_Eldar_,
<!DOCTYPE HTML>
<html>
<head>
<title>Untitled</title>
<meta charset="utf-8">
<style type="text/css">
</style>
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.11.0/jquery.min.js"></script>
<script>
$(function(){
var s = $('[title="Обращения автора"]');
var href = s[0].href;
var text = s[0].text;
var login = text.replace(/.*\((.*)\).*/,"$1");
var num = href.replace(/.*USER_ID=(.*)&.*/,"$1");
$('#url_login').html('<a href="/user/catalog_ID='+num+'" target="_blank">'+login+'</a>')
});
</script>
</head>
<body>
<a href="/support/?setFilter=Y&set_support_filter=1&USER_ID=12345&CLOSE=ALL" title="Обращения автора" target="_blank">(LOGIN) фио</a>
<div id='url_login'></div>
</body>
</html>