var red_bg = new Image(183,400);
red_bg.src = "/img/orange_bg.jpg";

var right_arrow = new Image(2,3);
right_arrow.src = "/img/right_arrow.gif";

 

 
function show_nav(id){
				hide_all;
				var nav_aux_container = document.getElementById('nav_aux_container').style.display="block";
				var list = document.getElementById(id);
				
				list.style.display="block";
				
				
			
				var select = document.getElementById(id+'_select');
				select.style.background='#e99619 url(\'img/right_arrow.gif\') 115px 15px no-repeat'; 
				select.style.cursor='pointer';
				
			
			}
function hide_all(){
				var nav_aux_container = document.getElementById('nav_aux_container').style.display="none";
				var nav_aux = document.getElementById('nav_aux');
				var lists = nav_aux.getElementsByTagName('ul');
				for(var x=0; x<lists.length; x++){
					lists[x].style.display="none";
				}
				var nav_main = document.getElementById('nav_main');
				var select =nav_main.getElementsByTagName('li');
				for(var y=0; y<select.length; y++){
					
				
				select[y].style.background=''; 
				}
}