<html>
<head><title>测试keydown</title>
<SCRIPT LANGUAGE="JavaScript">
function enterkey()
{
if(event.keyCode==13 && event.srcElement.type !="BUTTON" && event.srcElement.type!="SUBMIT")
event.keyCode=9;
}
</SCRIPT>
</head>
<body>
<form id="form1" method="post">
<input type="text" id="txt1" onkeydown="enterkey();">
<input type="text" id="txt2" onkeydown="enterkey();">
<input type="text" id="txt3" onkeydown="enterkey();">
<input type="button" id="btn" Text="提交" onclick="alert('不再跳下去了');">
</form>
</body>
</html>
