js 验证身份证

js 验证身份证 function checkIdcard(idcards){ var idcard=idcards.value; 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!"); 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:"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 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]); 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}$/;//测试出生日期的合法性 } else{ ereg = /^[1-9][0-9]{5}[0-9]{2}((01|03|05|07|08|10|12)(0[1-9]|[1-2][0-9]|3[0-1])|(04|06|09|11)(0[1-9]|[1-2][0-9]|30)|02(0[1-9]|1[0-9]|2[0-8]))[0-9]{3}$/;//测试出生日期的合法性 } if(ereg.test(idcard)) alert( Errors[0]); else alert( Errors[2]); break; case 18: 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[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]$/;//闰年出生日期的合法性正则 表达式 } else{ ereg = /^[1-9][0-9]{5}19[0-9]{2}((01|03|05|07|08|10|12)(0[1-9]|[1-2][0-9]|3[0-1])|(04|06|09|11)(0[1-9]|[1-2][0-9]|30)|02(0[1-9]|1[0-9]|2[0-8]))[0-9]{3}[0-9Xx]$/;//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]); else alert( Errors[3]); } else alert( Errors[2]); break; default: alert( Errors[1]); break; } }