function livechat(param)
{
	var url = "http://www.g4plivechat.com/ClientLogin.aspx"+param; //这里要用实际地址，含http://...
	var targetName = 'chat_'+(new Date()).getTime();			
	document.getElementById("aClientLogin").target = targetName
	document.getElementById("aClientLogin").href = url;
	//alert(url);
	window.open(''+url+'',''+targetName+'','height=200,width=200,location=no,menubar=no,resizable=yes,scrollbars=no,status=yes,titlebar=no,toolbar=no,directories=no');
}