Edit in JSFiddle

$('#win').window({
    collapsible:false,
    minimizable:false,
    maximizable:false,
    closed:false,
    tools:[{
        iconCls:'icon-add',
        handler:function(){
            alert('add');
        }
    },{
        iconCls:'icon-remove',
        handler:function(){
            alert('remove');
        }
    }]
});

<div id="win" class="easyui-window" title="My Window" style="padding:10px;width:200px;height:100px;" closed="true">
    window content
</div>