<html>
<head>
<title>提交表单</title>
<meta http-equiv="content-type" content="text/html;charset=gb2312"/>
<script type="text/javascript">
function valid(f) {
if (phone1.value == "") {
alert("手机必须填写");
return false;
}
if (cename1.value == "") {
alert("中英文名必须填写");
return false;
}
return true;
}
</script>
</head>
<body>
<form action="#" onsubmit="return valid(this)">
登记手机: <input type="text" size="70" id="phone1" maxlength="11"></br>
中英文全名:<input type="text" size="70" id="cename1" maxlength="12"></br>
<input type="submit" id="save" value="保存">
</form>
</body>
</html>要实现中英文名和手机必须填写。
<head>
<title>提交表单</title>
<meta http-equiv="content-type" content="text/html;charset=gb2312"/>
<script type="text/javascript">
function valid(f) {
if (phone1.value == "") {
alert("手机必须填写");
return false;
}
if (cename1.value == "") {
alert("中英文名必须填写");
return false;
}
return true;
}
</script>
</head>
<body>
<form action="#" onsubmit="return valid(this)">
登记手机: <input type="text" size="70" id="phone1" maxlength="11"></br>
中英文全名:<input type="text" size="70" id="cename1" maxlength="12"></br>
<input type="submit" id="save" value="保存">
</form>
</body>
</html>要实现中英文名和手机必须填写。
if (f.phone1.value == "") {
alert("手机必须填写");
return false;
}
if (f.cename1.value == "") {
alert("中英文名必须填写");
return false;
}
function valid() {
if (document.getElementById("phone1").value == "") {
alert("手机必须填写");
return false;
}
if (document.getElementById("cename1").value == "") {
alert("中英文名必须填写");
return false;
}
}
</script>
<head>
<title>提交表单</title>
<meta http-equiv="content-type" content="text/html;charset=gb2312"/>
<script type="text/javascript">
function valid(f) {
if (f.phone1.value == "") {
alert("手机必须填写");
return false;
}
if (f.cename1.value == "") {
alert("中英文名必须填写");
return false;
}
return true;
}
</script>
</head>
<body>
<form action="#" onsubmit="return valid(this)">
登记手机: <input type="text" size="70" name="phone1" maxlength="11"></br>
中英文全名:<input type="text" size="70" name="cename1" maxlength="12"></br>
<input type="submit" id="save" value="保存">
</form>
</body>
</html>
<html>
<head>
<title>提交表单</title>
<meta http-equiv="content-type" content="text/html;charset=gb2312"/>
<script type="text/javascript">
function valid(f) {
var phone_num=document.getElementById("phone1");
if (phone_num.value == "") {
alert("手机必须填写");
return false;
}
var name=document.getElementById("cename1");
if (name.value == "") {
alert("中英文名必须填写");
return false;
}
return true;
}
</script>
</head>
<body>
<form action="#" onsubmit="return valid(this)">
登记手机: <input type="text" size="70" id="phone1" maxlength="11"></br>
中英文全名:<input type="text" size="70" id="cename1" maxlength="12"></br>
<input type="submit" id="save" value="保存">
</form>
</body>
</html>
谁知道phone1,cename1是什么 。