diff --git a/src/runtime/javascript/minibar/about.html b/src/runtime/javascript/minibar/about.html
index 05fba4aef..372d85f19 100644
--- a/src/runtime/javascript/minibar/about.html
+++ b/src/runtime/javascript/minibar/about.html
@@ -160,11 +160,13 @@ Some implementation details:
    <a href="minibar_translations.js">minibar_translations.js</a>.
    Some common auxiliary functions have also been moved to a separate file:
    <a href="minibar_support.js">minibar_support.js</a>.
+ <li>[Added 2011-08-09] Added some <a href="minibar-api.html">Minibar API</a>
+   documentation.
 </ul>
 
 <hr>
 <small class=modtime>
-<!-- hhmts start --> Last modified: Mon Aug  8 19:27:14 CEST 2011 <!-- hhmts end -->
+<!-- hhmts start --> Last modified: Thu Aug 11 17:07:13 CEST 2011 <!-- hhmts end -->
 </small>
 <address>
 <a href="http://www.cs.chalmers.se/~hallgren/">TH</a>
diff --git a/src/runtime/javascript/minibar/minibar-api.html b/src/runtime/javascript/minibar/minibar-api.html
index 758080815..8899117e2 100644
--- a/src/runtime/javascript/minibar/minibar-api.html
+++ b/src/runtime/javascript/minibar/minibar-api.html
@@ -29,7 +29,7 @@ div.modtime { float: right; }
 <body>
 <h1>Minibar API</h1>
 
-The minibar is structured as three object:
+The Minibar web app consists of the following objects:
 
 <ul>
   <li><a href="#Minibar">Minibar</a>
@@ -42,10 +42,10 @@ They are described below.
 <h2 id=Minibar>The Minibar object</h2>
 
 <p>
-This is the complete Minibar web app. It is defined in
+This object implements the complete Minibar web app. It is defined in
 <a href="minibar.js">minibar.js</a>. It also uses the <code>Input</code>
-and <code>Translations</code> objects, and some auxiliary functions defined
-in <a href="minibar_support.js">minibar_support.js</a>
+and <code>Translations</code> objects described below, and some auxiliary
+functions defined in <a href="minibar_support.js">minibar_support.js</a>
 and <a href="support.js">support.js</a>, so to use it in an
 HTML file, you would normally include at least the following:
 
@@ -116,7 +116,7 @@ HTML file, you would normally include at least the following:
 
 <h3>Constructor</h3>
 
-<code>var input=new Input(server,options,translations)</code>
+<code>var input=new Input(server,translations,options)</code>
 
 <ul>
   <li><code>server</code> is the PGF service object
@@ -134,17 +134,22 @@ HTML file, you would normally include at least the following:
     </table>
 
   <li><code>translations</code> is the object that is notified when the input
-  has changed. In the minibar, this is the object that display translations.
+  has changed. In the minibar, this is the object that display translations, but
+  other apps might of course use the entered text for other purposes.
   The following methods will be called:
   <ul>
-    <li><code>translations.clear()</code>
+    <li><code>translations.clear()</code> is called when there no entered
+    text.
     <li><code>translations.translateFrom({from:<var>conc</var>,input:<var>string</code>})</code>
+    is called when the user has entered some text. The <code>from</code>
+    property is the name of the concrete syntax and the <code>input</code>
+    property is the entered text.
   </ul>
 </ul>
 
 <h3>Properties and user interface</h3>
 
-The <code>input</code> object created by the <code>Input</code>constructor
+The <code>input</code> object created by the <code>Input</code> constructor
 contains two field that the caller should add to the user interface:
 <ul>
   <li><code>input.main</code> is the main user interface where the current
@@ -221,7 +226,7 @@ should add to the user interface:
 <hr>
 <div class=modtime>
 <small class=modtime>
-HTML <!-- hhmts start --> Last modified: Tue Aug  9 17:55:19 CEST 2011 <!-- hhmts end -->
+HTML <!-- hhmts start --> Last modified: Thu Aug 11 17:14:37 CEST 2011 <!-- hhmts end -->
 </small>
 </div>
 
diff --git a/src/runtime/javascript/minibar/minibar.js b/src/runtime/javascript/minibar/minibar.js
index efd36fee2..9c12099de 100644
--- a/src/runtime/javascript/minibar/minibar.js
+++ b/src/runtime/javascript/minibar/minibar.js
@@ -18,25 +18,21 @@ show_completions(complete_output)
 
 // For backward compatibility:
 function start_minibar(server,opts,target) {
-    return new Minibar(server,opts,target);
+    if(target) opts.target=target;
+    return new Minibar(server,opts);
 }
 
 /* --- Main Minibar object -------------------------------------------------- */
-function Minibar(server,opts,target) {
+function Minibar(server,opts) {
     // Contructor, typically called when the HTML document is loaded
 
     /* --- Configuration ---------------------------------------------------- */
 
     // default values for options:
     this.options={
-	show_abstract: false,
-	show_trees: false,
-	show_grouped_translations: true,
-	delete_button_text: "⌫",
-	default_source_language: null,
+	target: "minibar",
 	try_google: true,
 	feedback_url: null,
-	random_button: true,
 	help_url: null
     }
 
@@ -45,14 +41,14 @@ function Minibar(server,opts,target) {
 
     /* --- Creating the components of the minibar --------------------------- */
     this.translations=new Translations(server,this.options)
-    this.input=new Input(server,this.options,this.translations)
+    this.input=new Input(server,this.translations,this.options)
 
     /* --- Creating user interface elements --------------------------------- */
 
     this.menubar=empty("div");
     this.extra=div_id("extra");
 
-    this.minibar=element(target || "minibar");
+    this.minibar=element(this.options.target);
     this.minibar.innerHTML="";
     with(this) {
 	appendChildren(menubar,[input.menus,translations.menus,input.buttons])
diff --git a/src/runtime/javascript/minibar/minibar_input.js b/src/runtime/javascript/minibar/minibar_input.js
index 098c88bba..3269712e3 100644
--- a/src/runtime/javascript/minibar/minibar_input.js
+++ b/src/runtime/javascript/minibar/minibar_input.js
@@ -1,11 +1,21 @@
 
 /* --- Input object --------------------------------------------------------- */
 
-function Input(server,options,translations) {
-    // Input object constructor
-    this.options=options;
+function Input(server,translations,opts) { // Input object constructor
     this.server=server;
     this.translations=translations;
+
+    // Default values for options:
+    this.options={
+	delete_button_text: "⌫",
+	default_source_language: null,
+	random_button: true,
+    }
+
+    // Apply supplied options
+    if(opts) for(var o in opts) this.options[o]=opts[o];
+
+    // User interface elements
     this.main=empty("div");
     this.menus=empty("span");
     this.buttons=empty("span");
diff --git a/src/runtime/javascript/minibar/minibar_online.js b/src/runtime/javascript/minibar/minibar_online.js
index 6d15a306b..1c15e87bf 100644
--- a/src/runtime/javascript/minibar/minibar_online.js
+++ b/src/runtime/javascript/minibar/minibar_online.js
@@ -22,4 +22,4 @@ var minibar_options= {
 //feedback_url: "feedback.html",
   try_google: true
 }
-var minibar=new Minibar(server,minibar_options,"minibar");
+var minibar=new Minibar(server,minibar_options);
diff --git a/src/runtime/javascript/minibar/minibar_translations.js b/src/runtime/javascript/minibar/minibar_translations.js
index 3a9fb1fee..c9164a6a9 100644
--- a/src/runtime/javascript/minibar/minibar_translations.js
+++ b/src/runtime/javascript/minibar/minibar_translations.js
@@ -1,8 +1,17 @@
 /* --- Translations object -------------------------------------------------- */
 
-function Translations(server,options) {
+function Translations(server,opts) {
     this.server=server;
-    this.options=options;
+
+    // Default values for options:
+    this.options={
+	show_abstract: false,
+	show_trees: false,
+	show_grouped_translations: true,
+    }
+
+    // Apply supplied options
+    if(opts) for(var o in opts) this.options[o]=opts[o];
 
     this.main=empty("div");
     this.menus=empty("span");
