diff --git a/app/views/browse/start.rjs b/app/views/browse/start.rjs
index c5247066e..244456f11 100644
--- a/app/views/browse/start.rjs
+++ b/app/views/browse/start.rjs
@@ -131,7 +131,7 @@ page << <<EOJ
     var div = document.createElement("div");
 
     var p = document.createElement("p");
-    p.appendChild(document.createTextNode("#{I18n.t('browse.start_rjs.loaded_an_area')} " + browseFeatureList.length + " #{I18n.t('browse.start_rjs.browsers')}"));
+    p.appendChild(document.createTextNode(i18n_js("#{I18n.t('browse.start_rjs.loaded_an_area_with_num_features', :num_features => '{{num_features}}')}", { num_features: browseFeatureList.length })));
     div.appendChild(p);
 
     var input = document.createElement("input");
@@ -486,6 +486,22 @@ page << <<EOJ
     }
   }
 
+  /*
+   This is a hack so that we can interpolate JavaScript variables in
+   translation strings from Ruby, doing the string replacement
+   client-side instead of on the server.
+  */
+  function i18n_js(string, keys) {
+    for (var key in keys) {
+      var re_key = '\{\{' + key + '\}\}';
+      var re = new RegExp(re_key, "g");
+
+      string = string.replace(re, keys[key]);
+    }
+
+    return string;
+  } 
+
   function setStatus(status) {
     $("browse_status").innerHTML = status;
     $("browse_status").style.display = "block";
diff --git a/config/locales/de.yml b/config/locales/de.yml
index 29af054b8..86dffa08d 100644
--- a/config/locales/de.yml
+++ b/config/locales/de.yml
@@ -149,8 +149,7 @@ de:
       zoom_or_select: "Karte vergrössern oder einen Bereich auf der Karte auswählen"
       drag_a_box: "Einen Rahmen über die Karte aufziehen, um einen Bereich auszuwählen"
       manually_select: "Einen anderen Kartenausschnitt manuell auswählen"
-      loaded_an_area: "Du hast einen Bereich geladen, der"
-      browsers: "Elemente enthält. Manche Browser haben Probleme bei der Darstellung einer so großen Datenmenge. Normalerweise ist es am besten, nur weniger als 100 Elemente zu betrachten; alles andere macht deinen Browser langsam bzw. lässt ihn nicht mehr auf Eingaben reagieren. Wenn du sicher bist, dass du diese Daten darstellen willst, klicke auf \'Daten laden\' unten."
+      loaded_an_area_with_num_features: "Du hast einen Bereich geladen, der {{num_features}} Elemente enthält. Manche Browser haben Probleme bei der Darstellung einer so großen Datenmenge. Normalerweise ist es am besten, nur weniger als 100 Elemente zu betrachten; alles andere macht deinen Browser langsam bzw. lässt ihn nicht mehr auf Eingaben reagieren. Wenn du sicher bist, dass du diese Daten darstellen willst, klicke auf \'Daten laden\' unten."
       load_data: "Daten laden"
       unable_to_load: "Konnte nicht geladen werden: Bereich der Größe"
       must_be_smaller: "ist zu groß (soll kleiner als 0.25 sein)"
diff --git a/config/locales/en.yml b/config/locales/en.yml
index c2aaf469a..7d3f64b00 100644
--- a/config/locales/en.yml
+++ b/config/locales/en.yml
@@ -149,8 +149,7 @@ en:
       zoom_or_select: "Zoom in or select an area of the map to view"
       drag_a_box: "Drag a box on the map to select an area"
       manually_select: "Manually select a different area"
-      loaded_an_area: "You have loaded an area which contains"
-      browsers: "features. In general, some browsers may not cope well with displaying this quantity of data. Generally, browsers work best at displaying less than 100 features at a time: doing anything else may make your browser slow/unresponsive. If you are sure you want to display this data, you may do so by clicking the button below."
+      loaded_an_area_with_num_features: "You have loaded an area which contains {{num_features}} features. In general, some browsers may not cope well with displaying this quantity of data. Generally, browsers work best at displaying less than 100 features at a time: doing anything else may make your browser slow/unresponsive. If you are sure you want to display this data, you may do so by clicking the button below."
       load_data: "Load Data"
       unable_to_load: "Unable to load: Bounding box size of"
       must_be_smaller: "is too large (must be smaller than 0.25)"
diff --git a/config/locales/fr.yml b/config/locales/fr.yml
index 8a5c36c87..9f84c67d2 100644
--- a/config/locales/fr.yml
+++ b/config/locales/fr.yml
@@ -64,8 +64,7 @@ fr:
       zoom_or_select: "Zoomer ou sélectionner une zone de la carte pour la visualiser"
       drag_a_box: "Dessiner une boite sur la carte pour sélectionner une zone"
       manually_select: "Sélectionner manuellement une zone différente"
-      loaded_an_area: "Vous avez chargé une zone qui contient"
-      browsers: "un grand nombre d'éléments. En général, les navigateurs ne supportent pas bien l'affichage de tant de données, et travaillent mieux lorsqu'ils affichent moins de 100 éléments : accepter peut rendre votre navigateur lent ou non fonctionnel. Si vous etes sûr de vouloir afficher ces données, vous pouvez le faire en appuyant sur le bouton ci-dessous."
+      loaded_an_area_with_num_features: "Vous avez chargé une zone qui contient {{num_features}} un grand nombre d'éléments. En général, les navigateurs ne supportent pas bien l'affichage de tant de données, et travaillent mieux lorsqu'ils affichent moins de 100 éléments : accepter peut rendre votre navigateur lent ou non fonctionnel. Si vous etes sûr de vouloir afficher ces données, vous pouvez le faire en appuyant sur le bouton ci-dessous."
       load_data: "Charger les données"
       unable_to_load: "Impossible de charger les données : la Bounding box d'une taille de"
       must_be_smaller: "est trop grande (elle doit être plus petite que 0.25)"
diff --git a/config/locales/he.yml b/config/locales/he.yml
index 0a5531e90..b6a29dcbf 100644
--- a/config/locales/he.yml
+++ b/config/locales/he.yml
@@ -145,8 +145,7 @@ he:
       zoom_or_select: "Zoom in or select an area of the map to view"
       drag_a_box: "Drag a box on the map to select an area"
       manually_select: "Manually select a different area"
-      loaded_an_area: "You have loaded an area which contains"
-      browsers: "features. In general, some browsers may not cope well with displaying this quanity of data. Generally, browsers work best at displaying less than 100 features at a time: doing anything else may make your browser slow/unresponsive. If you are sure you want to display this data, you may do so by clicking the button below."
+      loaded_an_area_with_num_features: "You have loaded an area which contains {{num_features}} features. In general, some browsers may not cope well with displaying this quanity of data. Generally, browsers work best at displaying less than 100 features at a time: doing anything else may make your browser slow/unresponsive. If you are sure you want to display this data, you may do so by clicking the button below."
       load_data: "Load Data"
       unable_to_load: "Unable to load: Bounding box size of"
       must_be_smaller: "is too large (must be smaller than 0.25)"
diff --git a/config/locales/is.yml b/config/locales/is.yml
index f9cf07367..b31da84be 100644
--- a/config/locales/is.yml
+++ b/config/locales/is.yml
@@ -149,8 +149,7 @@ is:
       zoom_or_select: "Þú verður að þysja að eða velja svæði á kortinu"
       drag_a_box: "Teiknaðu kassa á kortið til að velja svæði"
       manually_select: "Velja annað svæði á kortinu"
-      loaded_an_area: "Þú hefur valið svæði sem á eru"
-      browsers: "hlutir. Sumir vafrar höndla illa fleiri en 100 hluti í einu, en þú getur hlaðið þeim inn þrátt fyrir það ef þú telur þig geta höndlað það."
+      loaded_an_area_with_num_features: "Þú hefur valið svæði sem á eru {{num_features}} hlutir. Sumir vafrar höndla illa fleiri en 100 hluti í einu, en þú getur hlaðið þeim inn þrátt fyrir það ef þú telur þig geta höndlað það."
       load_data: "Hlaða inn gögnum"
       unable_to_load: "Gat ekki hlaðið gögnum: Svæði af stærðinni"
       must_be_smaller: "er of stórt, svæðið verður að vera minna en 0.25"
diff --git a/config/locales/it.yml b/config/locales/it.yml
index 7057b633f..5ca3ac102 100644
--- a/config/locales/it.yml
+++ b/config/locales/it.yml
@@ -145,8 +145,7 @@ it:
       zoom_or_select: "Ingrandire oppure selezionare l'area della mappa che si desidera visualizzare"
       drag_a_box: "Tracciare un riquadro sulla mappa per selezionare un'area"
       manually_select: "Seleziona manualmente un'area differente"
-      loaded_an_area: "E' stata caricata un'area che contiene"
-      browsers: "caratteristiche. In generale, alcuni browser potrebbero non visualizzare correttamente questa quantità di dati. Generalmente i browser lavorano al meglio  se si visualizzano meno di 100 caratteristiche alla volta: se si fa qualcos'altro il proprio browser potrebbe diventare lento o non rispondere più. Se si è sicuri di voler visualizzare questi dati, allora si può premere il pulsante sottostante."
+      loaded_an_area_with_num_features: "E' stata caricata un'area che contiene {{num_features}} caratteristiche. In generale, alcuni browser potrebbero non visualizzare correttamente questa quantità di dati. Generalmente i browser lavorano al meglio  se si visualizzano meno di 100 caratteristiche alla volta: se si fa qualcos'altro il proprio browser potrebbe diventare lento o non rispondere più. Se si è sicuri di voler visualizzare questi dati, allora si può premere il pulsante sottostante."
       load_data: "Carica dati"
       unable_to_load: "Impossibile caricare: la dimensione del riquadro di selezione di"
       must_be_smaller: "è troppo grande (deve essere minore di 0.25)"
diff --git a/config/locales/nl.yml b/config/locales/nl.yml
index 8a4ea183f..6b91e3cc2 100644
--- a/config/locales/nl.yml
+++ b/config/locales/nl.yml
@@ -145,8 +145,7 @@ nl:
       zoom_or_select: "Zoom in of selecteer een gebied van de kaart om te zien"
       drag_a_box: "Sleep een rechthoek op de kaart om een gebied te selecteren"
       manually_select: "Selecteer handmatig een ander gebied"
-      loaded_an_area: "Je hebt een gebied geladen dat"
-      browsers: "objecten bevat. In het algemeen kunnen sommige browsers niet goed overweg met zoveel gegevens. Normaal gesproken werken browsers het best met minder dan 100 objecten: als je meer weergeeft kan de browser traag worden of niet meer reageren. Als je zeker weet dat je de gegevens wilt laten zien, kan dat met de knop hieronder."
+      loaded_an_area_with_num_features: "Je hebt een gebied geladen dat {{num_features}} objecten bevat. In het algemeen kunnen sommige browsers niet goed overweg met zoveel gegevens. Normaal gesproken werken browsers het best met minder dan 100 objecten: als je meer weergeeft kan de browser traag worden of niet meer reageren. Als je zeker weet dat je de gegevens wilt laten zien, kan dat met de knop hieronder."
       load_data: "Gegevens laden"
       unable_to_load: "Niet mogelijk om te laden: grootte van de rechthoek ("
       must_be_smaller: ") is te groot (moet kleiner zijn dan 0,25)"
diff --git a/config/locales/pl.yml b/config/locales/pl.yml
index b35ea29b4..64210dc6f 100644
--- a/config/locales/pl.yml
+++ b/config/locales/pl.yml
@@ -145,8 +145,7 @@ pl:
       zoom_or_select: "Przybliż albo wybierz inny obszar mapy"
       drag_a_box: "Zaznacz prostokąt na mapie przeciągnięciem myszki aby wybrać obszar"
       manually_select: "Manualnie wybierz inny obszar"
-      loaded_an_area: "Załadowano obszar zawierający"
-      browsers: "obiektów.  Przeglądarki mogą nie radzić sobie z wyświetleniem tej ilości danych -- generalnie działają optymalnie przy wyświetlaniu mniej niż 100 obiektów jednocześnie, w przeciwnym wypadku przeglądarka może działac powoli lub przestać odpowiadać.  Jeśli jesteś pewien że chcesz wyświetlić dane, kliknij przycisk poniżej."
+      loaded_an_area_with_num_features: "Załadowano obszar zawierający {{num_features}} obiektów.  Przeglądarki mogą nie radzić sobie z wyświetleniem tej ilości danych -- generalnie działają optymalnie przy wyświetlaniu mniej niż 100 obiektów jednocześnie, w przeciwnym wypadku przeglądarka może działac powoli lub przestać odpowiadać.  Jeśli jesteś pewien że chcesz wyświetlić dane, kliknij przycisk poniżej."
       load_data: "Załaduj dane"
       unable_to_load: "Nie można załadować: prostokąt ograniczający"
       must_be_smaller: "jest zbyt duży (nie może przekraczać 0.25 stopnia)"
diff --git a/config/locales/ru.yml b/config/locales/ru.yml
index ab681dc40..a00b30291 100644
--- a/config/locales/ru.yml
+++ b/config/locales/ru.yml
@@ -145,8 +145,7 @@ ru:
       zoom_or_select: "Увеличьте или выберите область для просмотра"
       drag_a_box: "Для выбора области растяните рамку по карте"
       manually_select: "Выделить другую область"
-      loaded_an_area: "Вы загрузили область, которая содержит"
-      browsers: "объектов. Некоторые браузеры могут не справиться с отображением такого количества данных. Обычно браузеры лучшего всего обрабатывают до 100 объектов одновременно. Загрузка большего числа может замедлить ваш браузер или привести к зависанию. Если вы все равно хотите отобразить эти данные, нажмите на кнопку ниже."
+      loaded_an_area_with_num_features: "Вы загрузили область, которая содержит {{num_features}} объектов. Некоторые браузеры могут не справиться с отображением такого количества данных. Обычно браузеры лучшего всего обрабатывают до 100 объектов одновременно. Загрузка большего числа может замедлить ваш браузер или привести к зависанию. Если вы все равно хотите отобразить эти данные, нажмите на кнопку ниже."
       load_data: "Загрузить данные"
       unable_to_load: "Загрузка невозможна: размер квадрата"
       must_be_smaller: "— слишком большой (должен быть меньше 0.25)"
diff --git a/config/locales/sl.yml b/config/locales/sl.yml
index 3619a0cd1..7a3f8c962 100644
--- a/config/locales/sl.yml
+++ b/config/locales/sl.yml
@@ -145,8 +145,7 @@ sl:
       zoom_or_select: "Povečajte zemljevid ali izberite področje za prikaz"
       drag_a_box: "Za izbor področja povlecite pravokotnik na zemljevidu"
       manually_select: "Ročno izberite drugo področje"
-      loaded_an_area: "Naložili ste področje, ki vsebuje"
-      browsers: "elementov. Nekateri spletni brskalniki ne zmorejo prikaza takšne količine podatkov. Na splošno brskalniki najbolje prikazujejo 100 ali manj elementov hkrati: karkoli drugega lahko upočasni vaš brskalnik ali ga naredi neodzivnega. Če ste prepričani, da želite prikazati vse te podatke, pritisnite na spodnji gumb."
+      loaded_an_area_with_num_features: "Naložili ste področje, ki vsebuje {{num_features}} elementov. Nekateri spletni brskalniki ne zmorejo prikaza takšne količine podatkov. Na splošno brskalniki najbolje prikazujejo 100 ali manj elementov hkrati: karkoli drugega lahko upočasni vaš brskalnik ali ga naredi neodzivnega. Če ste prepričani, da želite prikazati vse te podatke, pritisnite na spodnji gumb."
       load_data: "Naloži podatke"
       unable_to_load: "Ni mogoče naložiti: Pravokotno področje velikosti"
       must_be_smaller: "je preveliko (mora biti manjše od 0.25)"
diff --git a/config/locales/zh-CN.yml b/config/locales/zh-CN.yml
index 06803d73d..caac6fbe9 100644
--- a/config/locales/zh-CN.yml
+++ b/config/locales/zh-CN.yml
@@ -145,8 +145,7 @@
       zoom_or_select: "放大或选择查看一个地图区域"
       drag_a_box: "通过拖曳窗口来选择区域"
       manually_select: "手动选择一个不同区域"
-      loaded_an_area: "你已经选择了一个区域包括了"
-      browsers: "features. 通常，一些浏览器不能很好显示高精度的数据。一般来讲，当像素点在100一下浏览器的显示效果最好。如果再做别的任务，可能会导致您的浏览器变慢/不响应如果您确定您想要显示这些数据，您可能要点击下面的按钮。"
+      loaded_an_area_with_num_features: "你已经选择了一个区域包括了{{num_features}} features. 通常，一些浏览器不能很好显示高精度的数据。一般来讲，当像素点在100一下浏览器的显示效果最好。如果再做别的任务，可能会导致您的浏览器变慢/不响应如果您确定您想要显示这些数据，您可能要点击下面的按钮。"
       load_data: "读取数据"
       unable_to_load: "无法读取：限制窗口的尺寸"
       must_be_smaller: "过大 (需小于 0.25)"