title: Input box does not show default value
body: <p>I have an email box in which I like to show a default value with "enter your email"</p>
  
  <p>Herefore I created an email box in HTML:</p>
  
  <pre><code>&lt;p&gt; Email: &lt;br /&gt; &lt;input type="email" size="30"/&gt; &lt;/p&gt;
  </code></pre>
  
  <p>An the following jQuery:</p>
  
  <pre><code>$(document).ready(function(){
      var default = "Please enter your email adress;
  
      $("input").attr("value", default);
  });
  </code></pre>
  
  <p>It does not show up however. Anybody suggestions what I'm doing wrong?</p>