Execute jquery animate only one time
<p>I've the following function:</p>

<pre><code>$('.link1').click(function(){
    $("#div2").slideUp(function(){$("#div1").slideToggle();});
    $('html, body').animate({scrollTop: '600px'}, 800);
});
</code></pre>

<p>It toggles a div and scroll the page down. The problem is that everytime the user toggles the page scroll down again...how could I run this animate function only at first click?</p>
