ExternalEditor support patch

--- dtml/main.dtml.orig 2004-02-12 05:59:06.000000000 +0800
+++ dtml/main.dtml 2004-02-20 15:13:26.000000000 +0800
@@ -178,6 +178,10 @@
</dtml-if>
<dtml-except>
</dtml-try>
+ <dtml-try>
+ <dtml-var expr="externalEditLink_(this())">
+ <dtml-except>
+ </dtml-try>
</div>
</td>