Disable zimlet from the web client

[yuelu]

I am wondering if there is a way to disable a zimlet from the web client. I tried using this.setEnabled(false), but it doesn't seem to do anything. What I am trying to do is to allow user to disable/enable zimlet by clicking on the zimlet in the zimlet panel. If there is no way to disable the zimlet this way, is it possible to turn off the "matchOn" dynamically so that the zimlet will not try to match any regular expression? Thanks.