function getCookie(c_name)
{
if (document.cookie.length>0)
  {
  c_start=document.cookie.indexOf(c_name + "=");
  if (c_start!=-1)
    {
    c_start=c_start + c_name.length+1;
    c_end=document.cookie.indexOf(";",c_start);
    if (c_end==-1) c_end=document.cookie.length;
    return unescape(document.cookie.substring(c_start,c_end));
    }
  }
return "";
}

  var lastvisit = getCookie('7lastvisit');
  var exdate=new Date();
  var ms = exdate.getTime();
  var timeSeconds = parseInt(ms/1000);
  if (!lastvisit || (timeSeconds - lastvisit) > 86400)
  {
     genLayer('myLayer', 0, 0, 700, 0, showName);
  }