IE JS 弹出窗口如何操作啊，求指教

zhizunbao84

<a href="save.asp?action=delete&amp;id=58131&amp;page=0" class="b"><img src="../imges/delete.jpg" width="57" height="21" border="0"></a>

用_IEImgClick点击图片后弹出对话框，再用send("{Enter}")、controlclick("Microsoft Inernet Explorer","您要删除此信息吗","[CLASS:button;INSTANCE:1]")都未能执行

搜索坛子里，发现有人用_IEAction解决了，但是我测试却是不行啊，代码如下，请各位指教啊？？
$oImgs = _IEImgGetCollection($oIE)
For $oImg In $oImgs
    if $oImg.src == '../imges/delete.jpg' then
         $hwnd = _IEPropertyGet($oIE, "hwnd")
         _IEAction($oImg, "focus")
         ControlSend($hwnd, "", "[CLASS:Internet Explorer_Server; INSTANCE:1]", "{Enter}")
         WinWait("Microsoft Internet Explorer", "")
        ControlClick("Microsoft Internet Explorer", "", "[CLASS:Button; Instance:1;]")      
    endif
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