diff --git a/README.rdoc b/README.rdoc
index 9d2362a..5f25ed0 100644
--- a/README.rdoc
+++ b/README.rdoc
@@ -11,7 +11,7 @@ Prototype currently targets the following platforms:
 
 * Microsoft Internet Explorer for Windows, version 6.0 and higher
 * Mozilla Firefox 1.5 and higher
-* Apple Safari 2.0 and higher
+* Apple Safari 2.0.4 and higher
 * Opera 9.25 and higher
 * Chrome 1.0 and higher
 
diff --git a/src/lang/string.js b/src/lang/string.js
index 5066d0d..f89cd13 100644
--- a/src/lang/string.js
+++ b/src/lang/string.js
@@ -293,7 +293,11 @@ Object.extend(String.prototype, (function() {
    *  underscore (`_`).
   **/
   function underscore() {
-    return this.gsub(/::/, '/').gsub(/([A-Z]+)([A-Z][a-z])/,'#{1}_#{2}').gsub(/([a-z\d])([A-Z])/,'#{1}_#{2}').gsub(/-/,'_').toLowerCase();
+    return this.replace(/::/g, '/')
+               .replace(/([A-Z]+)([A-Z][a-z])/g, '$1_$2')
+               .replace(/([a-z\d])([A-Z])/g, '$1_$2')
+               .replace(/-/g, '_')
+               .toLowerCase();
   }
 
   /**
@@ -302,7 +306,7 @@ Object.extend(String.prototype, (function() {
    *  Replaces every instance of the underscore character ("_") by a dash ("-").
   **/
   function dasherize() {
-    return this.gsub(/_/,'-');
+    return this.replace(/_/g, '-');
   }
 
   /** related to: Object.inspect
@@ -312,9 +316,11 @@ Object.extend(String.prototype, (function() {
    *  double quotes, with backslashes and quotes escaped).
   **/
   function inspect(useDoubleQuotes) {
-    var escapedString = this.gsub(/[\x00-\x1f\\]/, function(match) {
-      var character = String.specialChar[match[0]];
-      return character ? character : '\\u00' + match[0].charCodeAt().toPaddedString(2, 16);
+    var escapedString = this.replace(/[\x00-\x1f\\]/g, function(character) {
+      if (character in String.specialChar) {
+        return String.specialChar[character];
+      }
+      return '\\u00' + character.charCodeAt().toPaddedString(2, 16);
     });
     if (useDoubleQuotes) return '"' + escapedString.replace(/"/g, '\\"') + '"';
     return "'" + escapedString.replace(/'/g, '\\\'') + "'";
@@ -336,7 +342,7 @@ Object.extend(String.prototype, (function() {
    *  This security method is called internally.
   **/
   function unfilterJSON(filter) {
-    return this.sub(filter || Prototype.JSONFilter, '#{1}');
+    return this.replace(filter || Prototype.JSONFilter, '$1');
   }
 
   /**
diff --git a/src/lang/template.js b/src/lang/template.js
index d3cb442..435a3e7 100644
--- a/src/lang/template.js
+++ b/src/lang/template.js
@@ -139,7 +139,7 @@ var Template = Class.create({
       if (match == null) return before;
 
       while (match != null) {
-        var comp = match[1].startsWith('[') ? match[2].gsub('\\\\]', ']') : match[1];
+        var comp = match[1].startsWith('[') ? match[2].replace(/\\\\]/g, ']') : match[1];
         ctx = ctx[comp];
         if (null == ctx || '' == match[3]) break;
         expr = expr.substring('[' == match[3] ? match[1].length : match[0].length);