JavaScript判断qq是否在线

<!--判断QQ是否在线，显示相应图片-->
<script>
var online= new Array();
</script>
<script src="http://wpa.qq.com/getonline?Type=1&QQ1号:"></script>
<script>
if (online[0]==0)
document.getElementById("QQ1").src="images/qq2.gif";
else
document.getElementById("QQ1").src="images/qq1.gif";
</script>
<script src="http://wpa.qq.com/getonline?Type=1&QQ2号:"></script>
<script>
if(online[0]==0)
document.getElementById("QQ2").src="images/qq2.gif";
else
document.getElementById("QQ2").src="images/qq1.gif";
<