diff --git a/build.xml b/build.xml
index da3dbf5..fe3f839 100644
--- a/build.xml
+++ b/build.xml
@@ -56,7 +56,7 @@
     </path>
 
     <!-- clean targets -->
-    <target name="clean" description="clean up">
+    <target name="clean-build" description="clean up">
         <delete dir="${build.dir}" failonerror="false" />
         <delete dir="${build.ide.dir}" failonerror="false" />
     </target>
@@ -69,7 +69,8 @@
         <delete dir="${doc.dir}" failonerror="false" />
     </target>
 
-    <target name="clean-all" depends="clean, clean-dist, clean-doc" >
+    <target name="clean-all" depends="clean-build, clean-dist, clean-doc" >
+        <delete dir="${javadoc.dir}" failonerror="false" />
     </target>
 
     <!-- compilation and distribution -->
@@ -133,8 +134,6 @@
         <echo message="================"/-->
         
         <for list="${tests.list}" param="test.class" delimiter="${line.separator}">
-        <!--for list="org/funz/script/MathExpressionTest.class" param="test.class" delimiter="${line.separator}"-->
-        <!--for list="org/funz/api/BatchRunTest.class" param="test.class" delimiter="${line.separator}"-->
             <sequential>
                 <echo message="@{test.class}"/>
                 <echo message="======================================="/>
@@ -245,7 +244,7 @@
         <echo message="help                 :   display this help" />
         <echo />
         <echo message="clean-all            :   clean everything that can be generated by ant targets" />
-        <echo message="clean                :   clean temp directories (./build, ./bin)" />
+        <echo message="clean-build                :   clean temp directories (./build, ./bin)" />
         <echo message="clean-dist           :   clean distribution (./dist)" />
         <echo message="clean-doc            :   clean documentation (./doc)" />
         <echo />