<!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>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>回车提交</title>
<script type="text/javascript">
function check(){
if(event.keyCode==13){alert("您按下了回车键");}}
</script>
</head>
<body onload="check()">
<input type="text" id="t1" onkeydown="if(event.keyCode==13){document.getElementById('bt').click();return false;}" /><button id="bt" onclick="alert('回车单击了按钮!!')">确 认</button>
</body>
</html>
