_id = target_dialog
 		-- show the trade dialog
-		minetest.show_formspec(pname, "yl_speak_up:do_trade_simple",
-			yl_speak_up.get_fs_trade_simple(player, trade_id))
+		yl_speak_up.show_fs_trade_simple(player, trade_id)
 		return
             end
 
diff --git a/trade_list.lua b/trade_list.lua
index 8547e1b..451ada0 100644
--- a/trade_list.lua
+++ b/trade_list.lua
@@ -31,8 +31,7 @@ yl_speak_up.input_trade_list = function(player, formname, fields)
 	-- normal mode: the player wants to see a particular trade
 	for k,v in pairs(dialog.trades) do
 		if(fields[ k ]) then
-			minetest.show_formspec(pname, "yl_speak_up:do_trade_simple",
-				yl_speak_up.get_fs_trade_simple(player, k))
+			yl_speak_up.show_fs_trade_simple(player, k)
 			return
 		end
 	end
diff --git a/trade_simple.lua b/trade_simple.lua
index d948d64..d195b7c 100644
--- a/trade_simple.lua
+++ b/trade_simple.lua
@@ -6,6 +6,20 @@ yl_speak_up.trade_fail_fs = "size[6,2]"..
 		"button_exit[2,1.5;1,0.9;exit;Exit]"
 
 
+-- provides an easier call for the trade simple formspec
+yl_speak_up.show_fs_trade_simple = function(player, trade_id)
+	if(not(player)) then
+		return
+	end
+	if(not(trade_id) and yl_speak_up.speak_to[pname]) then
+		trade_id = yl_speak_up.speak_to[pname].trade_id
+	end
+	minetest.show_formspec(player:get_player_name(),
+		"yl_speak_up:do_trade_simple",
+		yl_speak_up.get_fs_trade_simple(player, trade_id))
+end
+
+
 -- possible inputs:
 --    fields.edit_trade_simple         go on to showing the add_trade_simple formspec
 --    fields.abort_trade_simple, ESC,  depends on context
@@ -32,9 +46,7 @@ yl_speak_up.input_do_trade_simple = function(player, formname, fields)
 
 	-- a new trade has been stored - show it
 	if(fields.trade_simple_stored) then
-		minetest.show_formspec(pname, "yl_speak_up:do_trade_simple",
-			yl_speak_up.get_fs_trade_simple(player,
-				yl_speak_up.speak_to[pname].trade_id))
+		yl_speak_up.show_fs_trade_simple(player, yl_speak_up.speak_to[pname].trade_id)
 		return
 	end
 
@@ -138,8 +150,7 @@ yl_speak_up.input_do_trade_simple = function(player, formname, fields)
 	end
 
 	-- show this formspec again
-	minetest.show_formspec(pname, "yl_speak_up:do_trade_simple",
-		yl_speak_up.get_fs_trade_simple(player))
+	yl_speak_up.show_fs_trade_simple(player)
 end
 
 
@@ -725,8 +736,7 @@ minetest.register_on_joinplayer(function(player, last_login)
 			if(listname == "pay") then
 				local pname = player:get_player_name()
 				-- show formspec with updated information (perhaps sale is now possible)
-				minetest.show_formspec(pname, "yl_speak_up:do_trade_simple",
-					yl_speak_up.get_fs_trade_simple(player))
+				yl_speak_up.show_fs_trade_simple(player)
 			end
 		end,
 	        on_take = function(inv, listname, index, stack, player)
@@ -735,14 +745,12 @@ minetest.register_on_joinplayer(function(player, last_login)
 			if(listname == "pay") then
 				local pname = player:get_player_name()
 				-- show formspec with updated information (perhaps sale is now possible)
-				minetest.show_formspec(pname, "yl_speak_up:do_trade_simple",
-					yl_speak_up.get_fs_trade_simple(player))
+				yl_speak_up.show_fs_trade_simple(player)
 			elseif(listname == "buy") then
 				yl_speak_up.do_trade_simple(player, stack:get_count())
 				-- information may require an update (NPC might now be out of stock), or
 				-- the player can do the trade a second time
-				minetest.show_formspec(pname, "yl_speak_up:do_trade_simple",
-					yl_speak_up.get_fs_trade_simple(player))
+				yl_speak_up.show_fs_trade_simple(player)
 			end
 		end,
 	})