function show(obj){
	document.getElementById(obj).style.display = 'block';

}
function hidden(obj){
	document.getElementById(obj).style.display = 'none';
}
function show_qq() {
	document.writeln("<ul><li class=\"first\">在线客服</li>");
	if( qq.length > 0){
		document.writ
		for(var i=0; i<qq.length; i++){
			document.writeln("<li><a target=\"_blank\" href=\"tencent://message/?uin=" + qq[i] + "&site=在线客服&menu=yes\"><img src=\"http://wpa.qq.com/pa?p=1:"+qq[i]+":3\" alt=\"点击这里给我发消息\" /></a></li>");
		}
	}
	document.writeln("</ul>");
}