身份证号码验证兼15位转18位程序
  今个想用个身份证号码验证程序,从网上找了个半天,没有找到客户端(javascript)版的,于是就做了个。想用的就把HTML标签之间的考到一个扩展名为HTML的文件中,就可以使了。
   本程序没有判断前6位地区编码,因为我这也没有这方面的资料,有兴趣的朋友自己要费点力了!其实也没有这么复杂,我们又不是查户口的要这么细干什么,呵呵!
   用程序的朋友随便改好了,也不是很难。但是转载的朋友可不要乱删注释呀!


 

<html>

     <body>

         <form>

              <script language=javascript>

              <!--

              /********************************************************************************************

              * 身份证号码验证程序(JAVASCRIPT版)

              *    时间:   2005年9月14

              *    作者:   王飞    

              *    邮箱:   feiboy@126.com     QQ:106469321 

              *    地址:   山东省东营市

              *    ★文章转载请保留本注释信息,谢谢合作★

              *

              *本程序为示例程序,使用可根据本程序进行修改。

              ********************************************************************************************/

        

             

              /************************************************************************************************

              *    身份证号码验证程序

              *    函数一:checkCard(cId) 身份号码检验函数

              *        参数cId为要验证的身份证号码,返回值为true时,验证通过。

              *        对一些位置保留了alert()的注释,可供朋友调试使用

              *    函数二:C15ToC18(c15)  15位身份证号码升级为18位函数

              *        参数c15为要转换的15位身份证号码,返回值为转化后的18位号码

              *         如果参数不是有效15位号码,返回值为"undefined"

              *    函数三:isdate(intYear,intMonth,intDay) 日期检验函数

              *        参数分别是年月日,返回值为true时,验证通过。

              ************************************************************************************************/

             

                   //检查年月日是否是合法日期

                   function isdate(intYear,intMonth,intDay){

                      if(isNaN(intYear)||isNaN(intMonth)||isNaN(intDay)) return false;    

                      if(intMonth>12||intMonth<1) return false; 

                      if ( intDay<1||intDay>31)return false; 

                      if((intMonth==4||intMonth==6||intMonth==9||intMonth==11)&&(intDay>30)) return false; 

                      if(intMonth==2){ 

                         if(intDay>29) return false;   

                         if((((intYear%100==0)&&(intYear%400!=0))||(intYear%4!=0))&&(intDay>28))return false; 

                        } 

                      return true; 

                   } 

 

                   //检查身份证是否是正确格式

                   function checkCard(cId)

                   {

                       var pattern;

                            if (cId.length==15)

                            {

                                 pattern= /^\d{15}$/;//正则表达式,15位且全是数字

                                 if (pattern.exec(cId)==null)

                                 {

                                 //   alert("15位身份证号码必须为数字!")

                                      return false;

                                 }

                                 if (!isdate("19"+cId.substring(6,8),cId.substring(8,10),cId.substring(10,12)))

                                 {

                            //   alert("身份证号码中所含日期不正确")

                                 return false;}

                                

                            }

                            else     if (cId.length==18)

                            {

                                 pattern= /^\d{17}(\d|x|X)$/;//正则表达式,18位且前17位全是数字,最后一位只能数字,x,X

                                 if (pattern.exec(cId)==null)

                                 {

                                     //       alert("18位身份证号码必须为数字!")

                                          return false;

                                 }

                                 if (!isdate(cId.substring(6,10),cId.substring(10,12),cId.substring(12,14)))

                                 {

                                     //   alert("身份证号码中所含日期不正确")

                                 return false;

                                 }

                                 var strJiaoYan  =[  "1", "0", "X", "9", "8", "7", "6", "5", "4", "3", "2"];

                                 var intQuan =[7, 9, 10, 5, 8, 4, 2, 1, 6, 3, 7, 9, 10, 5, 8, 4, 2, 1];

                                 var intTemp=0;

                                 for(i = 0; i < cId.length - 1; i++)

                                 intTemp +=  cId.substring(i, i + 1)  * intQuan[i]; 

                                 intTemp %= 11;

                                 if(cId.substring(cId.length - 1,cId.length).toUpperCase()!=strJiaoYan[intTemp])

                                 {

                                     //   alert("验证码失败!")

                                 return false;

                                 }

                            }

                            else

                            {

                            alert("长度必须为1518")

                            return false;

                            }

                    return true;  

                   }

                   //升级15位身份证号码到18

                   function C15ToC18(c15)

                   {

                       var cId;

                       if (c15.length==15)

                            {

                                 pattern= /^\d{15}$/;

                                 if (pattern.exec(c15)==null)

                                 {

                                     //   alert("15位身份证号码必须为数字!")

                                      return  ;

                                 }

                                 if (!isdate("19"+c15.substring(6,8),c15.substring(8,10),c15.substring(10,12)))

                                 {

                                     //alert("身份证号码中所含日期不正确")

                                 return  ;

                                 }

                                cId=c15.substring(0,6)+"19"+c15.substring(6,15);

                                 var strJiaoYan  =[  "1", "0", "X", "9", "8", "7", "6", "5", "4", "3", "2"];

                                 var intQuan =[7, 9, 10, 5, 8, 4, 2, 1, 6, 3, 7, 9, 10, 5, 8, 4, 2, 1];

                                 var intTemp=0;

                                 for(i = 0; i < cId.length - 1; i++)

                                 intTemp +=  cId.substring(i, i + 1)  * intQuan[i]; 

                                 intTemp %= 11;

                                 cId+=+strJiaoYan[intTemp];

                                 return cId;

                            }

                            return;

                   }

              -->

                   </script>

                  

                   <script>

                   /*

                   *除了验证号码是否正确外,多做了让出错控件获取焦点,字体颜色变红的动作,更为实用一些。

                   */

                   function checkSfhm(c)

                   {

                       if (!checkCard(c.value))

                            {

                                 c.style.color="#ff0000";

                                 alert("身份证号码不正确");

                                 c.focus();        

                           

                            }

                            else

                                 c.style.color="#000000";

                   }

                   </script>

                  

                  

         <table>

         <tr>

              <td>

              身份证一 <input type="text" name="hm1" value='371323198301086311' onBlur="javascript:checkSfhm(this);"> <br>

              身份证二 <input type="text" name="hm2" value='371323198301086314' onBlur="javascript:checkSfhm(this);"> <br>

                   <input type="button" onclick="javascript:if(checkCard(hm1.value)) alert('通过')" id="Button1" name="Button1"     value="验证身份证一">

              </td>

         </tr>

         <tr>

              <td>

              15位身份证        <input type="text" name="hm3" value='370783811028671' onBlur="javascript:hm4.value=C15ToC18(this.value)">  <br>

              转化后身份证  <input type="text" name="hm4" value=''> <br>

                   <input type="button" onclick="javascript:hm4.value=C15ToC18(hm3.value);" id="Button2" name="Button2"value="      ">

              </td>

         </tr>

                   </table>

         </form>

     </body>

</html>