Sometimes pages have objects such as select boxes, flash objects, iframes, applets, etc. These objects always have a higher
z-order, so DHTML objects (e.g. submenus) are shown under them.
Deluxe Menu can drop down submenus over all the objects of the page. If for some reasons a submenu can't drop down over
an object the latter will be hidden for a time when the submenu is shown.
To enable checking of intersection with selects, iframes, flash movies, set the following menu parameter: