As you can see on http://tinyurl.com/yjyuhab, my menu when highlighted is hidden by the slider, I tried adding a z-index property but it’s useless, any suggestions?
Hi, on #mygallery you set a z-index of 5, so just set position:relative;z-index:6; on “#menu” 
There are also 2 z-indexes on #menu li ul{
display:none;
left:200px;
position:absolute;
top:0px;
z-index:2;
z-index: 1;
}