From Bugzilla Helper: User-Agent: Mozilla/5.0 (Macintosh; U; PPC; en-US; rv:0.9.8+) Gecko/20020216 BuildID: 2002021608 Go to http://www.bayarea.com/mld/mercurynews/. The pulldown menus work as expected i.e. the pulldown are on top of the Mercury News gif. Go to a story where the logo is replaced with an add. Now the menus pulldown behind the add. I think the add looks like: <a target="_top" href="http://krd.realcities.com/event.ng/Type=click&FlightID=3037&AdID=3995&TargetID=662&Segments=5,36,635,719,723,1330,1480,1629,1666,1720,1914&Targets=602,1,662,102,191,907,1035,1460&Values=30,46,50,61,73,80,91,101,110,132,150,195,206,207,296,354,389,405,466,2488,2507&RawValues=&Redirect=http:%2F%2Fwww.colonize.com%2Fp%2Fa.php%3Fa%3Dy001001163" Reproducible: Always Steps to Reproduce: 1. Go to http://www.bayarea.com/mld/mercurynews/ 2. Click on a story 3. Pulldown one of the menus Actual Results: Menu pullsdown behind add. Expected Results: Menu pullsdown over add. <a target="_top" href="http://krd.realcities.com/event.ng/Type=click&FlightID=3037&AdID=3995&TargetID=662&Segments=5,36,635,719,723,1330,1480,1629,1666,1720,1914&Targets=602,1,662,102,191,907,1035,1460&Values=30,46,50,61,73,80,91,101,110,132,150,195,206,207,296,354,389,405,466,2488,2507&RawValues=&Redirect=http:%2F%2Fwww.colonize.com%2Fp%2Fa.php%3Fa%3Dy001001163"

A better url is http://www.bayarea.com/mld/mercurynews/2688002.htm could be related to bug 118474

The ad is an iframe. Duplicate of "IFRAMEs do not respect z-index of other, non-iframe content" *** This bug has been marked as a duplicate of 91516 ***