在Struts.xml配置如何转跳带frame的页面,现在的目标是删除完成,转跳到SystemBasic_DepartmentList.jsp target="navTab"的效果,现在没有,直接在 target="_blank"新窗口打开了,这不是我想要的效果,我在要target="navTab"的效果,请问如何实现呢? 
<!-- 部门删除功能 -->
<action name="DepartmentDelete" class="it.action.DepartmentAction"
method="DepartmentDelete">
<result name="DepartmentDelete">/index.jsp</result>

<result name="DepartmentDelete" type="redirect">DepartmentList.action</result>
</action><!-- 显示部门列表 -->
<action name="DepartmentList" class="it.action.DepartmentAction"
method="DepartmentList">
<result name="DepartmentList">/SystemBasic_DepartmentList.jsp</result>
</action>