function setCookie(name, value, expires) {
	var todayDate = new Date(); 
	todayDate.setDate(todayDate.getDate() + expires);

	document.cookie = name + "=" + escape (value) + "; path=/; domain="+document.domain+"; expires=" + todayDate.toGMTString();
}

function getCookie(name)
{
	var nameOfCookie = name + "=";
	var x = 0;
	while (x <= document.cookie.length)	// 쿠키가 설정되어 있다면
	{
		var y = (x+nameOfCookie.length);
		if (document.cookie.substring(x, y) == nameOfCookie)
		{
			if ((endOfCookie = document.cookie.indexOf(";", y)) == -1)
				endOfCookie = document.cookie.length;
					
			return unescape(document.cookie.substring(y, endOfCookie));
		}
		
		x = document.cookie.indexOf( " ", x ) + 1;
		
		if (x == 0)
			break;
	}
	return "";
}

function Layer_Pop()
{
	if(getCookie("Open_Mpeg") != "done"){
		MpegLayer(430, 484);
	}
}

function MpegLayer(pwidth, pheight) {
	var target1 = document.getElementById("CloseLayer");

	target1.style.left = ((document.documentElement.clientWidth/2) - (pwidth/2)) + "px";
	target1.style.top = ((document.documentElement.clientHeight/2) - (pheight/2)) + "px";

	if(target1.style.display == "none")	{
		target1.style.display = "block";
	}
	else {
		target1.innerHTML = '';
		target1.style.display = "none";
	}
}