diff --git a/build.xml b/build.xml
index df58558..2a2703a 100644
--- a/build.xml
+++ b/build.xml
@@ -205,7 +205,9 @@ $Id$
   <property name="serializer.jar.name"          value="serializer.jar"/>   
   <property name="build.serializer.jar"         value="${serializer.build.dir}/${serializer.jar.name}"/> 
   <property name="lib.serializer.jar"           value="./lib/${serializer.jar.name}"/>   
- 
+
+  <property name="api.j2se" value="http://java.sun.com/j2se/1.4/docs/api/"/>
+
   <!-- Class paths used in various targets -->
   <path id="docs.class.path">
     <pathelement location="${xmlapis.jar}" />
@@ -1120,6 +1122,7 @@ $Id$
           <group title="DOM 2" packages="org.w3c.dom*"/>
           <group title="XSLTC Core"
                  packages="org.apache.xalan.xsltc*"/>
+          <link href="${api.j2se}"/>
     </javadoc>
   </target>
 
@@ -1155,6 +1158,7 @@ $Id$
           <group title="DOM 2" packages="org.w3c.dom*"/>
           <group title="XSLTC Core"
                  packages="org.apache.xalan.xsltc*"/>
+          <link href="${api.j2se}"/>
     </javadoc>
   </target>