title: link dont scroll to top of page issue
body: <p>i need some help, please... I got a affixed menu on my page, and i want to when i click on any item of it, the page scrolls back to the top, i would use an anchor, but i already use it to call the pages on each button...</p>
  
  <p>this is my code</p>
  
  <pre><code>&lt;div class="span1 menu"&gt;
      &lt;ul class="nav"&gt;
      &lt;li id='gostou' class='menufixo' title="gostou do filme?"&gt;&lt;a href="#resumo" data-toggle="tab" class="link"&gt;&lt;/a&gt;&lt;/li&gt;
      &lt;li id='evolucao' class='menuacao' title="evolução"&gt;&lt;a href="#graficos" data-toggle="tab" class="link"&gt;&lt;/a&gt;&lt;/li&gt;
      &lt;li id='comentarios' class='menuacao' title="comentários"&gt;&lt;a href="#mensagens" data-toggle="tab" class="link"&gt;&lt;/a&gt;&lt;/li&gt;
      &lt;li id='info' class='menuacao' title="informações"&gt;&lt;a href="#infos" data-toggle="tab" class="link"&gt;&lt;/a&gt;&lt;/li&gt;
      &lt;li id='assistir' class='menuacao' title="cinemas"&gt;&lt;a href="#tab-assistir" data-toggle="tab" class="link"&gt;&lt;/a&gt;&lt;/li&gt;
      &lt;li id='tags' class='menuacao' title="cloud tags"&gt;&lt;a href="#cloudtags" data-toggle="tab" class="link"&gt;&lt;/a&gt;&lt;/li&gt;
      &lt;div class='ferramentas'&gt;&lt;/div&gt;
      &lt;script&gt;
      $(".menu ul").on("click", "li", function()
          {
              $(this).parent().find("li").removeClass("menufixo").addClass("menuacao");
              $(this).toggleClass("menufixo").toggleClass("menuacao");
          });
      &lt;/script&gt;
      &lt;/ul&gt;
      &lt;/div&gt;
  </code></pre>
  
  <p>Thanks in advance!!</p>