title: jQuery .focus() is highlighting all pre-filled text
body: <p>HTML</p>
  
  <pre><code>&lt;input id="formloginusername" type="text" name="username" placeholder="Username" value="Pre-filled-from-database"&gt;&lt;/input&gt;
  </code></pre>
  
  <p>JS:</p>
  
  <pre><code>$(document).ready(function() {
      $("#formloginusername").focus();
  });
  </code></pre>
  
  <p>Problem: </p>
  
  <p>The text "Pre-filled-from-database" is highlighted. I only want the cursor to show in the field as if the user had clicked it after the filled text.</p>
  
  <p>Thanks!</p>