function checkMobile(s) {
    var field13 = /^13\d{9}$/g;
    var field15 = /^15\d{9}$/g;
    var field18 = /^18\d{9}$/g;
    if ((field13.exec(s)) || (field15.exec(s)) || (field18.exec(s)))
    { window.open('http://sms.chem99.com/?mobile=' + s + '&&source=5&&&sourcesite=5'); }
    else { alert('请输入正确的手机号码') }
}