怎么实现贴子内添加分享到QQ空间、人人网、新浪微博等功能

<div class="links" onmouseover="this.className='links links_hover'" onmouseout="this.className='links'">
<div class="handle"></div>
<span class="label">转贴到:</span>
<span class="icos">
<a target="_blank" href="http://www.20199.com/" id="s_qq" charset="400-03-8" title="转发至QQ空间"><img src="http://static.youku.com/v1.0.0652/v/img/ico_Qzone.gif"></a>
<a target="_blank" href="http://www.20199.com/" id="s_renren" charset="400-03-7" title="转发至人人网"><img src="http://static.youku.com/v1.0.0652/v/img/ico_renren.gif"></a>
<a target="_blank" href="http://www.20199.com/" id="s_sina" charset="400-03-10" title="转发至新浪微博"><img src="http://static.youku.com/v1.0.0652/v/img/ico_sina.gif"></a>
<a target="_blank" href="http://www.20199.com/" id="s_mop" charset="400-03-19" title="分享到MOP"><img src="http://static.youku.com/v1.0.0652/v/img/ico_mop.gif"></a>
<a target="_blank" href="http://www.20199.com/" id="s_pengyou" charset="400-03-19" title="分享到腾讯朋友"><img src="http://static.youku.com/v1.0.0652/v/img/ico_pengyou.png"></a>
<a target="_blank" href="http://www.20199.com/" id="s_msn" charset="400-03-20" title="分享到MSN"><img src="http://static.youku.com/v1.0.0652/v/img/ico_msn.png"></a>
<a target="_blank" href="http://www.20199.com/" id="s_douban" charset="400-03-17" title="推荐到豆瓣"><img src="http://static.youku.com/v1.0.0652/v/img/ico_dou_16x16.png"></a>
<a target="_blank" href="http://www.20199.com/" id="s_qq_t" charset="400-03-16" title="分享到腾讯微博"><img src="http://static.youku.com/v1.0.0652/v/img/ico_qq_t.png"></a>
<a target="_blank" href="http://www.20199.com/" id="s_kaixin" charset="400-03-9" title="转发至开心网"><img src="http://static.youku.com/v1.0.0652/v/img/ico_kaixin.gif"></a>
<a target="_blank" href="http://www.20199.com/" id="s_feixin" charset="400-03-14" title="转发至飞信空间"><img src="http://static.youku.com/v1.0.0652/v/img/feixin_14px.png"></a>
<a target="_blank" href="http://www.20199.com/" id="s_tao" charset="400-03-18" title="分享到淘江湖"><img src="http://static.youku.com/v1.0.0652/v/img/ico_tao.png"></a>
<a target="_blank" href="htthttp://www.20199.com/" id="s_139" charset="400-03-11" title="转发至139说客"><img src="http://static.youku.com/v1.0.0652/v/img/ico_139.gif"></a>
<a target="_blank" href="http://www.20199.com/" id="s_baidu" charset="400-03-12" title="分享到i贴吧"><img src="http://static.youku.com/v1.0.0652/v/img/ico_baidu_16x16.png"></a>
<a target="_blank" href="http://www.20199.com/" id="s_tianya" charset="400-03-15" title="分享到天涯"><img src="http://static.youku.com/v1.0.0652/v/img/ico_tianya.png"></a>
<a target="_blank" href="http://www.20199.com/" id="s_163" charset="400-03-13" title="分享到网易微博"><img src="http://static.youku.com/v1.0.0652/v/img/ico_163_16.gif"></a>
</span></div>