Positioning jquery ui dialog box

How to position jquery ui dialog box with respect to a div element inside开发者_运维问答 the body?

Perhaps this might get you the idea how to do it:

HTML:

<div id="one" class="divs"></div>
<div id="two" class="divs"></div>

CSS:

.divs {
    float: left;
    height: 48px;
    width: 80px;
    border: 1px solid #55f;
}

JS:

$(document).ready(function(){
    var $div = $('#two');
    var left = $div.offset().left;
    var top= $div.offset().top;
    $('<p>Some dialog</p>').dialog({position: [left + 20, top + 20]});
});

Here is the link to demo.

jQuery offset() returns element postion relative to document, while position() returns relative to offset parent.

Use jQuery position function or jQuery UI one

$('#dialog').position({of: $('#your_div')});

http://api.jquery.com/offset/ shows how to get coordinates of a div element. but direct usage might not be enough as this depends on layout structure (floats, margins, etc).