谁有根据权限来控制显示菜单的例子？
谁有根据权限来控制显示菜单的例子？要webform的。我现在有个登录界面（login.aspx）如果为管理员登录，登录成功后显示的index.aspx里的菜单就全显示，如果为别的用户登录，就在index.aspx里显示部分菜单。这种如何实现？另外我的index.aspx代码如下：（是普通的ＨＴＭＬ网页）
BODY   onselectstart= "return   false "   bgColor= "#fffbf7 "   leftMargin= "0 "   topMargin= "5 "   onload= "getPrivate() ">
<FIELDSET   style= "MARGIN:   3px;   WIDTH:   100%;   CURSOR:   default ">
<TABLE   cellSpacing= "1 "   cellPadding= "1 "   width= "590 "   border= "0 ">
<TBODY>
<TR>
<TD   align= "center "   width= "42 "   height= "22 ">
<DIV   class= "small_button "   id= "toolbar_m1000 "   onmouseover= "m_in(1000) "   onclick= "expandMenu(1000,7,26); "
onmouseout= "m_out(this.id) "> 文件 </DIV>
</TD>
<TD   align= "center "   width= "74 "   height= "22 ">
<DIV   class= "small_button "   id= "toolbar_m10 "   onmouseover= "m_in(10) "   onclick= "expandMenu(10,69,26); "
onmouseout= "m_out(this.id) "> aa </DIV>
</TD>
<TD   align= "center "   width= "72 "   height= "22 ">
<DIV   class= "small_button "   id= "toolbar_m20 "   onmouseover= "m_in(20) "   onclick= "expandMenu(20,176,26); "
onmouseout= "m_out(this.id) "> bb </DIV>
</TD>
<TD   align= "center "   width= "72 "   height= "22 ">
<DIV   class= "small_button "   id= "toolbar_m30 "   onmouseover= "m_in(30) "   onclick= "expandMenu(30,281,26); "
onmouseout= "m_out(this.id) "> cc </DIV>
</TD>
<TD   align= "center "   width= "72 "   height= "22 ">
<DIV   class= "small_button "   id= "toolbar_m70 "   onmouseover= "m_in(70) "   onclick= "expandMenu(70,386,26); "
onmouseout= "m_out(this.id) "> dd </DIV>
</TD>
<TD   align= "center "   width= "72 "   height= "22 ">
<DIV   class= "small_button "   id= "toolbar_m80 "   onmouseover= "m_in(80) "   onclick= "expandMenu(80,491,26); "
onmouseout= "m_out(this.id) "> 操作员管理 </DIV>
</TD>
</TR>
</TBODY>
</TABLE>
</FIELDSET>
<DIV   class= "menu "   id= "menu1000 ">
<TABLE   cellSpacing= "1 "   cellPadding= "1 "   border= "0 ">
<TBODY>
<TR>
<TD   noWrap   height= "20 ">
<DIV   class= "menuout "   onmouseover= "javascript:this.className= 'menuover ' "   onclick= "javascript:show( '关于 ', 'about.htm ',486,370) "
onmouseout= "javascript:this.className= 'menuout ' "> 关于 </DIV>
</TD>
</TR>
<TR>