This example shows how to change the alignment of the top level menu.
<div style="margin:20px 0;">
<span>Change Alignment: </span>
<select onchange="setalign(this.value)">
<option value="left">Left</option>
<option value="right">Right</option>
</select>
</div>
<div class="easyui-panel" style="padding:5px;">
<a href="#" class="easyui-linkbutton" data-options="plain:true">Home</a>
<a href="#" class="easyui-menubutton" data-options="menu:'#mm1',iconCls:'icon-edit'">Edit</a>
<a href="#" class="easyui-menubutton" data-options="menu:'#mm2',iconCls:'icon-help'">Help</a>
<a href="#" class="easyui-menubutton" data-options="menu:'#mm3'">About</a>
</div>
<div id="mm1" style="width:150px;">
<div data-options="iconCls:'icon-undo'">Undo</div>
<div data-options="iconCls:'icon-redo'">Redo</div>
<div class="menu-sep"></div>
<div>Cut</div>
<div>Copy</div>
<div>Paste</div>
<div class="menu-sep"></div>
<div>
<span>Toolbar</span>
<div>
<div>Address</div>
<div>Link</div>
<div>Navigation Toolbar</div>
<div>Bookmark Toolbar</div>
<div class="menu-sep"></div>
<div>New Toolbar...</div>
</div>
</div>
<div data-options="iconCls:'icon-remove'">Delete</div>
<div>Select All</div>
</div>
<div id="mm2" style="width:100px;">
<div>Help</div>
<div>Update</div>
<div>About</div>
</div>
<div id="mm3">
<div>History</div>
<div>Faq</div>
<div>Our Team</div>
</div>
<script>
function setalign(align){
$('a.easyui-menubutton').menubutton({
menuAlign: align
})
}
</script>