function showHide(names){
		
				container = document.getElementById("list");
				
				if (document.getElementById(names[0]).style.display == "block"){
				document.getElementById(names[0]).style.display = "none";
				}else{
				
				lists = container.getElementsByTagName("ul");
				
				for(i=0; i<lists.length; i++){
				
					lists[i].style.display = "none";
				
				}
				
				for(i=0; i<names.length; i++){
				
					obj = document.getElementById(names[i]);
					
					if (obj.style.display == "block"){
						obj.style.display = "none";
					}else{
						obj.style.display = "block";
					}
				
				}
				}
                
        }