身份证正则

规则：http://www.360doc.com/content/11/0310/08/3080113_99760280.shtml

验证：http://mid.weixingmap.com/

    　　　　　　　　　　　　var code = ele.value;
                        var pass = true;
                        var city = {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 pass = true;
                        if (!code || !(/^\d{6}(18|19|20)\d{2}(0[1-9]|1[0-2])(0[1-9]|[12]\d|3[01])\d{3}(\d|X)$/i.test(code)||/^\d{6}\d{2}(0[1-9]|1[0-2])(0[1-9]|[12]\d|3[01])\d{3}$/i.test(code) ) ) {
                            pass = false;
                        } else if (!city[code.substr(0, 2)]) {
                            pass = false;
                        } else {
                            if (code.length == 18) {
                                code = code.split('');
                                var factor = [7, 9, 10, 5, 8, 4, 2, 1, 6, 3, 7, 9, 10, 5, 8, 4, 2];
                                //校验位
                                var parity = [1, 0, 'X', 9, 8, 7, 6, 5, 4, 3, 2];
                                var sum = 0;
                                var ai = 0;
                                var wi = 0;
                                for (var i = 0; i < 17; i++) {
                                    ai = code[i];
                                    wi = factor[i];
                                    sum += ai * wi;
                                }
                                var last = parity[sum % 11];
                                if (parity[sum % 11] != code[17]) {
                                    pass = false;
                                }
                            }
                        }