function setCookie(){
	name=arguments[0];
	value=arguments[1];
	expires=(arguments.length>2?"; expires="+arguments[2].toUTCString():'');
	path=(arguments.length>3?arguments[3]:'/');
  var curCookie = name+"="+escape(value)+expires+"; path="+path;
  document.cookie = curCookie;
}

function getCookie(name) {
  var dc = document.cookie;
  var prefix = name + "=";
  var begin = dc.indexOf("; " + prefix);
  if (begin == -1) {
    begin = dc.indexOf(prefix);
    if (begin != 0) return null;
  } else
    begin += 2;
  var end = document.cookie.indexOf(";", begin);
  if (end == -1)
    end = dc.length;
  return unescape(dc.substring(begin + prefix.length, end));
}