LXMenu behind Thumbs Phocagallery

[Kay]

Hi,

was checking topic with JA-Purity Menu behind the pics. Solution was z-index and deleting position:relative.
That is not working with LXMenu and phocagallery and IE6+. Firefox, Safari, Chrome - working perfect.

Is there any other solution? Maybe change the order of the HTML-Source? How can I do this?

Thanks for Ideas and good day from Namibia.