IE6 z-index Bug

IE6 treats z-indexs wrong on absolute and relative positioned elements. This fixes that.

If you have a drop down menu in your header, and the menus from it are going behind the content when they drop down, put the following code in your CSS, making sure to put whichever div has the drop downs in it at a z-index above that of the content it's going behind. This will cause the menu to go front of the content.