web网页上面调用qq

<a target="_blank" href="http://wpa.qq.com/msgrd?v=3&amp;uin=2812415198&amp;site=qq&amp;menu=yes"><img title="点击这里给我发消息" border="0" alt="点击这里给我发消息" width="73" height="24" src="http://wpa.qq.com/pa?p=1:2812415198:1" /></a>