Easyui uses Dialog inline button layout

<p class="easyui-layout" data-options="fit:true"> 
  <p data-options="region:&#39;north&#39;,split:false" 
   > 
   <p title="角色分配" >    
    <table cellpadding="12" cellspacing="0" > 
      <tr> 
       <td >角色名称:</td> 
       <td><input id="roleName" class="easyui-textbox" 
        ></td> 
       <td >角色功能:</td> 
       <td> 
        <select id="roleFun" class="easyui-combobox" data-options="editable:false,multiple:true,panelHeight:&#39;400px&#39;" ></select> 
        <p id="roleFunPanel"> 
         <ul id="roleFunTree" class="easyui-tree" data-options="animate: true,checkbox:true"> 
          <li>线路列表1</li> 
          <li>线路列表2</li> 
          <li>线路列表3</li> 
         </ul>        
        </p>        
       </td> 
       <td > 
        <a href="javascript:void(0)" rel="external nofollow" rel="external nofollow" rel="external nofollow" class="easyui-linkbutton" data-options="iconCls:&#39;icon-add&#39;,plain:true" onclick="newAppendRole()">添加</a> 
       </td>   
      </tr>   
    </table> 
    <table id="tblRoleDetail" ></table> 
   </p> 
  </p> 
 </p> 
  <p id="editRoleDialogFrame"></p>

var grid = $("#tblRoleDetail").datagrid({ 
 border : false, 
 striped : true, 
 rownumbers : true, 
  fitColumns : true, 
  singleSelect : true, 
  height: '90%', 
  width: '100%', 
  idField :'roleName', 
  plain : true, 
  fit : false, <span > </span> 
  selectOnCheck:false, 
  nowrap: true, 
  onClickRow : tblRoleDetailOnClickRow , 
  columns:[[ 
   {field:'roleName',title:'角色名',width: '19%',align:'center'}, 
   {field:'funId',title:'权限名称',width: '70%',align:'left', 
   formatter: function(value,row,index){ 
    return '<span title=&#39;+value+&#39;>'+value+'</span>' 
   } 
   }, 
   {field:'opt',title:'操作',width:'10%',align:'center', 
    formatter:function(value,rec) 
    { 
     var btn1 = '<a class="editcls" onclick="newRoleEdit(\&#39;&#39;+rec.roleName+&#39;\&#39;)" href="javascript:void(0)" rel="external nofollow" rel="external nofollow" rel="external nofollow" >编辑</a>'; 
     var btn2 = '<a class="delecls" onclick="removeRole(\&#39;&#39;+rec.roleName+&#39;\&#39;)" href="javascript:void(0)" rel="external nofollow" rel="external nofollow" rel="external nofollow" >删除</a>'; 
     return btn1+btn2;  
    } 
   } 
  ]], 
  onLoadSuccess:function(data){ 
   $('.editcls').linkbutton({text:'编辑',plain:true,iconCls:'icon-edit'}); 
   $('.delecls').linkbutton({text:'删除',plain:true,iconCls:'icon-remove'}); 
   $('#tblRoleDetail').datagrid('fixRowHeight'); //固定所有高度，避免行号和行数据错位 
  } 
 });