这个表单的按钮，如何用webbrowser来点击啊

这个表单的按钮，如何用webbrowser来点击啊
第一个按钮是下面这个页面里面的，Answer this Question这个按钮，
这个按钮其实是个连接，，你看看该如何点击啊。
下面是这个页面的代码：把这个代码保存成html文件，打开后会看到Answer this Question这个按钮，蓝色的，该如何点击啊下面还有一个按钮，我写回复里面<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
<html lang="en-us" dir="ltr">
  <head>
    <meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<meta http-equiv="Imagetoolbar" content="">
    <meta name="description" content="OK so00o basicallly. I have this best friend and l...">
<meta name="keywords" content="yahoo, answers,  questions, Lesbian, Gay, Bisexual, and Transgendered">
<meta name="title" content="Best Friend&#039;s mom thinks I turned him bi? - Yahoo! Answers">
    <title>Best Friend&#039;s mom thinks I turned him bi? - Yahoo! Answers</title>
    <link rel="shortcut icon" href="http://l.yimg.com/us.yimg.com/i/us/sch/gr/answers_favicon.ico">
            <link rel="alternate" type="application/rss+xml" title="Yahoo! Answers: Answers and Comments for Best Friend&#039;s mom thinks I turned him bi?" href="/rss/question?qid=20080707015759AAmMmhs">
        <link rel="stylesheet" type="text/css" media="screen" href="http://l.yimg.com/h/02615/css/answers-fe-us.css">
<link rel="stylesheet" type="text/css" media="print" href="http://l.yimg.com/h/02615/css/print.css">
    <script type="text/javascript" src="http://l.yimg.com/h/02615/js/answers-fe-us.js"></script>
  </head>
    <body class="c-std wide question-index">
    <script type="text/javascript">document.body.className=((document.body.className)?document.body.className+' js':'js');</script>
    <div id="yan">
      <div id="hd">
        
  
      <ul>
      <li id="yan-banner-ask"><a href="/question/;_ylt=Ajm7YPfTCVUKm6zlp4gdgcv07BR.;_ylv=3?link=ask" title="Ask a question ">Ask</a>
              </li>
      <li id="yan-banner-answer"><a href="/dir/;_ylt=AtbysZyP7evz9mcVK11VhML07BR.;_ylv=3?link=ask&amp;more=y" title="Answer a question">Answer</a>
              </li>
      <li id="yan-banner-discover"><a href="/dir/;_ylt=AtQ2RfudakewCIh_Aqyuaz307BR.;_ylv=3?link=over&amp;more=y" title="Read Best Answers">Discover</a>
              </li>
    </ul>
  </div>
          <div id="yan-header-searchbox">
          <form method="get" action="/search/search_result;_ylt=Aln.Lg9qiakANegHYsqDzqj07BR.;_ylv=3">
        <div>
          <label for="yan-p">Search for questions:</label>
          <input type="text" id="yan-p" class="textfield" name="p" size="40" value="">
          <input type="submit" class="alt-button" value="Search">
          <a href="/search/search_advance;_ylt=AklJ86Uh3MkQzTN4Skgu5hn07BR.;_ylv=3?p=">Advanced</a>
        </div>
      </form>
        <div id="yan-my-link"><a href="/my/my;_ylt=AjosfETv_IKDsJgJRh1Hzu707BR.;_ylv=3">My Profile</a></div>
  </div>
      </div>
      <div id="yan-wrap">
                              <ol id="yan-breadcrumbs">      <li><a href="/;_ylt=Aqb0ejoryYJBYuG1QmIouYP07BR.;_ylv=3">Home</a> &gt;</li>
                                          <li><a href="/dir/;_ylt=AkUincRPFfKoOAcUa23paOX07BR.;_ylv=3?link=list&amp;sid=396545454">Society &amp; Culture</a> &gt;</li>
                                  <li><a href="/dir/;_ylt=AjL3fMmfe8WLdUA8N4bMKA707BR.;_ylv=3?link=list&amp;sid=396545456">Cultures &amp; Groups</a> &gt;</li>
                                  <li><a href="/dir/;_ylt=Amg8R8BIVw0lT.NjAE7SfXL07BR.;_ylv=3?link=list&amp;sid=396546301">Lesbian, Gay, Bisexual, and Transgendered</a> &gt;</li>
                                                <li class="selected">Open Question</li>
                        </ol>
                      <div id="yan-content">
          <div id="yan-main">
  <div id="yan-question">
    <div id="profile-h9vtBBjpaa" class="profile vcard">
  <a href="/my/profile;_ylt=AhpZepuGymetyxWf7oiLO5b07BR.;_ylv=3?show=h9vtBBjpaa" class="avatar">
    <img class="photo" width="48" alt="Frizella" src="http://l.yimg.com/us.yimg.com/i/us/sch/gr2/nophoto3_48x48.gif" id="yav-0">  </a>
  <span class="user">
        <a class="url" href="/my/profile;_ylt=Au6xUbC804IPQLq0ZcO9c1_07BR.;_ylv=3?show=h9vtBBjpaa"><span class="fn" title="Frizella">Frizella</span></a>
  </span>
  
    
    <dl class="stats">
    <dt class="member">Member since:</dt>
    <dd class="member">February 09, 2008</dd>
          <dt class="total">Total points:</dt>
      <dd class="total">101 (Level 1)</dd>
      </dl>
    
        <ul class="network">
                      <li><a href="/common/util/ks-urp-xhr-handler.php?method=addFriend&amp;kid=h9vtBBjpaa&amp;curtime=1215421246&amp;.crumb=GxiV5jGXszS" class="add-contact">Add to My Contacts</a></li>
        <li><a href="/common/util/ks-urp-xhr-handler.php?method=blockUser&amp;kid=h9vtBBjpaa&amp;curtime=1215421246&amp;.crumb=GxiV5jGXszS" class="block-user">Block User</a></li>
          </ul>
  </div>    <div class="qa-container">
        <div class="hd">
                                    <h2>Open Question</h2>
                                            <a id="show-another" href="/question/nextQuestion;_ylt=AuxUSt6V55Har7KB8.SfPsL07BR.;_ylv=3?qid=20080707015759AAmMmhs&amp;cid=396546301&amp;state=open">Show me another <span>&raquo;</span></a>
                  </div>
        <h1 class="subject">Best Friend&#039;s mom thinks I turned him bi?</h1>
                  <div class="content">O to him, text, im, ANYTHING. What do I do now? she won&#039;t believe me or him when we try to explain and I miss him alot. -_-</div>
                
        <ul class="meta">
          <li><abbr title="2008-07-07 01:57:59">2 minutes ago</abbr></li>
                      <li> - 
                              <abbr title="2008-07-11 01:57:59">3 days left to answer.</abbr>
                          </li>
                  </ul>
        
        
                  <div class="cta"><a href="/question/;_ylt=Amet5ezReiY11m17Vqi6tLX07BR.;_ylv=3?link=answer&amp;qid=20080707015759AAmMmhs"><span><span><span><span>Answer this Question</span></span></span></span></a></div>
                
        <div class="utils-container">
                      <p id="yan-reportthis">
            
                              <a href="/question/report;_ylt=AvdM3dGrHADqMN1HoFLiMj707BR.;_ylv=3?qid=20080707015759AAmMmhs&amp;kid=HM1oHkDOC3A8Lk98kT6F&amp;date=2008-07-07+01%3A57%3A59&amp;.crumb=GxiV5jGXszS&amp;s=q" title="Report this question">Report Abuse</a>
                          
            </p>
                  </div>
    </div>
  </div>

解决方案 »

  1.   

    这个是第二个按钮的html代码，就是这个按钮Preview，，，没有name，没有id，，你看怎么点击用webbrowser。
    总共就是这两个按钮的点击方法
    <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd"><html>
    <head>
    <script>
    function AC_conditional_OnLoad() {
        if (typeof AC_OnLoad == "function") {
            AC_OnLoad();
        }
    }
    </script>     </dd>
    <dt>
    &nbsp;
    </dt>
    <dd style="background: #fff;">
    <em>Note: If your answer is selected as a "Best Answer," you will automatically receive an email from Yahoo! Answers notifying you of this. You may not opt-out of receiving such emails.</em>
    </dd>
        </dl>
            <div id="ks-action-box">
                <form name="best_answer_template_form_preview"><input type="button" tabindex="5" class="button" onclick="javascript:document.best_answer_template_form.best_answer_template_form_submit.click();" value="Preview" />
                </form><form name="best_answer_template_form_cancel" action="/question/"><input type="submit" class="alt-button" tabindex="6" value="Cancel" />
                <input type="hidden" name="qid" value="20080707015759AAmMmhs" /></form>
            </div>
        </div> <!-- middle -->
    </div> <!-- content -->
    </div> <!-- y-body-green-knowledge-search -->
      

  2.   

    不用点击，直接执行那段javascript
      

  3.   

    如上，试试：javascript:document.best_answer_template_form.best_answer_template_form_submit.click();