How to change the logo on the connection page of discoverer portal

Below is a way change the logo on the connection page of discoverer portal

Go to
E:\Oracle\10gAS_BI\j2ee\OC4J_BI_Forms\applications\discoverer\discoverer\images

change logo_plus.gif to logo_plus_bak.gif and place your logo there and rename it to logo_plus.gif.

Now relogin to the Discoverer portal you will see your logo there.

Enjoy!!!