Open Document SSO logon

Hi all,

     Working with Webi, out user want to enter a WEBi report link with sso.

     today we have sso to bi launchpad.

     but when we genreate the link we are getting the user name and password screen,

     we wish to skip it,

     i read most of the links like : http://help.sap.com/businessobject/product_guides/boexir4/en/xi4_opendocument_en.pdf

but i do not have any full code example,

please help,

tomer