function start_stat()
{
	var stat_iframe = "<iframe marginWidth=0 marginHeight=0 frameBorder=0 width=0 height=0 src=";
	var stat_url = "http://stat.lein.cn/lein_stat.php?";
	stat_url +='c='+window.location.href;
	stat_url += '&r='+document.referrer;
	stat_url += '&un_code='+un_code;
	stat_url += '&stat_type='+stat_type;
	stat_url += '&scan_id='+scan_id;
	stat_iframe+=stat_url+"></iframe>";
	//alert(stat_iframe);
	document.write(stat_iframe);
}
start_stat();