function scCard(){ var scType=document.getElementById("sc_card_type").value; if(scType=="1"){ var scCard=document.getElementById("sc_card_num").value; if(scCard.length!=0){ if(!checkCard(scCard)){ $("#errorTips").html("身份证号码格式错误"); }else{ $("#errorTips").html(""); } } } return false; } //function checkidno(obj) { var vcity={ 11:"北京",12:"天津",13:"河北",14:"山西",15:"内蒙古", 21:"辽宁",22:"吉林",23:"黑龙江",31:"上海",32:"江苏", 33:"浙江",34:"安徽",35:"福建",36:"江西",37:"山东",41:"河南", 42:"湖北",43:"湖南",44:"广东",45:"广西",46:"海南",50:"重庆", 51:"四川",52:"贵州",53:"云南",54:"西藏",61:"陕西",62:"甘肃", 63:"青海",64:"宁夏",65:"新疆",71:"台湾",81:"香港",82:"澳门",91:"国外" }; checkCard = function(obj) { //var card = document.getElementById('card_no').value; //是否为空 // if(card === '') // { // return false; //} //校验长度，类型 if(isCardNo(obj) === false) { return false; } //检查省份 if(checkProvince(obj) === false) { return false; } //校验生日 if(checkBirthday(obj) === false) { return false; } //检验位的检测 if(checkParity(obj) === false) { return false; } return true; }; //检查号码是否符合规范，包括长度，类型 isCardNo = function(obj) { //身份证号码为15位或者18位，15位时全为数字，18位前17位为数字，最后一位是校验位，可能为数字或字符X var reg = /(^\d{15}$)|(^\d{17}(\d|X)$)/; if(reg.test(obj) === false) { return false; } return true; }; //取身份证前两位,校验省份 checkProvince = function(obj) { var province = obj.substr(0,2); if(vcity[province] == undefined) { return false; } return true; }; //检查生日是否正确 checkBirthday = function(obj) { var len = obj.length; //身份证15位时，次序为省（3位）市（3位）年（2位）月（2位）日（2位）校验位（3位），皆为数字 if(len == '15') { var re_fifteen = /^(\d{6})(\d{2})(\d{2})(\d{2})(\d{3})$/; var arr_data = obj.match(re_fifteen); var year = arr_data[2]; var month = arr_data[3]; var day = arr_data[4]; var birthday = new Date('19'+year+'/'+month+'/'+day); return verifyBirthday('19'+year,month,day,birthday); } //身份证18位时，次序为省（3位）市（3位）年（4位）月（2位）日（2位）校验位（4位），校验位末尾可能为X if(len == '18') { var re_eighteen = /^(\d{6})(\d{4})(\d{2})(\d{2})(\d{3})([0-9]|X)$/; var arr_data = obj.match(re_eighteen); var year = arr_data[2]; var month = arr_data[3]; var day = arr_data[4]; var birthday = new Date(year+'/'+month+'/'+day); return verifyBirthday(year,month,day,birthday); } return false; }; //校验日期 verifyBirthday = function(year,month,day,birthday) { var now = new Date(); var now_year = now.getFullYear(); //年月日是否合理 if(birthday.getFullYear() == year && (birthday.getMonth() + 1) == month && birthday.getDate() == day) { //判断年份的范围（3岁到100岁之间) var time = now_year - year; if(time >= 0 && time <= 130) { return true; } return false; } return false; }; //校验位的检测 checkParity = function(obj) { //15位转18位 obj = changeFivteenToEighteen(obj); var len = obj.length; if(len == '18') { var arrInt = new Array(7, 9, 10, 5, 8, 4, 2, 1, 6, 3, 7, 9, 10, 5, 8, 4, 2); var arrCh = new Array('1', '0', 'X', '9', '8', '7', '6', '5', '4', '3', '2'); var cardTemp = 0, i, valnum; for(i = 0; i < 17; i ++) { cardTemp += obj.substr(i, 1) * arrInt[i]; } valnum = arrCh[cardTemp % 11]; if (valnum == obj.substr(17, 1)) { return true; } return false; } return false; }; //15位转18位身份证号 changeFivteenToEighteen = function(obj) { if(obj.length == '15') { var arrInt = new Array(7, 9, 10, 5, 8, 4, 2, 1, 6, 3, 7, 9, 10, 5, 8, 4, 2); var arrCh = new Array('1', '0', 'X', '9', '8', '7', '6', '5', '4', '3', '2'); var cardTemp = 0, i; obj = obj.substr(0, 6) + '19' + obj.substr(6, obj.length - 6); for(i = 0; i < 17; i ++) { cardTemp += obj.substr(i, 1) * arrInt[i]; } obj += arrCh[cardTemp % 11]; return obj; } return obj; };转自：http://blog.csdn.net/zxl333/article/details/7071127
