function setCookie(name, value, lifetime, path, domain, secure)
{
  lifetime = new Date(Date.parse(new Date())+lifetime*1000);
  document.cookie = name+"="+escape(value)+
    (lifetime ? "; expires="+lifetime.toGMTString() : "")+
    (path    ? "; path="   +path   : "")+
    (domain  ? "; domain=" +domain : "")+
    (secure  ? "; secure" : "");
}


function getCookie(cookieName){
	results = document.cookie.match ( '(^|;) ?' + cookieName + '=([^;]*)(;|$)' );
	if ( results )
    		return ( unescape ( results[2] ) );
  	else
      		return '';
}

function delCookie(name, path, domain)
{
  if (getCookie(name))
    setCookie(name, "", -1, path, domain);
}