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$(function() {
    $('ul').contextmenu('Color UL', function() { $(this).css('background-color', 'blue'); });
    $('ul li').contextmenu('Delete LI', {'icon': 'http://www.famfamfam.com/lab/icons/silk/icons/delete.png'}, function() { $(this).remove(); });
    $('ul li').contextmenu('Color LI', function() { $(this).css('background-color', 'red'); });
});

<div>Right click on either the UL or an LI.</div>
<ul>
    <li>A</li>
    <li>B</li>
    <li>C</li>
    <li>D</li>
</ul>

ul {
    border: 1px solid #ccc;
    padding: 10px 10px 0px 0;
    float: left;
    margin: 1em;
}
ul li {
    margin-left: 10px;
    background-color: #eee;
    width: 200px;
    height: 200px;
    display: block;
    float: left;
    margin-bottom: 10px;
}
div {
    overflow: auto;
}