RadComboBox fully supports overlay. Its drop-down can hover over windowed objects
(ASP.NET dropdownlists and/or flash movies). In addition, RadComboBox is not rendered
as a windowed object, so DHTML content can hover the RadComboBox when needed.
This functionality is enabled by default. No property should be set to enable the feature.
Please use the configuration panel to explore the different types of animations. To observe the overlay result over the DropDownList
and the flash object, please open the RadComboBox.