Dynamic image display (based on variable attribute) in Web application?

Hi experts,

I am using a Web Template (from the Web application designer) based on a BEx Query.

This web template displays a logo (jpg image) and the report.

Is there a way to add another image to my web app and having the right logo displayed depending on a characteristic (sales organization for example) chosen in the variable screen (before the first rendering)?

Thanks for your help.

Points will be given to useful answers.

Cheers,

Olivier