// Text AD ·¹ÀÌ¾î ¿Â.¿ÀÇÁ
function ad_show(ad){
  document.all["ad_layer" + ad].style.left = (event.x-80) + document.body.scrollLeft;
  document.all["ad_layer" + ad].style.top = event.y + document.body.scrollTop;
  document.all["ad_layer" + ad].style.visibility = "visible";
}
function ad_hide(ad){
  document.all["ad_layer" + ad].style.visibility = "hidden";
}