Limit the types of tags allowed in TinyMCE

document_root/javascript/mce.js

@@ -8,5 +8,10 @@ tinyMCE.init({
     theme_advanced_buttons1 : "bold, italic, underline, sub, sup, spellchecker", //, crosslistings",
     theme_advanced_buttons2 : "",
     theme_advanced_buttons3 : "",
-    noneditable_noneditable_class : "mceNonEditable"
+    noneditable_noneditable_class : "mceNonEditable",
+    valid_elements : ""
+                   + "-strong/-b,"
+                   + "-em/-i,"
+                   + "-sub,"
+                   + "-sup"
 });
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