Add class to the result returned from an add function : add « jQuery « JavaScript Tutorial

<html>
  <head>
    <script type='text/javascript' src='js/jquery-1.3.2.js'></script>
    <script type='text/javascript'>
var tmpExample = {
  ready : function() {
    $('ul#liClass1 li').add('ul#liClass3 li').addClass('justAdd');
  }
};

$(document).ready(tmpExample.ready);
    </script>
    <style type='text/css'>
body {
    font: 16px sans-serif;
}
h3 {
    font-size: 18px;
    margin: 0 0 5px 0;    
}
h4 {
    font-size: 16px;
    margin: 5px 0;
}
ul {
    list-style: none;
    margin: 0;
    padding: 0;
}
ul li {
    margin: 1px;
    padding: 3px;
}
li.justAdd {
    background: #88fac6;
}
    </style>
  </head>
  <body id='tmpExample'>
    <ul id='liClass1'>
      <li>A</li>
      <li>B</li>
      <li>C</li>
      <li>D</li>
    </ul>
    <ul id='liClass2'>
      <li>E</li>
      <li>F</li>
      <li>G</li>
      <li>H</li>
    </ul>
    <ul id='liClass3'>
      <li>I</li>
      <li>J</li>
    </ul>
  </body>
</html>

30.12.add
	30.12.1.	Add tag returned from document.getElementById
	30.12.2.	add(expr): adds more elements
	30.12.3.	Adds one or more Elements to the set of matched elements(document.getElementById)
	30.12.4.	Add class to the result returned from an add function