Fixed Header not properly working

Question

I want to create a fixed header for my website. This is currently what I have: http://www.hidesertheat.com/test/index.html

I need the header to appear over my slider. What am I missing? I can't seem to figure it out.

Answer 1

Give z-index property for the class ' header_menu '. I checked in firebug with following property and worked fine.

.header_menu{
   z-index: 999;
}