open kfmclient in the same window

hi,

what argument I should supply to kfmclient to open a url in the same 
window istead in a new one?

I have in my home direvtory a .desktop file which have on exec key:
  Exec=kfmclient openProfile filemanagement file:///some/directory/

with konqi already open and browsing into my home directory, when i double 
click the icon of this .desktoop file, I get /some/directory opened into a 
new windows, while I need to open it into the same window.

thank you,
  radu