网页中出现多个相同的文本链接，怎么模拟鼠标随机点击其中一个？已解决

lsb968

高手帮帮我啊！我折腾了一个礼拜了，头都大了······
网址是：http://wenwen.soso.com/z/toupiao.htm
点击网页中的【投票】······
网页源码
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<DIV class=columnQuestion><A name=question></A>
<DIV class=question_wrap>
<H3 title=为什么我升级这么慢 alt="为什么我升级这么慢">提问：为什么我升级这么慢</H3><A class=changeBtn onclick=document.location.reload(); href="javascript:void(0);">换一道问题</A> </DIV>
<DL class=answer_wrap>
<DT>回答1：</DT>
<DD>
<DIV class=answer>每天挂2小时，，算是活跃一天，再快就得办会员了，挂1天=1.1~1.6天，要不就开超级QQ&nbsp; 还有就是使用QQ拼音<BR>半个小时到2个小时算活跃半天，2个小时以上算一天<BR>
<DIV class=op_wrap><BUTTON style="CURSOR: pointer" class="voteBtn login_require login_norefresh" type=submit wenwenid="0"></BUTTON> <SPAN>得票数：246</SPAN> </DIV></DIV>
<DIV class=pump_main></DIV>
<DIV class=user><SPAN><A class="donate thankHonor" href="/z/ShowUser.e?sp=S403663476" target=_blank>许愿池的铜币</A></SPAN>
<DIV style="DISPLAY: none" id=daren_403663476 class=daren_info_wrap onmouseover=showDaren(this) onmouseout=hideDaren(this)>
<DIV style="DISPLAY: none" class=daren_info>
<UL class=daren_info_list></UL>
<DIV class=daren_info_bottom></DIV></DIV><A class=daren_ico_junior href="/z/ExpertPlanActivity.htm" target=_blank></A></DIV><A onclick="aboutSpecialty();return false;" href="#">
<DIV class=ico_top100 title=声望排行></DIV></A><SPAN>回答采纳率:19.5%</SPAN> <SPAN>2010-05-12 22:05</SPAN> </DIV></DD></DL>
<DL class=answer_wrap>
<DT>回答2：</DT>
<DD>
<DIV class=answer>
<P _extended="true">楼主您好 我是穿越火线帮助团成员 随雲<BR _extended="true">为您解答这个问题是我的荣幸 希望您能满意</P>
<P _extended="true">&nbsp;</P>
<P _extended="true">开通年费会员</P>
<P _extended="true">最高享受1.8倍的加速</P>
<DIV class=op_wrap><BUTTON style="CURSOR: pointer" class="voteBtn login_require login_norefresh" type=submit wenwenid="1"></BUTTON> <SPAN>得票数：32</SPAN> </DIV></DIV>
<DIV class=pump_main></DIV>
<DIV class=user><SPAN><A class="donate thankHonor" href="/z/ShowUser.e?sp=S100119624" target=_blank>随 雲</A></SPAN>
<DIV style="DISPLAY: none" id=daren_100119624 class=daren_info_wrap onmouseover=showDaren(this) onmouseout=hideDaren(this)>
<DIV style="DISPLAY: none" class=daren_info>
<UL class=daren_info_list></UL>
<DIV class=daren_info_bottom></DIV></DIV><A class=daren_ico_junior href="/z/ExpertPlanActivity.htm" target=_blank></A></DIV><A onclick="aboutSpecialty();return false;" href="#">
<DIV class=ico_top100 title=声望排行></DIV></A><SPAN>回答采纳率:30.4%</SPAN> <SPAN>2010-05-12 22:05</SPAN> </DIV></DD></DL>
<DL class=answer_wrap>
<DT>回答3：</DT>
<DD>
<DIV class=answer>
<P>QQ升级要快</P>
<P>因为每天登陆2个少时只少1天是活跃</P>
<P>意思 一天只能少一天</P>
<P>要想快 会员+超级QQ</P>
<P>更快的&nbsp; 年会员+超级QQ</P>
<P>还有如果电脑上的 每天用QQ拼音打字 级数高了 也要减少天数</P>
<DIV class=op_wrap><BUTTON style="CURSOR: pointer" class="voteBtn login_require login_norefresh" type=submit wenwenid="2"></BUTTON> <SPAN>得票数：18</SPAN> </DIV></DIV>
<DIV class=pump_main></DIV>
<DIV class=user><SPAN><A class="donate thankHonor" href="/z/ShowUser.e?sp=S136350456" target=_blank>花落丶莫相離</A></SPAN>
<DIV style="DISPLAY: none" id=daren_136350456 class=daren_info_wrap onmouseover=showDaren(this) onmouseout=hideDaren(this)>
<DIV style="DISPLAY: none" class=daren_info>
<UL class=daren_info_list></UL>
<DIV class=daren_info_bottom></DIV></DIV><A class=daren_ico_junior href="/z/ExpertPlanActivity.htm" target=_blank></A></DIV><SPAN>回答采纳率:23.4%</SPAN> <SPAN>2010-05-12 22:06</SPAN> </DIV></DD></DL>
<DL class=answer_wrap>
<DT>回答4：</DT>
<DD>
<DIV class=answer><PRE>可以通过开通QQ会员和超级QQ加快升级速度每天在上一次!</PRE>
<DIV class=op_wrap><BUTTON style="CURSOR: pointer" class="voteBtn login_require login_norefresh" type=submit wenwenid="3"></BUTTON> <SPAN>得票数：6</SPAN> </DIV></DIV>
<DIV class=pump_main></DIV>
<DIV class=group_user>

只为关注

所有同样链接可以放到一个collection里啊，然后用Ramdom生成随机一个索引数，然后点击这个链接不得了