Neopets delete read emails

neopets-delete-read.user.js

// ==UserScript==
// @name         Delete read
// @namespace    http://tampermonkey.net/
// @version      0.2
// @description  try to take over the world!
// @author       You
// @match        ://www.neopets.com/neomessages.phtml*
// @grant        none
// ==/UserScript==

(function() {
    var btn = $("<a href='#'><b>Delete read</b></a>").click(function(){
$("input[name='checkbox_arr[]']").each(function(){
$(this).prop('checked', $(this).parent().siblings().last().text() == 'Read');
});
		$("option[value='Delete Messages']").parent().val('Delete Messages');
		$("form[action='modify_neomessages.phtml']").submit();
	return false;
	})
$("a[href='/listgreetings.phtml']").parent().append('| ').append(btn);
})();