Panels as pop-up windows (Date Time picker)...

Hello, Folks!
I am using a panel instead of a JavaScript pop-up window to allow some one t
o select a date and time. However, when the panel appears it is obscured by
some other Web control objects. I have attempted to give the panel a z-ind
ex of 10 and the other contols of -1 but it does nothing!
Does anyone know how to get this panel to appear on top of all the other obj
ects when it's visible?
TIA...
P.S. I am just using IE 6 (company intranet).It is not possible to make the panel appear over "windowed" form
elements like combo boxes... The only way to do it is enhance the
popup javascript to hide the combo boxes if the panel appears over the
top. Or you can look at using something other than Panel. IE has an
actual "Popup" object you can use that will always be on top of
everything...