improved generation of BNC dictionaries ; now called TopDictionary for clarity

src/www/js/wc.js

@@ -1,5 +1,5 @@
 var wc={}
-wc.cnl="Phrasebook" // try this controlled natural language first
+//wc.cnl="Phrasebook" // try this controlled natural language first
 wc.f=document.forms[0]
 wc.o=element("output")
 wc.e=element("extra")