function login()
{
	var url="http://www.nbdl.gov.cn/abo/login/login.action?backurl="+escape(location.href);
	window.top.location.href=url;
}

function regist()
{
	var url="http://www.nbdl.gov.cn/abo/reg/register.action?backurl="+escape(location.href);
	window.top.location.href=url;
}
function lgout()
{
	var url="http://www.nbdl.gov.cn/abo/logout.jsp?backUrl="+escape(location.href);
	window.top.location.href=url;
}