Last time a user logged on

Hi!

I'm using EP 5 sp 6 and we are using the CM module to show news on our intranet. We wont to have a different color on the news items that are new since last time the user logged on to the portal. Therefor i'm wondering if it is any possibility to get this information in the XSL file which I'm using for showing the content. We are using the standard XMLForm iview.

Hope someone can help me!

Regards, Anders