Image filter in ckFinder standalone version

Hi all,

I open ckfinder in a popup, now i'd like to filter contet and show only images. how can i do ?
is there some setting that i have to put here ?
<%
' You can use the "CKFinder" class to render CKFinder in a page:
Dim oFinder
Set oFinder = New CKFinder
oFinder.BasePath = "/luna/userMedia/CKFinder/"
oFinder.SelectFunction = "ShowFileInfo"
oFinder.Create
%>

thank you all!