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diff --git a/jsMath/extensions/boldsymbol.js b/jsMath/extensions/boldsymbol.js
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+/*
+ *  extensions/boldsymbol.js
+ *  
+ *  Part of the jsMath package for mathematics on the web.
+ *
+ *  This file implements the \boldsymbol macro.  You can activate it
+ *  by calling
+ *  
+ *    jsMath.Extension.Macro('boldsymbol');
+ *  
+ *  which will cause the extension to be loaded only when it is
+ *  needed, or you can force it to be loaded via
+ *  
+ *    jsMath.Extension.Require('boldsymbol');
+ *    
+ *  once jsMath.js has been loaded.
+ *  
+ *  Note that you will need to install the cmmib10 and cmbsy10 fonts
+ *  that are available from the jsMath extra font page at
+ *  
+ *      http://www.math.union.edu/locate/jsMath/download/extra-fonts/
+ *
+ *  to make this work in image mode.  Note that there is no unicode
+ *  fallback for these fonts at the moment.
+ *  
+ *  ---------------------------------------------------------------------
+ *
+ *  Copyright 2006-2007 by Davide P. Cervone
+ * 
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at
+ * 
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ */
+
+/********************************************************************/
+
+jsMath.Package(jsMath.Parser,{
+  
+  macros: {boldsymbol: 'BoldSymbol'},
+  
+  /*
+   *  Implement \boldsymbol{...}
+   */
+  BoldSymbol: function (name) {
+    var fam = jsMath.TeX.fam; var restart = 0;
+    var oldfam = [fam[0],fam[1],fam[2]];
+    fam[0] = "cmbx10"; fam[1] = "cmmib10"; fam[2] = "cmbsy10";
+    try{var box = this.ProcessArg(this.cmd+name)}
+      catch (e) {restart = (e == "restart")}
+    fam[0] = oldfam[0]; fam[1] = oldfam[1]; fam[2] = oldfam[2];
+    if (this.error) return; if (restart) {throw "restart"}
+    this.mlist.Add(jsMath.mItem.Atom('ord',box));
+  }
+  
+});