<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>Insert title here</title>
</head>
<body>
<form name="form1"method="post"action="">
用户名：<input name="user"type="test"id="user"></br>
密    码：<input name="pwd"type="test"id="pwd"></br>
<input name="Button"type="button"class="btn_grey"value="登陆" onClick="check()">
<input name="Submit2"type="reset"class="btn_grey"value="重置">
</form>
</body>
<script type="text/javascript">
function check(){
if(form1.user.value==""){
alert("请输入用户名");form1.user.focus();return;//若用户名没有输入鼠标移到这里
}else if(form1.pwd.value==""){
alert("请输入密码");form1.pwd.focus();return;
}else{
form1.submit();
}
}
</script>
</html>
<html>
<head>
<meta charset="UTF-8">
<title>Insert title here</title>
</head>
<body>
<form name="form1"method="post"action="">
用户名：<input name="user"type="test"id="user"></br>
密    码：<input name="pwd"type="test"id="pwd"></br>
<input name="Button"type="button"class="btn_grey"value="登陆" onClick="check()">
<input name="Submit2"type="reset"class="btn_grey"value="重置">
</form>
</body>
<script type="text/javascript">
function check(){
if(form1.user.value==""){
alert("请输入用户名");form1.user.focus();return;//若用户名没有输入鼠标移到这里
}else if(form1.pwd.value==""){
alert("请输入密码");form1.pwd.focus();return;
}else{
form1.submit();
}
}
</script>
</html>
