function checkPhone(){ 
    var phone = document.getElementById('phone').value;
    if(!(/^1[3456789]\d{9}$/.test(phone))){ 
        alert("手机号码有误，请重填");  
        return false; 
    } 
}

function checkPhone(){ 
    var phone = document.getElementById('phone').value;
    if(!(/^1(3|4|5|6|7|8|9)\d{9}$/.test(phone))){ 
        alert("手机号码有误，请重填");  
        return false; 
    } 
}

 function checkTel(){
 var tel = document.getElementById('tel').value;
if(!/^(\(\d{3,4}\)|\d{3,4}-|\s)?\d{7,14}$/.test(tel)){
alert('固定电话有误，请重填');
return false;
}
}