CoolMenu Displayer Menu problems with PermissionAdapter

I use struts-menu 2.2 with CoolMenu (3) in frames.
I have now extended my app with my own implementation of 
PermissionAdapter. It seems that the implementation of the CoolMenu 
displayer does not hide menus for unpermitted users but shows them in a 
different color. There seems to be a problem since I get a JavaScript error:

Error: cmDisBGColorOff is not defined
Source File: http://smartwszg3:8080/Echnaton/buildAppHeader.do
Line: 209

The generated code looks OK apart from the fact, that this object (and I 
guess also the object 'cmDisBGColorOn') is not defined:

<script language="javascript">

oCMenu.makeMenu('MyNTAcct','','My NT Account'+cmTopMenuImage+'','','','','','','',cmDisBGColorOff,cmDisBGColorOn,cmDisTxtColor,cmDisHoverColor,'')
oCMenu.makeMenu('MyNTAcct_Props','MyNTAcct','Properties','','','','','','',cmDisBGColorOff,cmDisBGColorOn,cmDisTxtColor,cmDisHoverColor,'')
oCMenu.makeMenu('MyNTAcct_Trx','MyNTAcct','Transactions','','','','','','',cmDisBGColorOff,cmDisBGColorOn,cmDisTxtColor,cmDisHoverColor,'')
oCMenu.makeMenu('MyNTAcct_HDProf','MyNTAcct','HD & Profile','','','','','','',cmDisBGColorOff,cmDisBGColorOn,cmDisTxtColor,cmDisHoverColor,'')
oCMenu.makeMenu('MyNTAcct_Memberships','MyNTAcct','Group memberships','','','','','','',cmDisBGColorOff,cmDisBGColorOn,cmDisTxtColor,cmDisHoverColor,'')

.......

Can anybody help me with that? Is there a way to simply NOT display 
menus which are not allowed. Users get only confused, if they see 
greyed-out things (bad software design).

Many thanks for your help

Tom



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