function  funDisplay(n){
	if( document.getElementById("answer"+n).style.display  == "none")
	   document.getElementById("answer"+n).style.display = ""; 
	else
	   document.getElementById("answer"+n).style.display = "none"; 
 }
 
 
  function  funDisplay02(){
	document.getElementById("answer1").style.display  = "";
	document.getElementById("answer2").style.display = "none"; 
 }
 
  function  funDisplay03(){
	document.getElementById("answer1").style.display  = "none";
	document.getElementById("answer2").style.display = ""; 
 }