根據身份證生成規則，校驗身份證

沒啥說的，直接上代碼，有用就拿去

HTML：

<input type="text" id="card" onblur="checkCard()" />

Js：

var checkCard=function(){
    var cardNo=$("#card").val();
    var result=$.checkCard(cardNo);
}

jquery.checkCard.js

/**
 * checkCard (http://blog.csdn.net/u598975767/article/details/75539374)
 * 基於jquery 根據中華人民共和國身份證號生成規則，校驗身份證號
 * @version     v0.1
 * @author      benboerba
 */
$.extend({
	    checkCard: function(cardNo) {
	    	   //省編碼
		   var provice = {
			"11": "北京","12": "天津","13": "河北","14": "山西","15": "內蒙古","21": "遼寧","22": "吉林",
			"23": "黑龍江","31": "上海","32": "江蘇","33": "浙江","34": "安徽","35": "福建","36": "江西",
			"37": "山東","41": "河南","42": "湖北","43": "湖南","44": "廣東","45": "廣西","46": "海南",
			"50": "重慶","51": "四川","52": "貴州","53": "雲南","54": "西藏","61": "陝西","62": "甘肅",
			"63": "青海","64": "寧夏","65": "新疆","71": "臺灣","81": "香港","82": "澳門","91": "國外"
		   };

		    if(!cardNo){
		        return false;
		    }
		    var ValCodeArr = ["1", "0", "X", "9", "8", "7", "6", "5", "4", "3", "2"];
		    var Wi = ["7", "9", "10", "5", "8", "4", "2", "1", "6", "3", "7", "9", "10", "5", "8", "4", "2"];
		    var Ai = "";
		    var length = cardNo.length;

		    // ================ 號碼的長度 15位或18位 ================
		    if (cardNo.length != 15 && cardNo.length != 18) {
		        alert("請輸入正確的身份證號碼");
		        return false;
		    }

		    // ================ 臨時操作身份證號 ================
		    if (cardNo.length == 18) {
		        Ai = cardNo;
		    } else if (cardNo.length == 15) {
		        Ai = cardNo.substring(0, 6) + "19" + cardNo.substring(6, 15);
		    }

		    //判斷,如果輸入的身份證號..如果最後一位是x或者X全部改爲X
		    cardNo = cardNo.toUpperCase();

		    // ================ 18位除最後以爲都爲數字;15位全部是數字 ================
		    if (!(/(^\d{15}$)|(^\d{17}([0-9]|X)$)/.test(cardNo))) {
		        alert("請輸入正確的身份證號碼");
		        return false;
		    }

		    // ================ 出生年月是否有效 ================
		    var strYear = Ai.substring(6, 10); // 年份
		    var strMonth = Ai.substring(10, 12); // 月份
		    var strDay = Ai.substring(12, 14); // 月份
		    if (!isDataFormat(strYear + "-" + strMonth + "-" + strDay)) {
		        alert("請輸入正確的身份證號碼");
		        return false;
		    }
		    var nowDate = new Date();
		    var cardDate = new Date(strYear + "-" + strMonth + "-" + strDay);
		    var currentAge = nowDate.getFullYear() - cardDate.getFullYear();
		    var timeDiffer = nowDate.getTime() - cardDate.getTime();
		    // ================ 如果出生年份與現在相差大於150年或者生日晚於當前時間 則不在有效範圍 ================
		    if (currentAge > 150 || timeDiffer < 0) {
		        alert("請輸入正確的身份證號碼");
		        return false;
		    }

		    // ================ 地區碼是否有效 ================
		    if (provice[Ai.substring(0, 2)] == null) {
		        alert("請輸入正確的身份證號碼");
		        return false;
		    }

		    // ================ 判斷最後一位的值 ================
		    var TotalmulAiWi = 0;
		    for (var i = 0; i < 17; i++) {
		        TotalmulAiWi = TotalmulAiWi + parseInt(Ai.charAt(i)) * parseInt(Wi[i]);
		    }
		    var modValue = TotalmulAiWi % 11;
		    if (cardNo.length == 18 && cardNo.charAt(17) != ValCodeArr[modValue]) {
		        alert("請輸入正確的身份證號碼");
		        return false;
		    }
		    return true;
	    	    /**
		     * 驗證日期字符串是否是YYYY-MM-DD格式
		     * 此正則已對年月日進行校驗，包括每月天數差別（28、29、30、31）,及平年閏年
		     */
		     function isDataFormat (str) {
			var flag = false;
			var regxStr = "^((\\d{2}(([02468][048])|([13579][26]))[\\-\\/\\s]?((((0?[13578])|(1[02]))" +
			        "[\\-\\/\\s]?((0?[1-9])|([1-2][0-9])|(3[01])))|(((0?[469])|(11))[\\-\\/\\s]?" +
			        "((0?[1-9])|([1-2][0-9])|(30)))|(0?2[\\-\\/\\s]?((0?[1-9])|([1-2][0-9])))))|(" +
			        "\\d{2}(([02468][1235679])|([13579][01345789]))[\\-\\/\\s]?((((0?[13578])|(1[02]" +
			        "))[\\-\\/\\s]?((0?[1-9])|([1-2][0-9])|(3[01])))|(((0?[469])|(11))[\\-\\/\\s]?" +
			        "((0?[1-9])|([1-2][0-9])|(30)))|(0?2[\\-\\/\\s]?((0?[1-9])|(1[0-9])|(2[0-8]))))" +
			        "))(\\s(((0?[0-9])|([1-2][0-3]))\\:([0-5]?[0-9])((\\s)|(\\:([0-5]?[0-9])))))?$";
			var regexp = new RegExp(regxStr);
			if (regexp.test(str)) {
			    flag = true;
			}
			return flag;
		      };
	    }
});