jQuery toggle only works on second click after scrollTo event - toggle

Question

I have some mobile navigation that uses a scrollTo function, that once clicked, makes my toggle function only work on the second click. It may have to do the the binding of the scrollTo click, but I can't figure out how to fix it.
HTML:
<div class="nav-bar">
<ul class="nav">
<li>Section 1</li>
<li>Section 2</li>
<li>Section 3</li>
</ul>
<a class="nav-toggle">Menu</a>
</div>
<div class="section-wrap">
<div id="section1" class="section">Section 1</div>
<div id="section2" class="section">Section 2</div>
<div id="section3" class="section">Section 3</div>
</div>
JS:
$('ul.nav a').bind('click',function(event){
$('ul.nav a').removeClass('on');
$(this).addClass('on');
var $anchor = $(this);
$('html, body').stop().animate({
scrollTop: $($anchor.attr('href')).offset().top - 30
}, 200, function() {
$('.nav-bar').removeClass('open');
});
event.preventDefault();
});
$('a.nav-toggle').toggle(function() {
$('.nav-bar').addClass('open');
}, function () {
$('.nav-bar').removeClass('open');
});
See this for a working example of the issue: http://jsfiddle.net/MhSKC/9/

Answer 1

At the end of your animate, you remove the open class. Then on the next click of the menu bar, the toggle function tries to remove the open class again, because that's the one of the two toggle functions that needs to execute next. Here's a slightly reworked solution:
http://jsfiddle.net/P4mtC/
$('a.nav-toggle').click(function() {
$('.nav-bar').toggleClass('open');
});

Answer 2

instead of using
$('a.nav-toggle').toggle(function() {
$('.nav-bar').addClass('open');
}, function () {
$('.nav-bar').removeClass('open');
});
use
$('a.nav-toggle').click(function() {
$('.nav-bar').toggleClass('open');
});