Generate logon cookie with ICF service

Hello,

Does somebody know of a way to generate a logon cookie (MYSAPSSO2), while calling an ICF service in the browser ?

I need the cookie to be generated while the username and password are filled in the ICF service.

If I do not specify a username and password in the ICF service and I enter the credentials in the prompt that is issued when I call the service, the logon cookie is generated.

I tried different logon procedure methods within the ICF service, but with no success so far.

Thank you,
Catalin