checking if Object is in a Set in the view

[Gideon]

HI,
i have two Objects, Page and Html.
Page contains a Set of html Objects.
all is working good but now i would to have something like this:

when displaying the Page-edit-form the List of available Htmls Objects should select the Html objects that are already inside the Set of the Page Object.

one thing i tried is to use the contains function from Set with the command like:

   <c&#58;if test="$&#123;command.htmls.contains&#91;html&#93;&#125;">

but this doesn't work.

so have any one a idee or solution how to check if a List or Set contains a Object within the jsp view ?

thank you.

mfg Gideon