//ΈχΣοΡΤ°ζ±ΎΡ‘Τρ

function tb1(){
  var c1=document.getElementById("lgg1");
  var c2=document.getElementById("lgg2");
  c1.className="lgg12"
  c2.style.display="block";
}

function tb2(){
  var c1=document.getElementById("lgg1");
  var c2=document.getElementById("lgg2");
  c1.className="lgg11"
  c2.style.display="none";
}