身份证号码验证(JS) http://www.lc96228.com/usercenter/js/common/jquery.validate.rule.js

jquery.validate.rule.js

/**
 * 身份证号码验证
 *
 */
function isIdCardNo(num) {

 var factorArr = new Array(7,9,10,5,8,4,2,1,6,3,7,9,10,5,8,4,2,1);
 var parityBit=new Array("1","0","X","9","8","7","6","5","4","3","2");
 var varArray = new Array();
 var intValue;
 var lngProduct = 0;
 var intCheckDigit;
 var intStrLen = num.length;
 var idNumber = num;
   // initialize
     if ((intStrLen != 15) && (intStrLen != 18)) {
         return false;
     }
     // check and set value
     for(i=0;i<intStrLen;i++) {
         varArray[i] = idNumber.charAt(i);
         if ((varArray[i] < '0' || varArray[i] > '9') && (i != 17)) {
             return false;
         } else if (i < 17) {
             varArray[i] = varArray[i] * factorArr[i];
         }
     }

     if (intStrLen == 18) {
         //check date
         var date8 = idNumber.substring(6,14);
         if (isDate8(date8) == false) {
            return false;
         }
         // calculate the sum of the products
         for(i=0;i<17;i++) {
             lngProduct = lngProduct + varArray[i];
         }
         // calculate the check digit
         intCheckDigit = parityBit[lngProduct % 11];
         // check last digit
         if (varArray[17].toUpperCase() != intCheckDigit.toUpperCase()) {
             return false;
         }
     }
     else{        //length is 15
         //check date
         var date6 = idNumber.substring(6,12);
         if (isDate6(date6) == false) {

             return false;
         }
     }
     return true;

 }

/**
 * 判断是否为“YYYYMM”式的时期
 *
 */
function isDate6(sDate) {
   if(!/^[0-9]{6}$/.test(sDate)) {
      return false;
   }
   var year, month, day;
   year = sDate.substring(0, 4);
   month = sDate.substring(4, 6);
   if (year < 1700 || year > 2500) return false
   if (month < 1 || month > 12) return false
   return true
}
/**
 * 判断是否为“YYYYMMDD”式的时期
 *
 */
function isDate8(sDate) {
   if(!/^[0-9]{8}$/.test(sDate)) {
      return false;
   }
   var year, month, day;
   year = sDate.substring(0, 4);
   month = sDate.substring(4, 6);
   day = sDate.substring(6, 8);
   var iaMonthDays = [31,28,31,30,31,30,31,31,30,31,30,31]
   if (year < 1700 || year > 2500) return false
   if (((year % 4 == 0) && (year % 100 != 0)) || (year % 400 == 0)) iaMonthDays[1]=29;
   if (month < 1 || month > 12) return false
   if (day < 1 || day > iaMonthDays[month - 1]) return false
   return true
}