function layerPosition(){ //µû¶ó´Ù´Ï´Â ·¹À̾î
        var blayer = document.getElementById("ad_right");
        blayer.style.top = document.body.scrollTop+80;   // +90 Àº »ó´Ü¿¡¼­ ÇØ´ç Çȼ¿ ¸¸Å­ °£°ÝÀ» Áشٴ ÀǹÌ
        setTimeout("layerPosition()",100);
    }
    window.onload = function(){
        layerPosition();
	}