This method is called when the title of the current document
is available or has changed.
<p>
<p>The following fields in the <code>TitleEvent</code> apply:
<ul>
<li>(in) title the title of the current document
<li>(in) widget the <code>Browser</code> whose current document's
title is known or modified
</ul>
@param event the <code>TitleEvent</code> that contains the title
of the document currently displayed in a <code>Browser</code>
This method is called when the title of the current document is available or has changed. <p>
<p>The following fields in the <code>TitleEvent</code> apply: <ul> <li>(in) title the title of the current document <li>(in) widget the <code>Browser</code> whose current document's title is known or modified </ul>
@param event the <code>TitleEvent</code> that contains the title of the document currently displayed in a <code>Browser</code>
@since 3.0