function checkIdcard(idcard) {
	var Errors = new Array(
		"ok",
		"身份证号码位数错误",
		"身份证号码出生日期错误",
		"身份证号码校验错误",
		"身份证地区错误"
	);
	var area = {
		11: "北京", 12: "天津", 13: "河北", 14: "山西", 
		15: "内蒙古", 21: "辽宁", 22: "吉林", 23: "黑龙江", 
		31: "上海", 32: "江苏", 33: "浙江", 34: "安徽", 
		35: "福建", 36: "江西", 37: "山东", 41: "河南", 
		42: "湖北", 43: "湖南", 44: "广东", 45: "广西", 
		46: "海南", 50: "重庆", 51: "四川", 52: "贵州", 
		53: "云南", 54: "西藏", 61: "陕西", 62: "甘肃", 
		63: "青海", 64: "宁夏", 65: "新疆", 71: "台湾", 
		81: "香港", 82: "澳门", 91: "国外",
	}

	var idcard, Y, JYM, ereg;
	var S, M;
	var idcard_array = new Array();
	idcard_array     = idcard.split("");
	//地区检验
	if (area[parseInt(idcard.substr(0, 2))] == null) return Errors[4];
	//身份号码位数及格式检验
	switch (idcard.length) {
		case 15:
			if ((parseInt(idcard.substr(6, 2)) + 1900) % 4 == 0 || ((parseInt(idcard.substr(6, 2)) + 1900) % 100 == 0 && (parseInt(idcard.substr(6, 2)) + 1900) % 4 == 0)) {
				ereg = /^[1-9][0-9]{5}[0-9]{2}((01|03|05|07|08|10|12)(0[1-9]|[1-2][0-9]|3[0-1])|(04|06|09|11)(0[1-9]|[1-2][0-9]|30)|02(0[1-9]|[1-2][0-9]))[0-9]{3}$/; //测试出生日期的合法性
			} else {
				ereg = /^[1-9][0-9]{5}[0-9]{2}((01|03|05|07|08|10|12)(0[1-9]|[1-2][0-9]|3[0-1])|(04|06|09|11)(0[1-9]|[1-2][0-9]|30)|02(0[1-9]|1[0-9]|2[0-8]))[0-9]{3}$/; //测试出生日期的合法性
			}
			if (ereg.test(idcard)) return Errors[0];
			else return Errors[2];
		break;
		case 18:
			//18位身份号码检测
			//出生日期的合法性检查
			//闰年月日:((01|03|05|07|08|10|12)(0[1-9]|[1-2][0-9]|3[0-1])|(04|06|09|11)(0[1-9]|[1-2][0-9]|30)|02(0[1-9]|[1-2][0-9]))
			//平年月日:((01|03|05|07|08|10|12)(0[1-9]|[1-2][0-9]|3[0-1])|(04|06|09|11)(0[1-9]|[1-2][0-9]|30)|02(0[1-9]|1[0-9]|2[0-8]))
			if (
			parseInt(idcard.substr(6, 4)) % 4 == 0 
			|| 
			(
				parseInt(idcard.substr(6, 4)) % 100 == 0 
				&& 
				parseInt(idcard.substr(6, 4)) % 4 == 0
				)
			){
				ereg = /^[1-9][0-9]{5}[1-2]+[0-9]{3}((01|03|05|07|08|10|12)(0[1-9]|[1-2][0-9]|3[0-1])|(04|06|09|11)(0[1-9]|[1-2][0-9]|30)|02(0[1-9]|[1-2][0-9]))[0-9]{3}[0-9Xx]$/; //闰年出生日期的合法性正则表达式
			} else {
				ereg = /^[1-9][0-9]{5}[1-2]+[0-9]{3}((01|03|05|07|08|10|12)(0[1-9]|[1-2][0-9]|3[0-1])|(04|06|09|11)(0[1-9]|[1-2][0-9]|30)|02(0[1-9]|1[0-9]|2[0-8]))[0-9]{3}[0-9Xx]$/; //平年出生日期的合法性正则表达式
			}
			// 测试出生日期的合法性
            if (ereg.test(idcard)) {
				//计算校验位
				S = (parseInt(idcard_array[0]) + parseInt(idcard_array[10])) * 7
				+ (parseInt(idcard_array[1]) + parseInt(idcard_array[11])) * 9
				+ (parseInt(idcard_array[2]) + parseInt(idcard_array[12])) * 10
				+ (parseInt(idcard_array[3]) + parseInt(idcard_array[13])) * 5
				+ (parseInt(idcard_array[4]) + parseInt(idcard_array[14])) * 8
				+ (parseInt(idcard_array[5]) + parseInt(idcard_array[15])) * 4
				+ (parseInt(idcard_array[6]) + parseInt(idcard_array[16])) * 2
				+ parseInt(idcard_array[7]) * 1
				+ parseInt(idcard_array[8]) * 6
				+ parseInt(idcard_array[9]) * 3;
				Y = S % 11;
				M = "F";
				JYM = "10X98765432";
				M = JYM.substr(Y, 1); //判断校验位
				if (M == idcard_array[17]) return Errors[0]; //检测ID的校验位
				else return Errors[3];
			}else {
				return Errors[2];
			}
        break;
        default:
			return Errors[1];
			break;
    }
}
export default{
	checkIdcard : checkIdcard
}