Javasript 身份证号码验证

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<HTML>
<HEAD>
<TITLE> See </TITLE>
<META NAME="Generator" CONTENT="EditPlus">
<META NAME="Author" CONTENT="">
<META NAME="Keywords" CONTENT="">
<META NAME="Description" CONTENT="">
<SCRIPT LANGUAGE="JavaScript">
<!--
function checkIdcard(){
var idcard = document.getElementById("empno").value.replace(/(^/s*)|(/s*$)/g, "");
var Errors=new Array(
  "验证通过!",
  "身份证号码位数不对!",
  "身份证号码出生日期超出范围或含有非法字符!",
  "身份证号码校验错误!",
  "身份证地区非法(前2位错误)!" );

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:"*",61:"陕西",62:"甘肃",63:"青海",64:"宁夏",65:"*",71:"*",81:"香港",82:"澳门",91:"国外"}

var idcard,Y,JYM;
var S,M;
var idcard_array = new Array();
idcard_array = idcard.split("");

if(area[parseInt(idcard.substr(0,2))]==null)
{
  alert(Errors[4]);
  idcard.focus();
  return false;
}

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}$/;
  }
  else
  {
   ereg=/^[1-9][0-9]{5}[0-9]{2}((01|03|05|07|08|10|12)(0[1-9]|[1-2][0-9]|3[0-1])|(04|06|09|11)(0[1-9]|[1-2][0-9]|30)|02(0[1-9]|1[0-9]|2[0-8]))[0-9]{3}$/;
  }
  if(ereg.test(idcard))
  {
   alert(Errors[0]);
   return true;
  }
  else
  {
   alert(Errors[2]);
   return false;
  }
  break;

case 18:
  today=new Date();
  if(parseInt(idcard.substr(6,4)) > parseInt(today.getYear()))
  {
   alert("出生年份"+parseInt(idcard.substr(6,4))+"不能大于当前年份"+today.getYear());
   return false;
  }
  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}(19|20)[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}[0-9Xx]$/;//闰年出生日期的合法性正则表达式
  }
  else
  {
   ereg=/^[1-9][0-9]{5}(19|20)[0-9]{2}((01|03|05|07|08|10|12)(0[1-9]|[1-2][0-9]|3[0-1])|(04|06|09|11)(0[1-9]|[1-2][0-9]|30)|02(0[1-9]|1[0-9]|2[0-8]))[0-9]{3}[0-9Xx]$/;//平年出生日期的合法性正则表达式
  }
  if(ereg.test(idcard))
  {
   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);
   if(M == idcard_array[17])
   {
    alert(Errors[0]);
    return true;
   }
   else
   {
    alert(Errors[3]);
    return false;
   }
  }
  else
  {
   alert(Errors[2]);
   return false;
  }
  break;
default:
  alert(Errors[1]);
  return false;
  break;
}
}
//-->
</SCRIPT>
</HEAD>

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Javasript 身份证号码验证

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