JIRA 'w' keyboard shortcut for watch/unwatch issue

jira.user.js

// ==UserScript==
// @name        Jira
// @namespace   http://students.mimuw.edu.pl/~findepi
// @version     1
// @include	http://match-nothing.example.com
// @grant	none
// ==/UserScript==

jQuery(function($) {
	var log = ((window.console && typeof window.console.log == "function")
		? window.console.log : function() {})
	
	// disable log
	log = function() {}

	log("Jira improvements are being installed")

	// Bind 'w' as 'watch'
	$(document).keydown(function(e) {
		if (e.which != 'W'.charCodeAt(0)) {
			// Not 'w', ignore
			//log(["not 'w'", e.which])
			return
		}
		// log("it's w")
		if (e.altKey || e.shiftKey || e.ctrlKey || e.metaKey) {
			// 'w' pressed with modifier, ignore
			//log("'w' with modifier")
			return
		}
		if ($(e.target).is("input, textarea, select")) {
			// pressed inside input, textarea, select; ignore
			return
		}
		log(["'w' pressed", e])

		var wButt = $('#watching-toggle')
		  , nowWatching = wButt.is('.watch-state-off')

		wButt.click()
			.parent().parent()
			.css({outline: '5px solid orange'})
			.animate({outlineWidth: 0}, 'fast')

		$('.watching-notif').remove()
		$('<span/>').text(nowWatching ? 'Watching' : 'Not watching')
			.addClass('watching-notif')
			.prependTo(document.body)
			.css({
				position: 'fixed', 'top': 5, 'right': 5, zIndex: 100000
				, background: (nowWatching ? '#CDEB8B' : '#faa')
				, border: '2px solid black'
				, borderRadius: '5px'
				, boxShadow: '0 0 15px 0px #ccc'
				, padding: '10px'
				, fontSize: '15px'
				, fontWeight: 'bold'
				, display: 'none'
			}).fadeIn('fast')
			.delay(2000)
			.fadeOut('slow')
	})
})