disable specific docklets?

[Joe K. <jk...@gm...>]

Hi,

how can I disable specific docklets?  I want to disable the Opera docklet.  
I've tried:

$ cat ~/.icewm/winoptions | grep -i opera
Opera.tray: Ignore
opera.tray: Ignore
Opera.tray: ignore
opera.tray: ignore
opera.Opera.tray: Ignore

No luck.  In case you don't know what I refer to as 'docklet': it's that 
thingy in the toolbar, that ... OK, here's a pic:
http://www.imagebam.com/image/df163a80998092

right (or left, if you will) next to the network-applet you can see the 
Akregator-docklet.  What you can't see is the Opera-docklet.  Dunno why the 
icon is not visible.  So I right-clicked it to show you it's there.  Anywho, I 
want it gone.  Is that possible?

Regards
Joe

$ icewm --version
IceWM 1.2.37, Copyright 1997-2003 Marko Macek,  2001 Mathias Hasselmann

OS: Archlinux