<a href="#" id="btn" icon="icon-search">easyui</a>

$('#btn').linkbutton(options);

<a href="javascript:void(0)" id="mb" icon="icon-edit">Edit</a>

<div id="mm" style="width:150px;">
<div icon="icon-undo">Undo</div>
<div icon="icon-redo">Redo</div>
<div class="menu-sep"></div>
<div>Cut</div>
<div>Copy</div>
<div>Paste</div>
<div class="menu-sep"></div>
<div icon="icon-remove">Delete</div>
<div>Select All</div>
</div>

$('#mb').menubutton({
menu: '#mm'
});