js获取对话框返回值

页面PageA.html

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
               "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
    <title>页面A</title>

    <script type="text/javascript" language="javascript">
    function GoOpenUrl(url,width,height)//定义打开窗口的返回值
      {
        var isMSIE= (navigator.appName == "Microsoft Internet Explorer");  //判断浏览器
        if (isMSIE){
           var returnVal = window.showModalDialog(url, window, "dialogWidth="+width+"px;dialogHeight="+height+"px;status:0;scroll:no");
           if (returnVal!=undefined)
            {
              document.getElementById("textfield").value= returnVal;

            }
        }
        else {
            var returnVal = window.open(url, "PageB", "scrollbars=no,dialog=yes,modal=yes,width="+width+"px,height="+height+"px,resizable=no" );
            return false;
        }

      }
    </script>

</head>
<body>
    <textarea id="content" name="content" rows="5" style="width: 280px"></textarea>
    <input type="button" onclick="GoOpenUrl('PageB.html',500,500)" value="Test"/>
</body>
</html>

页面B

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
                "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
    <title>页面B</title>

    <script type="text/javascript" language="javascript">

      function GoReturnValue()
        {
            var returnVal=document.getElementById("txtVal").value;
            var isMSIE= (navigator.appName == "Microsoft Internet Explorer");
            if(isMSIE)
                window.dialogArguments.content.value=returnVal;
            else
                opener.document.getElementById("content").value= returnVal;
            window.close();
       }

    </script>

</head>
<body>
    <input type="text" id="txtVal" value="" />
    <input type="button" value="ok" onclick="GoReturnValue();" />
</body>
</html>

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