$.extend($.datatype, {
    "pwd": /^[a-za-z][a-za-z0-9_]{5,19}$/,
    "t": /0\d{2,3}-\d{5,9}|0\d{2,3}-\d{5,9}/,
    "username": /^[a-za-z0-9_]+$/,
    "phone": function (gets, obj, curform, regxp) {
        /*参数gets是获取到的表单元素值，
          obj为当前表单元素，
          curform为当前验证的表单，
          regxp为内置的一些正则表达式的引用。*/
        var reg1 = regxp["m"], reg2 = /[\d]{7}/, mobile = curform.find("input[name='mobile']");
        if (reg1.test(mobile.val())) { return true; }
        if (reg2.test(gets)) { return true; }
        return false;
    },
    "realname": function (gets, obj) {
        var patrn = /^\s*[\u4e00-\u9fa5]{1,}[\u4e00-\u9fa5.·]{0,15}[\u4e00-\u9fa5]{1,}\s*$/;
        return patrn.test(gets);
    },
    "tel": function (gets, obj) {
        var patrn = /[\d]{7}/;
        return patrn.test(gets);
    },
    "price": function (gets, obj) {
        if (parseint(gets) >= 0 && parseint(gets) <= 9999999) { return true; }
    },
    "cjh": function (gets, obj) {
        var patrn = /^[a-za-z0-9]{17}$/;
        return (patrn.test(gets));
    },
    "idcard": function (gets, obj, curform, datatype) {
        //该方法由佚名网友提供;

        var wi = [7, 9, 10, 5, 8, 4, 2, 1, 6, 3, 7, 9, 10, 5, 8, 4, 2, 1];// 加权因子;
        var validecode = [1, 0, 10, 9, 8, 7, 6, 5, 4, 3, 2];// 身份证验证位值，10代表x;

        if (gets.length == 15) {
            return isvaliditybrithby15idcard(gets);
        } else if (gets.length == 18) {
            var a_idcard = gets.split("");// 得到身份证数组   
            if (isvaliditybrithby18idcard(gets) && istruevalidatecodeby18idcard(a_idcard)) {
                return true;
            }
            return false;
        }
        return false;
        function istruevalidatecodeby18idcard(a_idcard) {
            var sum = 0; // 声明加权求和变量   
            if (a_idcard[17].tolowercase() == 'x') {
                a_idcard[17] = 10;// 将最后位为x的验证码替换为10方便后续操作   
            }
            for (var i = 0; i < 17; i++) {
                sum += wi[i] * a_idcard[i];// 加权求和   
            }
            valcodeposition = sum % 11;// 得到验证码所位置   
            if (a_idcard[17] == validecode[valcodeposition]) {
                return true;
            }
            return false;
        }
        function isvaliditybrithby18idcard(idcard18) {
            var year = idcard18.substring(6, 10);
            var month = idcard18.substring(10, 12);
            var day = idcard18.substring(12, 14);
            var temp_date = new date(year, parsefloat(month) - 1, parsefloat(day));
            // 这里用getfullyear()获取年份，避免千年虫问题   
            if (temp_date.getfullyear() != parsefloat(year) || temp_date.getmonth() != parsefloat(month) - 1 || temp_date.getdate() != parsefloat(day)) {
                return false;
            }
            return true;
        }
        function isvaliditybrithby15idcard(idcard15) {
            var year = idcard15.substring(6, 8);
            var month = idcard15.substring(8, 10);
            var day = idcard15.substring(10, 12);
            var temp_date = new date(year, parsefloat(month) - 1, parsefloat(day));
            // 对于老身份证中的你年龄则不需考虑千年虫问题而使用getyear()方法   
            if (temp_date.getyear() != parsefloat(year) || temp_date.getmonth() != parsefloat(month) - 1 || temp_date.getdate() != parsefloat(day)) {
                return false;
            }
            return true;
        }
    },
    "checktime": function (gets, obj, curform, regxp) {
        var begintime = curform.find("input[name='begintime']").val(), endtime = curform.find("input[name='endtime']").val();
        var begintime = new date(begintime.replace(/\-/g, "\/"));
        var endtime = new date(endtime.replace(/\-/g, "\/"));
        if (begintime > endtime) { return false; }
        return true;
    },
    "lt1num": function (gets, obj) {
        if (parseint(gets) < 1) { return true; }
    },
    "need1": function (gets, obj, curform, regxp) {
        var need = 1,
            numselected = curform.find("input[name='" + obj.attr("name") + "']:checked").length;
        return numselected >= need ? true : "请至少选择" + need + "项！";
    }
});