function cookieSet(name, value, expires, path, domain, secure) {
 var today = new Date();
  today.setTime(today.getTime());
  if(expires) { expires *= 86400000; }
  var expires_date = new Date(today.getTime() + (expires));
  document.cookie = name + "=" + escape(value)
    + (expires ? ";expires=" + expires_date.toGMTString() : "")
    + (path ? ";path=" + path : "")
    + (domain ? ";domain=" + domain : "")
    + (secure ? ";secure" : "");
}

function cookieGet(name) {
  var start = document.cookie.indexOf(name + "=");
  var len = start + name.length + 1;
  if((!start) && (name != document.cookie.substring(0, name.length))) {
    return null;
  }
  if(start == -1) {return null;}
  var end = document.cookie.indexOf(";", len);
  if(end == -1) {end = document.cookie.length;}
  return unescape(document.cookie.substring(len, end));
}

function cookieDel(name, path, domain) {
  document.cookie = name + "="
    + (path ? ";path=" + path : "")
    + (domain ? ";domain=" + domain : "")
    + ";expires=Thu, 01-Jan-1970 00:00:01 GMT";
}
function cookieAppend(name,value)
{
	if(cookieGet(name)!=null)value=cookieGet(name)+value;
	cookieSet(name,value);
}