idCard.js

 $('#birthday').datetimepicker({
        format: 'yyyy-mm-dd',
        autoclose: true,
        language: 'zh-CN',
        todayBtn:  true,
         minView: 'month'

      });

      /**生成身份证号**/
      function generateId(){
        toastr.options.positionClass = 'toast-center-center';
        toastr.options.timeOut = 1000;
       
        var province =$('#province').val();
        var city =$('#city').val();
        var county =$('#county').val();
        var birthday = $('#birthday').val();
        var sex= $('input[name="sex"]:checked').val();
        var flag =true;
        if(province =='-1'){
          toastr.warning('请选择省份!');
          flag =false;
        }
        if(city =='-1'){
          toastr.warning('请选择城市!');
          flag =false;
        }
        if(county =='-1'){
          toastr.warning('请选择区县!');
          flag =false;
        }
        if(birthday ==''){
          toastr.warning('请选择时间!');
          flag =false;
        }
       if(sex ==undefined || sex ==''){
          toastr.warning('请选择性别!');
          flag =false;
        }
        if(!flag){
            return;
        }   
        var IDcard;
        var bd =birthday.replace(/\-/g,"");  
        var Rand = Math.floor(100+Math.random()*(999-100));
        if(sex =='1'){
          if(Rand%2==0){
            Rand+=1;
          }
        }else if(sex =='2'){
         if(Rand%2!=0){
            Rand+=1;
          }
        }
        IDcard = county+bd+Rand;
        var verify = getVerifyCode(IDcard);
        IDcard = IDcard+verify;
        $('#IDCard').val(IDcard);
      }

      /**
        获得身份证校验位
      **/
      var getVerifyCode=function(IDcard){
        var ValCodeArr = ["1", "0", "X", "9", "8", "7", "6", "5", "4","3","2"];
        var Wi = ["7", "9", "10", "5", "8", "4", "2", "1", "6", "3", "7","9", "10", "5", "8", "4", "2"];
        var tmp=0;
        for (var i =0; i <Wi.length; i++) {
              tmp +=IDcard.charAt(i)*Wi[i];
        }
        var modValue = tmp % 11;
        var strVerifyCode = ValCodeArr[modValue];
        return strVerifyCode;
      }

    /**
     * 检查输入的身份证号格式是否正确 
     * 输入:
     * str 字符串 
     */
    function checkCard() {
      toastr.options.positionClass = 'toast-center-center';
      toastr.options.timeOut = 1000;

      var str = $('#IDCard').val();
      if(str ==''){
        toastr.warning('请生成身份证号码!');
        return;
      }
      // 15位数身份证正则表达式
      var arg1 = /^[1-9]\d{7}((0\d)|(1[0-2]))(([0|1|2]\d)|3[0-1])\d{3}$/;
      // 18位数身份证正则表达式
      var arg2 = /^[1-9]\d{5}[1-9]\d{3}((0\d)|(1[0-2]))(([0|1|2]\d)|3[0-1])((\d{4})|\d{3}[xX])$/;
      if (str.match(arg1) == null && str.match(arg2) == null) {
          toastr.warning('证件号码格式错误!');
        return;
      } else{
         toastr.info('正确格式身份证号码');
      }
   }