diff --git a/doc/Editor.mm b/doc/Editor.mm
index 57208079..ebcd7a5f 100644
--- a/doc/Editor.mm
+++ b/doc/Editor.mm
@@ -40,7 +40,7 @@
 <node CREATED="1271052825952" ID="Freemind_Link_622561431" MODIFIED="1271052828013" TEXT="qooxdoo"/>
 <node CREATED="1271052830859" ID="Freemind_Link_18779066" MODIFIED="1271052833496" TEXT="APF!"/>
 </node>
-<node CREATED="1271052839079" ID="Freemind_Link_439583810" MODIFIED="1271052852530" TEXT="Options">
+<node CREATED="1271052839079" FOLDED="true" ID="Freemind_Link_439583810" MODIFIED="1271052852530" TEXT="Options">
 <node CREATED="1271052853166" ID="Freemind_Link_629899491" MODIFIED="1271052860101" TEXT="Tabs to spaces"/>
 <node CREATED="1271052862867" ID="Freemind_Link_746641062" MODIFIED="1271052866129" TEXT="Spaces to tabs"/>
 <node CREATED="1271052866517" ID="Freemind_Link_192666733" MODIFIED="1271052869210" TEXT="tab width"/>
@@ -50,8 +50,13 @@
 <node CREATED="1271052900934" ID="Freemind_Link_62594174" MODIFIED="1271052907981" TEXT="comment block"/>
 </node>
 </node>
+<node CREATED="1295094741432" ID="Freemind_Link_1547780849" MODIFIED="1295094754462" TEXT="shadow doc synced in web worker">
+<node CREATED="1295094757135" ID="Freemind_Link_1288894358" MODIFIED="1295094769539" TEXT="do computation intensive stuff in a worker"/>
+<node CREATED="1295094772327" ID="Freemind_Link_294024951" MODIFIED="1295094784554" TEXT="all operation &gt;= O(n)"/>
+<node CREATED="1295265748917" ID="Freemind_Link_730092876" MODIFIED="1295265754848" TEXT="jslint in worker"/>
 </node>
-<node CREATED="1271061753644" ID="Freemind_Link_1898747747" MODIFIED="1271061761714" POSITION="left" TEXT="Competition">
+</node>
+<node CREATED="1271061753644" FOLDED="true" ID="Freemind_Link_1898747747" MODIFIED="1271061761714" POSITION="left" TEXT="Competition">
 <node CREATED="1271061762151" ID="Freemind_Link_248244633" MODIFIED="1271061764275" TEXT="bespin"/>
 <node CREATED="1271061764616" ID="Freemind_Link_1186004994" MODIFIED="1271061768509" TEXT="codeMirror"/>
 <node CREATED="1271061780744" ID="Freemind_Link_457888774" LINK="http://www.cdolivet.com/index.php?page=editArea" MODIFIED="1271061808808" TEXT="editarea"/>