在非IE浏览器下啊,如FIREFOX, OPERA,下列代码中能否实现注释块中的功能?
    
    <table>
        <tr>
            <td>此处值通过js设置:</td>
            <td><input id="jsUserName" type="text" name="jsUserName" readonly/></td>
        </tr>
        <tr>
            <td>此处输入值:</td>
            <td><input id="userName" type="text" name="userName"/></td>
        </tr>
    </table>    <script type="text/javascript">        $(function() {
            var jsUserName = "";
            if ($.browser.msie) // IE浏览器
            {
                $("#userName").get(0).onpropertychange = setJsUserName;
                $("#jsUserName").get(0).onpropertychange = handle;
            } else // 其他浏览器
            {
                
                var intervalName; // 定时器句柄
                $("#userName").get(0).addEventListener("input", setJsUserName, false);
//                $("#jsUserName").get(0).addEventListener("input", handle, false);
//                $("#jsUserName").get(0).watch('input', handle);                document.getElementById('jsUserName').addEventListener("input", handle, false);
                document.getElementById('jsUserName').addEventListener("change", handle, false);
                document.getElementById('jsUserName').watch('input', handle);
                document.getElementById('jsUserName').watch('change', handle);//                // 获得焦点时,启动定时器
//                $("#userName").focus(function() {
//                    intervalName = setInterval(handle, 1000);
//                });
//                // 失去焦点时,清除定时器
//                $("#userName").blur(function() {
//                    clearInterval(intervalName);
//                });
            }            // 设置jsUserName input的值            function setJsUserName() {
                $("#jsUserName").val($(this).val());
            }            // jsUserName input的值改变时执行的函数            function handle() {
                // IE浏览器此处判断没什么意义,但为了统一,且提取公共代码而这样处理。
                if ($("#jsUserName").val() != jsUserName) {
                    $("#toolTip").remove();
                    $("#jsUserName").parent().append("<span id='toolTip'>看到这里的信息表明,通过js改变input的值也能响应相应事件:<span style='color:red;' mce_style='color:red;'>" + $("#jsUserName").val() + "</span></span>");
                    jsUserName = $("#jsUserName").val();
                }
            }
        });    </script>
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