Edit in JSFiddle

<!DOCTYPE html>
<html lang="ko">
<head>
<meta http-equiv="Content-Type" content="text/xhtml+xml;charset=utf-8" />
<script src="http://code.jquery.com/jquery-1.11.3.min.js"></script>
<script>
	//쿠키설정	
	function setCookie( name, value, expiredays )
	{
    var todayDate = new Date();
    todayDate.setDate( todayDate.getDate() + expiredays );
    document.cookie = name + '=' + escape( value ) + '; path=/; expires=' + todayDate.toGMTString() + ';'
	}

	//쿠키 불러오기
	function getCookie(name) 
	{ 
	    var obj = name + "="; 
	    var x = 0; 
	    while ( x <= document.cookie.length ) 
	    { 
	        var y = (x+obj.length); 
	        if ( document.cookie.substring( x, y ) == obj ) 
	        { 
	            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 ""; 
	}
		
	//닫기 버튼 클릭시
	function closeWin(key)
	{
	    if($("#todaycloseyn").prop("checked"))
	    {
	        setCookie('divpop'+key, 'Y' , 1 );
	    }
	    $("#divpop"+key+"").hide();
	}
  
	$(function(){	

		if(getCookie("divpop1") !="Y"){
			$("#divpop1").show();
		}

	});
</script>
<style>
  .divpop {
  	position: absolute; z-index:999; top:50px; left:50px;
  	width:350px; height:500px; border:1px solid black;background-color:yellow;display:none;
  }
  .title_area {font-weight:bold;text-align:center;width:100%}
  .button_area {position:absolute;bottom:0;left:10px;} 
</style>
</head>
<body>
<form name="notice_form">
	<div id="divpop1" class="divpop">	
		<div class="title_area">레이어 팝업 오늘 하루 이창을 열지 않음</div>
 		<div class="button_area">
	 		<input type='checkbox' name='chkbox' id='todaycloseyn' value='Y'>오늘 하루 이 창을 열지 않음	
 			<a href='#' onclick="javascript:closeWin(1);"><B>[닫기]</B></a>
 		</div>
	</div>
</form>
</body>
</html>