title: jquery slideToggle call once
body: <p>That just could be very simple, but it's about 2AM and getting quite sleepy :)</p>
  
  <p>I have short script which "slideToggle" div from being non-displayed.</p>
  
  <pre><code>$('#cmnt_add').click(function () { $('.dark_div_add').slideToggle(1100); });
  </code></pre>
  
  <p>Is there a chance to make it workout once, so if non-displayed DIV is opened, clicking same link won't do a thing?</p>
  
  <p>Thank you in advance!</p>