移动端表单验证用户名与手机号

<form action=”” class=”form” action=”” method=”post” id=”form1″>
<div class=”mt20″>
<label for=”name” class=”namelabel”>您的姓名：</label><br>
<input type=”text” placeholder=”请输入您的姓名…” class=”write write1″ id=”username” />
</div>
<div class=”mt20″>
<label for=”name” class=”namelabel”>联系电话：</label><br>
<input type=”tel” placeholder=”请输入您的手机号码…” class=”write write2″ id=”tel” maxlength=”11″ />
</div>
<center>
<input type=”button” class=”submite” value=”点击提交获取学历方案” onclick=”sb();”/>
</center>

</form>

<script type=”text/javascript”>
function sb(){
var username = document.getElementById(“username”);
var tel = document.getElementById(“tel”);
var rules = /^1[3,5]\d{9}$/;
if(username.value==null || username.value==””){
alert(“请输入姓名”);
username.focus();
return;
}
if(tel.value==null || tel.value==””){
alert(“请输入手机号”);
tel.focus();
return;
}else if(rules.test(tel.value)){
alert(‘是手机号码‘);
}else {
alert(‘不是手机号码‘);
}
}

</script>