the side menu to display the main icon.</p>
	<div style="margin:20px 0;">
		<a href="javascript:;" class="easyui-linkbutton" onclick="toggle()">Toggle</a>
	</div>
	<div id="sm" class="easyui-sidemenu" data-options="data:data"></div>
	<script type="text/javascript">
		var data = [{
	        text: 'Item1',
	        iconCls: 'icon-sum',
	        state: 'open',
	        children: [{
	            text: 'Option1'
	        },{
	            text: 'Option2'
	        },{
	            text: 'Option3',
	            chi