How to prevent a layer from being displayed even if the page is refreshed after it is closed. Unless the page is closed and opened again_javascript tips

<meta http-equiv="Content-Type" content="text/html; charset=gb2312"> <title>After a layer is closed, it will not be displayed even if the page is refreshed. Unless the page is closed and opened again </title> <style type="text/css"> #myDiv{ border:1px solid red; background:#cccccc; width:100px; height:100px; } #mySpan{ cursor:pointer; } </style> <div id="myDiv"> <span onclick="closeDiv()" id="mySpan"></span>Close</div>