function tab01Show(){
var cn01 = document.getElementById('tab01_content');
var cn02 = document.getElementById('tab02_content');
if(cn01.style.display == "block"){
	cn01.style.display = "block";
	cn02.style.display = "none";
}else{	cn02.style.display = "none";
	cn01.style.display = "block";
}
}

function tab02Show(){
var cn01 = document.getElementById('tab01_content');
var cn02 = document.getElementById('tab02_content');
if(cn01.style.display == "block"){
	cn02.style.display = "block";
	cn01.style.display = "none";
}else{	cn01.style.display = "none";
	cn02.style.display = "block";
}
}