org.ibex.js switch() statement

This:

<ibex>
     <ui:box>
         var i = 5;
         switch (i) {
             case 5: ibex.log.info("i=5");
             case 6: ibex.log.info("i=6");
         }
     </ui:box>
</ibex>

Produces:

Detecting JVM... Mac OS X ==> org.ibex.plat.Java2
=======================================================
             Platform: Ibex build: unknown
                 Main: argument 0: src/
                       argument 1: test
                       loading xwar
                       invoking initial template
             test.t:5: i=5

Should the switch() statement fall through to the next case (like 
Java)? I tried to work it out from the Ecma reference, but it's not the 
most accessible of documents.

-- d