function setUL(id){
	var ul = document.getElementById(id);
	

	
	 if(ul.style.visibility == 'visible'){
	 	ul.style.visibility = 'hidden';  
		ul.style.display = "none";	
		
	 }
	 else{   
		ul.style.visibility = 'visible'; 
		ul.style.display = "block";	
	 } 
}