배너/팝업스크립트좀 알려주세요 채택완료

<form name="notice_form">
<div id="top_popup">
   <div class="popup_msg"><input type="checkbox" name="chkbox" value="checkbox" checked="checked" style="display:none;"/>자세히보기
     <p onclick="javascript:closeWin();">닫기</p>
   </div>
</div>
</form></p>
<p>
<script type="text/javascript">
function setCookie( name, value, expiredays ) {
   var todayDate = new Date();
   todayDate.setDate( todayDate.getDate() + expiredays );
   document.cookie = name + "=" + escape( value ) + "; path=/; expires=" + todayDate.toGMTString() + ";"
}
function closeWin() {
   if ( document.notice_form.chkbox.checked ) {
      setCookie( "maindiv","done",1 );
   
   }</p>
<p>   document.getElementById('top_popup').style.overflow = "hidden";
}</p>
<p>cookiedata = document.cookie;
if (cookiedata.indexOf("maindiv=done") < 0 ) {
   document.getElementById('top_popup').style.height = "50px";
} else {
   document.getElementById('top_popup').style.height = "0px";
   document.getElementById('top_popup').style.overflow = "hidden";
   document.getElementById('top_popup').style.display = "none";
}
</script></p>
<p><script type="text/javascript">
<!--
 $(function(){
  $('.popup_msg > p').click(function(){
   $('#top_popup').slideUp(800) });
 });
//-->
</script></p>
<p>