It doesn't matter if an image is surrounded by a web page...you can retrieve just the image and display it in Xlobby.
Here is an example:
1) Go to this link:
http://weather.noaa.gov/radar/latest/DS.p19r0/si.kcle.shtml
You will see a Columbus area radar map on the page.
1) Right click on it and a menu will appear.
2)Select "PROPERTIES'
3)This will bring up the URL of the radar image itself.
4)That is the URL you supply to Xlobby in order to display just the radar image.
Click the following link (which is the URL you will get following the steps above) to see an example of how it works:
http://weather.noaa.gov/radar/images/DS ... latest.gif
You see the same radar image as in the first link, but just the image.
-badabing