一些有用的js正则验证（是否为空，是否为正整数，email,手机,电话，身份证）

dojo.provide("common.util.validate");

common.util.validate = {

   isBlank : function(value) {

      if (typeof (value) == "undefinded" || value == null) {

         return true;

      }

      if (typeof (value) != "string") {

         value = value.toString();

      }

      var v = dojo.string.trim(value);

      if (v.length == 0) {

         return true;

      }

      return false;

   },

   isPositiveInteger : function(number) {

      var reg = /^[0-9]*[1-9][0-9]*$/;

      if (!reg.test(number)) {

         return false;

      }

      return true;

   },

   isValidEmail : function(mail) {

      var EMAIL = /^\w+((-\w+)|(\.\w+))*\@[A-Za-z0-9]+((\.|-)[A-Za-z0-9]+)*\.[A-Za-z0-9]+$/;

      if (!EMAIL.test(mail)) {

         return false;

      }

      return true;

   },

   isValidPhoneNum : function(number) {

      var PHONE = /^(((13[0-9]{1})|(15[0-9]{1})|(18[0-9]{1}))+\d{8})$/;

      if (!PHONE.test(number)) {

         return false;

      }

      return true;

   },

   isElevenNumString : function(number) {

      var ELEVEN_NUM_STRING = /^\d{11}$/;

      if (!ELEVEN_NUM_STRING.test(number)) {

         return false;

      }

      return true;

   },

   isAreaCodeString : function(number) {

      var AREA_CODE_STRING = /^0\d{2,3}$/;

      if (!AREA_CODE_STRING.test(number)) {

         return false;

      }

      return true;

   },

   isValidFixPhoneNum : function(number) {

      var FIX_PHONE = /^((0\d{2,3})-)(\d{7,8})((-(\d{1,4})(\/(\d{1,4}))*)?)$/;

      if (!FIX_PHONE.test(number)) {

         return false;

      }

      return true;

   },

   isIdNo : function(num) {

      num = num.toUpperCase();

      // 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。

      if (!(/(^\d{15}$)|(^\d{17}([0-9]|X)$)/.test(num))) {

         return false;

      }

      //校验位按照ISO 7064:1983.MOD 11-2的规定生成，X可以认为是数字10。

      // 下面分别分析出生日期和校验位

      var len, re;

      len = num.length;

      if (len == 15) {

         re = new RegExp(/^(\d{6})(\d{2})(\d{2})(\d{2})(\d{3})$/);

         var arrSplit = num.match(re);

         // 检查生日日期是否正确

         var dtmBirth = new Date('19' + arrSplit[2] + '/' + arrSplit[3] + '/'

               + arrSplit[4]);

         var bGoodDay;

         bGoodDay = (dtmBirth.getYear() == Number(arrSplit[2]))

               && ((dtmBirth.getMonth() + 1) == Number(arrSplit[3]))

               && (dtmBirth.getDate() == Number(arrSplit[4]));

         if (!bGoodDay) {

            return false;

         } else {

            //将15位身份证转成18位

            // 校验位按照ISO 7064:1983.MOD 11-2的规定生成，X可以认为是数字10。

            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 nTemp = 0, i;

            num = num.substr(0, 6) + '19' + num.substr(6, num.length - 6);

            for (i = 0; i < 17; i++) {

               nTemp += num.substr(i, 1) * arrInt[i];

            }

            num += arrCh[nTemp % 11];

            return num;

         }

      }

      if (len == 18) {

         re = new RegExp(/^(\d{6})(\d{4})(\d{2})(\d{2})(\d{3})([0-9]|X)$/);

         var arrSplit = num.match(re);

         // 检查生日日期是否正确

         var dtmBirth = new Date(arrSplit[2] + "/" + arrSplit[3] + "/"

               + arrSplit[4]);

         var bGoodDay;

         bGoodDay = (dtmBirth.getFullYear() == Number(arrSplit[2]))

               && ((dtmBirth.getMonth() + 1) == Number(arrSplit[3]))

               && (dtmBirth.getDate() == Number(arrSplit[4]));

         if (!bGoodDay) {

            return false;

         } else {

            //检验18位身份证的校验码是否正确。

            // 校验位按照ISO 7064:1983.MOD 11-2的规定生成，X可以认为是数字10。

            var valnum;

            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 nTemp = 0, i;

            for (i = 0; i < 17; i++) {

               nTemp += num.substr(i, 1) * arrInt[i];

            }

            valnum = arrCh[nTemp % 11];

            if (valnum != num.substr(17, 1)) {

               return false;

            }

            return num;

         }

      }

      return false;

   }

}