title: jQuery animate movement left and right
body: <p>Using jquery's <code>.css()</code> i am changing the left attributes value to move a div left or right. Im looking for a way to animate this change as it occurs.  Nothing ive tried is working, ive tried jQueryUI's <code>.show(slide)</code> function, but this moves the whole div, rather than just the 120px movement i need.</p>
  
  <p>This is my current function which is working without an animation:</p>
  
  <pre><code>$('#plrt').live("click",function(){
      var lm=$('.plwid').css("left");
      lm = (parseInt(lm) + 120);
      $('.plwid').css("left", lm);    
  });
  </code></pre>
  
  <p>this is the slide function, it does not work properly as the whole div goes from <code>display:hide</code> to <code>display:show</code>, rather than just moving the pixel change</p>