This page use javascript to be the login button,
I don't know how to deal with it.
<ul class="list all"><li class="item item-1 item-odd"><a class="thumbnail" href="http://www.xanga.com" title="Xanga.com - The Blogging Community"><img src="http://s.xanga.com/images/mainlogo.gif" alt="Xanga.com - The Blogging Community" /></a><div class="details"><div class="itembody"><a href="http://www.xanga.com/register.aspx"><strong>What is Xanga?</strong> Xanga is a community where you can start your own free weblog, share photos and videos, and meet new friends, too! <em>Click Here to Get Started »</em><span class="talkarrow"></span></a></div></div></li></ul>
<div class="extra"></div>
</div>
</div>
<div class="module module-custom module-signin-box" id="module--95">
<div class="modulecontent">
<form id="SigninForm" class="Form1" method="post" action="http://holly-hahaha.xanga.com/XangaLock.aspx?user=holly_hahaha&ReturnUrl=http://holly-hahaha.xanga.com/home.aspx%3fuser%3dholly_hahaha%26nextdate%3d10/21/2005">
<input name="IsPostBack" type="hidden" id="IsPostBack" />
<ul class="list details-only">
<li class="item item-1 item-odd">
<div class="details">
<h4 class="itemtitle"><label for="XangaHeader_txtSigninUsername">Username</label></h4>
<div class="itembody">
<input name="XangaHeader$txtSigninUsername" type="text" id="XangaHeader_txtSigninUsername" maxlength="100" onmouseover="this.className='over';" onmouseout="this.className='';" onfocus="this.className='over';" onblur="this.className='';" tabindex="1" />
</div>
</div>
</li>
<li class="item item-2 item-even">
<div class="details">
<h4 class="itemtitle"><label for="XangaHeader_txtSigninPassword">Password</label></h4>
<div class="itembody">
<input name="XangaHeader$txtSigninPassword" type="password" id="XangaHeader_txtSigninPassword" maxlength="16" onkeypress="return SigninOnEnter(event);" onmouseover="this.className='over';" onmouseout="this.className='';" onfocus="this.className='over';" onblur="this.className='';" tabindex="2" />
<a id="signin" href="javascript: SigninSubmit();" tabindex="3">Sign In</a>
</div>
</div>
</li>
</ul>