Positioning the element second time using JQuery U

Here is my fiddle: http://jsfiddle.net/Ya3w7/2/

HTML:

<img src="http://cdn.tacky.me/m/static/settings16.png" class="settings-icon"/>

<div id="control-panel">
    <img src="http://cdn.tacky.me/m/static/settings16.png" />
    <a href="#" style="float:right" id="close-cp">X</a>
    <div class="link_container"><a href="#">Show Profile</a></div>
</div>

CSS:

.settings-icon 
{
    margin: 100px;
    cursor: pointer;
}

#control-panel
{
    position: absolute;
    height: auto;
    width: auto;
    top: 0;
    left: 0;
    background-color: #fff;
    font-family: Arial, sans-serif;
    display: none;
    z-index: 4;
}

JavaScript:

$('.settings-icon').click(function(){
    $('#control-panel').position({
        of: $('.settings-icon'),
        my: 'left top',
        at: 'left top'
    });
    $('#control-panel').show();
});

$('#close-cp').click(function(event){
    event.preventDefault();
    $('#control-panel').hide();
});

What I am trying to do: I have a settings image, upon clicking which it positions an absolutely positioned div (called contgrol-panel) around this img.

What I am seeing:

First time I click on the img it works fine

I dismiss the control panel by clicking on X on the top right corner

Second time I click the control panel shows up somewhere else

How to Repro

Go to the fiddle

Click on the settings icon for the first time
Dismiss the control panel which drops down by clicking on the X
Click on the settings icon once again
See control panel popping up somewhere else

回答1:

You just need to put the control panel back to 0, 0 after it's closed. Here's the updated fiddle http://jsfiddle.net/Ya3w7/3/.

$('.settings-icon').click(function(){
    $('#control-panel').position({
        of: $(this),
        my: 'left top',
        at: 'left top'
    });
    $('#control-panel').show();
});

$('#close-cp').click(function(event){
    event.preventDefault();
    $('#control-panel').css({top: '0px', left: '0px'}).hide();
});

回答2:

because jquery ui doesn't support position to hidden element, you have to show and position.

$('.settings-icon').click(function(){
  $('#control-panel').show().position({
    of: $(this),
    my: 'left top',
    at: 'left top'
   });
});