Home Page Component: AJAX Toolkit 29.0

<!-- Include AJAX Toolkit 29.0 -->
<script src="/soap/ajax/29.0/connection.js"></script>

<!-- Set the Ajax client's session ID -->
<script type="text/javascript">

    // Get the session ID from the "sid" cookie

    var sidRegExp = /sid=([^;]+);/;
    var sidMatches = sidRegExp.exec(document.cookie);
    var sid = sidMatches[1];

    // Set the session ID for the Ajax client

    sforce.connection.sessionId = sid;
</script>