表单验证

//表单验证
function formCheck(obj) {
    var oForm = obj.parents('form');
    oForm.find('input').each(function (i, v) {
        if($(v).attr('required')){
            if('' == $.trim($(v).val())) {
                $(v).next('.red').remove();
                $(v).after("<div class='red'>"+$(v).data('name')+"不能为空</div>");
                $(v).focus();
                return false;
            }else if('tel' == $(v).attr("type")){
                $(v).next('.red').remove();
                var phoneNum = $(v).val();
                var telReg = !!phoneNum.match(/^(0|86|17951)?(13[0-9]|15[012356789]|17[678]|18[0-9]|14[57])[0-9]{8}$/);
                if(phoneNum!=''){
                    if(!telReg){
                        $(v).next('.red').remove();
                        $(v).after("<div class='red'>手机格式不正确</div>");
                        $(v).focus();
                        return false;
                    }
                }
            }else if('email' == $(v).attr("type")) {
                $(v).next('.red').remove();
                var email = $(v).val();
                var emailReg = !!email.match(/^([a-zA-Z0-9]+[_|\_|\.]?)*[a-zA-Z0-9]+@([a-zA-Z0-9]+[_|\_|\.]?)*[a-zA-Z0-9]+\.[a-zA-Z]{2,3}$/);
                if(!emailReg){
                    $(v).next('.red').remove();
                    $(v).after("<div class='red'>邮箱格式不正确</div>");
                    $(v).focus();
                    return false;
                }else {
                    $(v).next('.red').remove();
                }
            }else if('password' == $(v).attr("type")) {
                $(v).next('.red').remove();
                var psw = $(v).val();
                var pswReg = !!psw.match(/^[A-Za-z0-9_]{6,16}$/);
                if(!pswReg){
                    $(v).next('.red').remove();
                    $(v).after("<div class='red'>密码由6-16位英文字母、数字和_组成</div>");
                    $(v).focus();
                    return false;
                }else {
                    $(v).next('.red').remove();
                }
            }else {
                $(v).next('.red').remove();
            }
        }
    })
}