Jquery position snippet issue
<p>I am trying to understand someone else's codes...he has the following:</p>

<pre><code>    var positionAt = horizontalPosition + ' ' + verticalPosition;
    var positionOffset = String(horizontalOffset + ' ' + verticalOffset);

   //i don't understand the codes below. I don't think Jquery position method support at and of attribues....

   $tooltipElement.position({at: positionAt, of: $element, my: 'left top', offset: positionOffset});

                $element.hover(function(){
                            $instance = $(this).css({'cursor': 'pointer'});
                            $('#tooltip-' + $instance.attr('id') ).fadeIn('fast');
                }, function(){
                            $instance = $(this).css({'cursor': 'auto'});
                            $('#tooltip-' + $instance.attr('id') ).fadeOut('fast');
                });
</code></pre>

<p>I am not sure what the position method with At, of and my attributes for. Can anyone help me about it? Thanks a lot.</p>
