h2>Multiple ComboTree</h2>
<div class="demo-info">
    <div class="demo-tip icon-tip"></div>
    <div>Click the right arrow button to show the tree panel and select multiple nodes.</div>
</div>
<div style="margin:10px 0">
    <span>Cascade Check: </span>
    <input type="checkbox" checked onclick="$('#cc').combotree({cascadeCheck:$(this).is(':checked')})">
</div>
<select id="cc" class="easyui-combotree" data-options="url:'../combotree/tree_data1.json'" multiple
        style="width:200px;"></selec