javascript 也可以用try catch了.

function Deal() {

                    try {
                        form1.submit();  //或其他可以引发错误的代码
                    } catch (err) {
                        document.writeln("Error name: " + err.name);
                        document.writeln("Error message:" + err.message);
                    }
                    finally {
                        alert("some message");
                    }
                }

</script>
</head>
<body>
    <form />
    </div>
    </form>
</body>
</html>