Please check http://www.visionsimulations.com/portal/index.htm
When the page loads, drop down one of the menus in the bottom frame. Now mouseover the picture buttons in the top frame. Notice that the menu in Iframe at the bottom flickers. I don't want this to happen. I want to turn off the menu in the bottom Iframe on mouseout. But I don't know that it's my pages that are displayed in the Iframe, since this is a portal page. So I think I need to detect this event from inside the page displayed in the Iframe. But how?