JavaScript DHTML/Event onMethod/onBeforeDeactivate
"onBeforeDeactivate" Example
<source lang="html4strict">
<html> <body>
Press tab to bring the following link into focus.
<a id="myL" href="http://www.wbex.ru/" target=_blank onbeforedeactivate="alert("focus")"> wbex.ru </a>
<html>
</source>