more work for #169638. spam UI work (still in progress)

mailnews/base/resources/content/junkMail.js

@@ -128,7 +128,7 @@ function conditionallyEnableUI(id)
   var enabled;
 
   if (!id || id == "level") {
-    enabled = document.getElementById("label").checked;
+    enabled = document.getElementById("level").checked;
     dump("XXX enabled = " + enabled + "\n");
   }
 

mailnews/base/resources/content/junkMail.xul

@@ -56,7 +56,7 @@
   <description>&info2.label;</description>
   <separator/>
 
-  <checkbox id="level" oncommand="conditionallyEnableUI('label')" accesskey="&level.accesskey;" label="&level.label;"/>
+  <checkbox id="level" oncommand="conditionallyEnableUI('label');" accesskey="&level.accesskey;" label="&level.label;"/>
 
   <separator/>