var name = get_cookie('yellboxname');
  if(name == null)name = 'Name'; 
  function set_cookie(){ name = document.yellform.sub_name.value; document.cookie = "yellboxname=" + escape(name) + "; expires=26/03/2088 00:00:00"; }
  function get_cookie(cookie_name){ var results = document.cookie.match ( '(^|;) ?' + cookie_name + '=([^;]*)(;|$)' ); if(results)return(unescape( results[2])); else return null; }  
  document.write('<input name="sub_name" value="' + name + '" maxlength="10" onfocus="if(this.value == \'Name\')this.value = \'\';" /><br />');