function checkemail (email) {
  var goodEmail = email.match(/^[_a-z0-9-]+(\.[_a-z0-9-]+)*@[a-z0-9-]+(\.[a-z0-9-]+)*(\.[a-z]{2,4})$/gi);
  if (goodEmail == email) return true;
	return false;
}	

flag=1;
function getCookie(NameOfCookie){
    if (document.cookie.length > 0) {              
    begin = document.cookie.indexOf(NameOfCookie+"=");       
    if (begin != -1) {           
      begin += NameOfCookie.length+1;       
      end = document.cookie.indexOf(";", begin);
      if (end == -1) end = document.cookie.length;
        return unescape(document.cookie.substring(begin, end));
    } 
  }
  return null;
}

function setCookie(NameOfCookie, value, expiredays) {
var ExpireDate = new Date ();
ExpireDate.setTime(ExpireDate.getTime() + (expiredays * 24 * 3600 * 1000));

  document.cookie = NameOfCookie + "=" + escape(value) + 
  ((expiredays == null) ? "" : "; expires=" + ExpireDate.toGMTString()) + "; path=/";
}

function delCookie (NameOfCookie) {
  if (getCookie(NameOfCookie)) {
    document.cookie = NameOfCookie + "=" +
    "; expires=Thu, 01-Jan-70 00:00:01 GMT";
  }
}

function newsletter()
{
 if (flag== 1) {
  visited=getCookie('visited');
  if (visited==null) 
  {
 setCookie('visited','yes',7)
 newwin=window.open('http://www.afunworld.com/a/email.php','newsletter','toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbars=no,resizable=no,width=450,height=200,left=1,top=1');
  }
 }
}