var objLayer;
var isNS = navigator.appName == "Netscape";
var isNS4 = (document.layers ? true : false);
var isIE4 = ((document.all && !isDOM) ? true : false);
var isDOM = (document.getElementById ? true : false); 

// http://www.nicebell.co.kr/card/carddata/C_type/C1200472.swf
function getRefObject(id) {
	if (isDOM) return document.getElementById(id);
	if (isIE4) return document.all[id];
	if (isNS4) return document.layers[id];
}
function viewSlideLayer(strLayer) {
	if (isNS4) {
		objLayer = document[strLayer];
		objLayer.top = top.pageYOffset + 30;
	} else if (isDOM) {
		objLayer = getRefObject(strLayer);
		objLayer.style.top = (isNS ? window.pageYOffset : document.body.scrollTop) + 30;
	}
		objLayer.style.visibility = "visible";
		slideingLayer();
}
function slideingLayer() {
	var setPaddingTop = 105;		// À§ÂÊ À§Ä¡
	var timeoutNextCheck = 1;		// ¹ÝÀÀ ¼Óµµ
	var yMenuFrom, yMenuTo, yOffset, timeoutNextCheck;

	if (isNS4) {
		yMenuFrom	= objLayer.top;
		yMenuTo	= windows.pageYOffset + setPaddingTop;
	} else if (isDOM) {
		yMenuFrom	= parseInt (objLayer.style.top, 10);
		yMenuTo	= (isNS ? window.pageYOffset : document.body.scrollTop) + setPaddingTop;
	}

	if (yMenuFrom != yMenuTo) {
		yOffset = Math.ceil(Math.abs(yMenuTo - yMenuFrom) / 50);
		if (yMenuTo < yMenuFrom)
			yOffset = -yOffset;
		if (isNS4)
			divMenu.top += yOffset;
		else if (isDOM)
			objLayer.style.top = parseInt (objLayer.style.top, 10) + yOffset;
//			timeoutNextCheck = 20;
	}
	setTimeout ("slideingLayer()", timeoutNextCheck);
}