Help getting a tooltip to the top of the display list

Ok so my document class loads pictures and adds them every so interval once they’re done loading. So when the next picture loads, it will be higher on the display list than the picture previous to it(on the left). So if a child(a tooltip) of the previous picture(on the left) appears over the picture to the right, the tooltip will always appear underneath that following picture, since the tooltip is a child of the previous picture.

how do i get it to appear above everything? (addChildAt won’t work) . i need a quick fix, is there a way to get my document class to add that tooltip ?

or is the only way to build some sort of displayObject Handler class (please no).