diff --git a/javascript/localization.js b/javascript/localization.js
index 58c7b0a5..7c6ad836 100644
--- a/javascript/localization.js
+++ b/javascript/localization.js
@@ -1,3 +1,5 @@
+var re_num = /^[.\d]+$/;
+
 var original_lines = {};
 var translated_lines = {};
 
@@ -11,6 +13,15 @@ function textNodesUnder(el) {
     return a;
 }
 
+function canBeTranslated(node, text) {
+    if (!text) return false;
+    if (!node.parentElement) return false;
+    var parentType = node.parentElement.nodeName;
+    if (parentType == 'SCRIPT' || parentType == 'STYLE' || parentType == 'TEXTAREA') return false;
+    if (re_num.test(text)) return false;
+    return true;
+}
+
 function getTranslation(text) {
     if (!text) return undefined;
 
@@ -28,6 +39,9 @@ function getTranslation(text) {
 
 function processTextNode(node) {
     var text = node.textContent.trim();
+
+    if (!canBeTranslated(node, text)) return;
+
     var tl = getTranslation(text);
     if (tl !== undefined) {
         node.textContent = tl;