Index: ps/trunk/binaries/data/mods/public/gui/common/l10n.js
===================================================================
--- ps/trunk/binaries/data/mods/public/gui/common/l10n.js
+++ ps/trunk/binaries/data/mods/public/gui/common/l10n.js
@@ -1,8 +1,3 @@
-function getLocalizedResourceName(resourceName, context)
-{
-	return translateWithContext(context, resourceName);
-}
-
 /**
  * Format resource amounts to proper english and translate (for example: "200 food, 100 wood, and 300 metal").
  */
@@ -12,7 +7,7 @@
 		.filter(type => !!resources[type])
 		.map(type => sprintf(translate("%(amount)s %(resourceType)s"), {
 			"amount": resources[type],
-			"resourceType": getLocalizedResourceName(g_ResourceData.GetResource(type).name, "withinSentence")
+			"resourceType": resourceNameWithinSentence(type)
 		}));
 
 	if (amounts.length > 1)
Index: ps/trunk/binaries/data/mods/public/gui/common/tooltips.js
===================================================================
--- ps/trunk/binaries/data/mods/public/gui/common/tooltips.js
+++ ps/trunk/binaries/data/mods/public/gui/common/tooltips.js
@@ -47,6 +47,16 @@
 	return '[icon="icon_' + resource + '"]';
 }
 
+function resourceNameFirstWord(type)
+{
+	return translateWithContext("firstWord", g_ResourceData.GetNames()[type]);
+}
+
+function resourceNameWithinSentence(type)
+{
+	return translateWithContext("withinSentence", g_ResourceData.GetNames()[type]);
+}
+
 function bodyFont(text)
 {
 	return g_TooltipTextFormats.body[0] + text + g_TooltipTextFormats.body[1];
Index: ps/trunk/binaries/data/mods/public/gui/session/menu.js
===================================================================
--- ps/trunk/binaries/data/mods/public/gui/session/menu.js
+++ ps/trunk/binaries/data/mods/public/gui/session/menu.js
@@ -441,7 +441,6 @@
 
 function diplomacyFormatTributeButtons(i, hidden)
 {
-	let resNames = g_ResourceData.GetNames();
 	let resCodes = g_ResourceData.GetCodes();
 	let r = 0;
 	for (let resCode of resCodes)
@@ -461,7 +460,7 @@
 			continue;
 
 		button.enabled = controlsPlayer(g_ViewedPlayer);
-		button.tooltip = formatTributeTooltip(i, resNames[resCode], 100);
+		button.tooltip = formatTributeTooltip(i, resCode, 100);
 		button.onPress = (function(i, resCode, button) {
 			// Shift+click to send 500, shift+click+click to send 1000, etc.
 			// See INPUT_MASSTRIBUTING in input.js
@@ -479,14 +478,14 @@
 					amounts[res] = 0;
 				amounts[resCode] = 100 * multiplier;
 
-				button.tooltip = formatTributeTooltip(i, resNames[resCode], amounts[resCode]);
+				button.tooltip = formatTributeTooltip(i, resCode, amounts[resCode]);
 
 				// This is in a closure so that we have access to `player`, `amounts`, and `multiplier` without some
 				// evil global variable hackery.
 				g_FlushTributing = function() {
 					Engine.PostNetworkCommand({ "type": "tribute", "player": i, "amounts":  amounts });
 					multiplier = 1;
-					button.tooltip = formatTributeTooltip(i, resNames[resCode], 100);
+					button.tooltip = formatTributeTooltip(i, resCode, 100);
 				};
 
 				if (!isBatchTrainPressed)
@@ -713,7 +712,7 @@
 	for (let action of g_BarterActions)
 		barterButton[action] = Engine.GetGUIObjectByName(prefix + action + "Button[" + idx + "]");
 
-	let resource = getLocalizedResourceName(g_ResourceData.GetNames()[resourceCode], "withinSentence");
+	let resource = resourceNameWithinSentence(resourceCode);
 	barterButton.Buy.tooltip = sprintf(translate("Buy %(resource)s"), { "resource": resource });
 	barterButton.Sell.tooltip = sprintf(translate("Sell %(resource)s"), { "resource": resource });
 
@@ -1152,11 +1151,11 @@
 	closeObjectives();
 }
 
-function formatTributeTooltip(playerID, resource, amount)
+function formatTributeTooltip(playerID, resourceCode, amount)
 {
 	return sprintf(translate("Tribute %(resourceAmount)s %(resourceType)s to %(playerName)s. Shift-click to tribute %(greaterAmount)s."), {
 		"resourceAmount": amount,
-		"resourceType": getLocalizedResourceName(resource, "withinSentence"),
+		"resourceType": resourceNameWithinSentence(resourceCode),
 		"playerName": colorizePlayernameByID(playerID),
 		"greaterAmount": amount < 500 ? 500 : amount + 500
 	});
Index: ps/trunk/binaries/data/mods/public/gui/session/selection_details.js
===================================================================
--- ps/trunk/binaries/data/mods/public/gui/session/selection_details.js
+++ ps/trunk/binaries/data/mods/public/gui/session/selection_details.js
@@ -12,13 +12,10 @@
 
 function getResourceTypeDisplayName(resourceType)
 {
-	return getLocalizedResourceName(
-		g_ResourceData.GetNames()[
-			resourceType.generic == "treasure" ?
-				resourceType.specific :
-				resourceType.generic
-		],
-		"firstWord");
+	return resourceNameFirstWord(
+		resourceType.generic == "treasure" ?
+			resourceType.specific :
+			resourceType.generic);
 }
 
 // Updates the health bar of garrisoned units
Index: ps/trunk/binaries/data/mods/public/gui/session/session.js
===================================================================
--- ps/trunk/binaries/data/mods/public/gui/session/session.js
+++ ps/trunk/binaries/data/mods/public/gui/session/session.js
@@ -1147,7 +1147,6 @@
 		return;
 
 	let resCodes = g_ResourceData.GetCodes();
-	let resNames = g_ResourceData.GetNames();
 	for (let r = 0; r < resCodes.length; ++r)
 	{
 		let resourceObj = Engine.GetGUIObjectByName("resource[" + r + "]");
@@ -1157,7 +1156,7 @@
 		let res = resCodes[r];
 
 		let tooltip = '[font="' + g_ResourceTitleFont + '"]' +
-			getLocalizedResourceName(resNames[res], "firstWord") + '[/font]';
+			resourceNameFirstWord(res) + '[/font]';
 
 		let descr = g_ResourceData.GetResource(res).description;
 		if (descr)
Index: ps/trunk/binaries/data/mods/public/gui/summary/layout.js
===================================================================
--- ps/trunk/binaries/data/mods/public/gui/summary/layout.js
+++ ps/trunk/binaries/data/mods/public/gui/summary/layout.js
@@ -101,7 +101,7 @@
 			{ "identifier": "playername", "caption": translate("Player name"), "yStart": 26, "width": 200 },
 			...g_ResourceData.GetResources().map(res => ({
 				"identifier": res.code,
-				"caption": translateWithContext("firstWord", res.name),
+				"caption": resourceNameFirstWord(res.code),
 				"yStart": 34,
 				"width": 100
 			})),
@@ -153,8 +153,8 @@
 					"caption":
 						// Translation: use %(resourceWithinSentence)s if needed
 						sprintf(translate("%(resourceFirstWord)s exchanged"), {
-							"resourceFirstWord": translateWithContext("firstWord", res.name),
-							"resourceWithinSentence": translateWithContext("withinSentence", res.name)
+							"resourceFirstWord": resourceNameFirstWord(res.code),
+							"resourceWithinSentence": resourceNameWithinSentence(res.code)
 						}),
 					"yStart": 16,
 					"width": 100
Index: ps/trunk/binaries/data/mods/public/gui/summary/summary.xml
===================================================================
--- ps/trunk/binaries/data/mods/public/gui/summary/summary.xml
+++ ps/trunk/binaries/data/mods/public/gui/summary/summary.xml
@@ -6,6 +6,7 @@
 	<script file="gui/common/functions_utility.js"/>
 	<script file="gui/common/gamedescription.js"/>
 	<script file="gui/common/settings.js"/>
+	<script file="gui/common/tooltips.js"/>
 
 	<!-- After settings.js, which defines g_Settings and g_MaxPlayers. -->
 	<script file="gui/summary/counters.js"/>