/*$RCSfile: commons-validator.js,v $ $Rev: 376673 $ $Date: 2006/07/03 16:22:33 $ */
    /**
    * Check to see if fields are a valid using a regular expression.
    * Fields are not checked if they are disabled.
    * <p>
    * @param form The form validation is taking place on.
    *
    * Modified by Michael Vogel
    */
    var emptyString = /^\s*$/
    		    
    function notEmpty(str) {
		//alert( str );
		if (emptyString.test(str)){
			return false;
		} else {  
			return true;
		}
	}
    
    function validateMask(form) {
        var isValid = true;
        var focusField = null;
        var i = 0;
        var fields = new Array();
 
        var oMasked = eval('new ' + jcv_retrieveFormName(form) +  '_mask()');      
        for (var x in oMasked) {
            if (!jcv_verifyArrayElement(x, oMasked[x])) {
                continue;
            }
            var field = form[oMasked[x][0]];
            if (!jcv_isFieldPresent(field)) {
              continue;
            }

            if ((field.type == 'hidden' ||
                field.type == 'text' ||
                 field.type == 'textarea' ||
				 field.type == 'file') &&
                 (field.value.length > 0)) {

                if (!jcv_matchPattern(field.value, oMasked[x][2]("mask"))) {
                    if (i == 0) {
                        focusField = field;
                    }
                    fields[i++] = oMasked[x][1];
                    isValid = false;
                }
            }
        }

        if (fields.length > 0) {
           jcv_handleErrors(fields, focusField);
        }
        return isValid;
    }

    function jcv_matchPattern(value, mask) {
       return mask.exec(value);
    }

    /*$RCSfile: commons-validator.js,v $ $Rev: 376673 $ $Date: 2006/07/03 16:22:33 $ */
    /**
    * Check to see if fields are a valid integer.
    * Fields are not checked if they are disabled.
    * <p>
    * @param form The form validation is taking place on.
    */
    function validateInteger(form) {
        var bValid = true;
        var focusField = null;
        var i = 0;
        var fields = new Array();
 
        var oInteger = eval('new ' + jcv_retrieveFormName(form) +  '_IntegerValidations()');
        for (var x in oInteger) {
            if (!jcv_verifyArrayElement(x, oInteger[x])) {
                continue;
            }
            var field = form[oInteger[x][0]];
            if (!jcv_isFieldPresent(field)) {
              continue;
            }

            if ((field.type == 'hidden' ||
                field.type == 'text' ||
                field.type == 'textarea' ||
                field.type == 'select-one' ||
                field.type == 'radio')) {

                var value = '';
                // get field's value
                if (field.type == "select-one") {
                    var si = field.selectedIndex;
                    if (si >= 0) {
                        value = field.options[si].value;
                    }
                } else {
                    value = field.value;
                }

                if (value.length > 0) {

                    if (!jcv_isDecimalDigits(value)) {
                        bValid = false;
                        if (i == 0) {
                            focusField = field;
                        }
                        fields[i++] = oInteger[x][1];

                    } else {
                        var iValue = parseInt(value, 10);
                        if (isNaN(iValue) || !(iValue >= -2147483648 && iValue <= 2147483647)) {
                            if (i == 0) {
                                focusField = field;
                            }
                            fields[i++] = oInteger[x][1];
                            bValid = false;
                       }
                   }
               }
            }
        }
        if (fields.length > 0) {
           jcv_handleErrors(fields, focusField);
        }
        return bValid;
    }

    /*$RCSfile: commons-validator.js,v $ $Rev: 376673 $ $Date: 2006/07/03 16:22:33 $ */
    /**
    *  Check to see if fields are a valid short.
    * Fields are not checked if they are disabled.
    * <p>
    * @param form The form validation is taking place on.
    */
    function validateShort(form) {
        var bValid = true;
        var focusField = null;
        var i = 0;
        var fields = new Array();
 
        var oShort = eval('new ' + jcv_retrieveFormName(form) +  '_ShortValidations()');

        for (var x in oShort) {
            if (!jcv_verifyArrayElement(x, oShort[x])) {
                continue;
            }
            var field = form[oShort[x][0]];
            if (!jcv_isFieldPresent(field)) {
              continue;
            }

            if ((field.type == 'hidden' ||
                field.type == 'text' ||
                field.type == 'textarea' ||
                field.type == 'select-one' ||
                field.type == 'radio')) {

                var value = '';
                // get field's value
                if (field.type == "select-one") {
                    var si = field.selectedIndex;
                    if (si >= 0) {
                        value = field.options[si].value;
                    }
                } else {
                    value = field.value;
                }

                if (value.length > 0) {
                    if (!jcv_isDecimalDigits(value)) {
                        bValid = false;
                        if (i == 0) {
                            focusField = field;
                        }
                        fields[i++] = oShort[x][1];

                    } else {

                        var iValue = parseInt(value, 10);
                        if (isNaN(iValue) || !(iValue >= -32768 && iValue <= 32767)) {
                            if (i == 0) {
                                focusField = field;
                            }
                            fields[i++] = oShort[x][1];
                            bValid = false;
                        }
                   }
               }
            }
        }
        if (fields.length > 0) {
           jcv_handleErrors(fields, focusField);
        }
        return bValid;
    }

    /*$RCSfile: commons-validator.js,v $ $Rev: 376673 $ $Date: 2006/07/03 16:22:33 $ */
    /**
    * Check to see if fields are a valid byte.
    * Fields are not checked if they are disabled.
    * <p>
    * @param form The form validation is taking place on.
    */
    function validateByte(form) {
        var bValid = true;
        var focusField = null;
        var i = 0;
        var fields = new Array();
        
        var oByte = eval('new ' + jcv_retrieveFormName(form) + '_ByteValidations()');

        for (var x in oByte) {
            if (!jcv_verifyArrayElement(x, oByte[x])) {
                continue;
            }
            var field = form[oByte[x][0]];
            if (!jcv_isFieldPresent(field)) {
              continue;
            }

            if ((field.type == 'hidden' ||
                field.type == 'text' ||
                field.type == 'textarea' ||
                field.type == 'select-one' ||
                field.type == 'radio')) {

                var value = '';
                // get field's value
                if (field.type == "select-one") {
                    var si = field.selectedIndex;
                    if (si >= 0) {
                        value = field.options[si].value;
                    }
                } else {
                    value = field.value;
                }

                if (value.length > 0) {
                    if (!jcv_isDecimalDigits(value)) {
                        bValid = false;
                        if (i == 0) {
                            focusField = field;
                        }
                        fields[i++] = oByte[x][1];

                    } else {

                        var iValue = parseInt(value, 10);
                        if (isNaN(iValue) || !(iValue >= -128 && iValue <= 127)) {
                            if (i == 0) {
                                focusField = field;
                            }
                            fields[i++] = oByte[x][1];
                            bValid = false;
                        }
                    }
                }

            }
        }
        if (fields.length > 0) {
           jcv_handleErrors(fields, focusField);
        }
        return bValid;
    }

    /*$RCSfile: commons-validator.js,v $ $Rev: 376673 $ $Date: 2006/07/03 16:22:33 $ */
    /**
    * Check to see if fields are a valid creditcard number based on Luhn checksum.
    * Fields are not checked if they are disabled.
    * <p>
    * @param form The form validation is taking place on.
    */
    function validateCreditCard(form) {
        var bValid = true;
        var focusField = null;
        var i = 0;
        var fields = new Array();
 
        var oCreditCard = eval('new ' + jcv_retrieveFormName(form) +  '_creditCard()');

        for (var x in oCreditCard) {
            if (!jcv_verifyArrayElement(x, oCreditCard[x])) {
                continue;
            }
            var field = form[oCreditCard[x][0]];
            if (!jcv_isFieldPresent(field)) {
              continue;
            }
            if ((field.type == 'text' ||
                 field.type == 'textarea') &&
                (field.value.length > 0)) {
                if (!jcv_luhnCheck(field.value)) {
                    if (i == 0) {
                        focusField = field;
                    }
                    fields[i++] = oCreditCard[x][1];
                    bValid = false;
                }
            }
        }
        if (fields.length > 0) {
            jcv_handleErrors(fields, focusField);
        }
        return bValid;
    }

    /**
     * Checks whether a given credit card number has a valid Luhn checksum.
     * This allows you to spot most randomly made-up or garbled credit card numbers immediately.
     * Reference: http://www.speech.cs.cmu.edu/~sburke/pub/luhn_lib.html
     */
    function jcv_luhnCheck(cardNumber) {
        if (jcv_isLuhnNum(cardNumber)) {
            var no_digit = cardNumber.length;
            var oddoeven = no_digit & 1;
            var sum = 0;
            for (var count = 0; count < no_digit; count++) {
                var digit = parseInt(cardNumber.charAt(count));
                if (!((count & 1) ^ oddoeven)) {
                    digit *= 2;
                    if (digit > 9) digit -= 9;
                };
                sum += digit;
            };
            if (sum == 0) return false;
            if (sum % 10 == 0) return true;
        };
        return false;
    }

    function jcv_isLuhnNum(argvalue) {
        argvalue = argvalue.toString();
        if (argvalue.length == 0) {
            return false;
        }
        for (var n = 0; n < argvalue.length; n++) {
            if ((argvalue.substring(n, n+1) < "0") ||
                (argvalue.substring(n,n+1) > "9")) {
                return false;
            }
        }
        return true;
    }

    /*$RCSfile: commons-validator.js,v $ $Rev: 376673 $ $Date: 2006/07/03 16:22:33 $ */
    /**
    * Check to see if fields are a valid float.
    * Fields are not checked if they are disabled.
    * <p>
    * @param form The form validation is taking place on.
    */
    function validateFloat(form) {
        var bValid = true;
        var focusField = null;
        var i = 0;
        var fields = new Array();
 
        var oFloat = eval('new ' + jcv_retrieveFormName(form) +  '_FloatValidations()');
        for (var x in oFloat) {
            if (!jcv_verifyArrayElement(x, oFloat[x])) {
                continue;
            }
        	var field = form[oFloat[x][0]];
            if (!jcv_isFieldPresent(field)) {
              continue;
            }
        	
            if ((field.type == 'hidden' ||
                field.type == 'text' ||
                field.type == 'textarea' ||
                field.type == 'select-one' ||
                field.type == 'radio')) {
        
            	var value = '';
                // get field's value
                if (field.type == "select-one") {
                    var si = field.selectedIndex;
                    if (si >= 0) {
                        value = field.options[si].value;
                    }
                } else {
                    value = field.value;
                }
        
                if (value.length > 0) {
                    // remove '.' before checking digits
                    var tempArray = value.split('.');
                    //Strip off leading '0'
                    var zeroIndex = 0;
                    var joinedString= tempArray.join('');
                    while (joinedString.charAt(zeroIndex) == '0') {
                        zeroIndex++;
                    }
                    var noZeroString = joinedString.substring(zeroIndex,joinedString.length);

                    if (!jcv_isAllDigits(noZeroString) || tempArray.length > 2) {
                        bValid = false;
                        if (i == 0) {
                            focusField = field;
                        }
                        fields[i++] = oFloat[x][1];

                    } else {
	                var iValue = parseFloat(value);
	                if (isNaN(iValue)) {
	                    if (i == 0) {
	                        focusField = field;
	                    }
	                    fields[i++] = oFloat[x][1];
	                    bValid = false;
	                }
                    }
                }
            }
        }
        if (fields.length > 0) {
           jcv_handleErrors(fields, focusField);
        }
        return bValid;
    }

    /*$RCSfile: commons-validator.js,v $ $Rev: 376673 $ $Date: 2006/07/03 16:22:33 $ */
    /**
    * Check to see if fields is in a valid integer range.
    * Fields are not checked if they are disabled.
    * <p>
    * @param form The form validation is taking place on.
    */
    function validateIntRange(form) {
        var isValid = true;
        var focusField = null;
        var i = 0;
        var fields = new Array();
 
        var oRange = eval('new ' + jcv_retrieveFormName(form) +  '_intRange()');        
        for (var x in oRange) {
            if (!jcv_verifyArrayElement(x, oRange[x])) {
                continue;
            }
            var field = form[oRange[x][0]];
            if (jcv_isFieldPresent(field)) {
                var value = '';
                if (field.type == 'hidden' ||
                    field.type == 'text' || field.type == 'textarea' ||
                    field.type == 'radio' ) {
                    value = field.value;
                }
                if (field.type == 'select-one') {
                    var si = field.selectedIndex;
                    if (si >= 0) {
                        value = field.options[si].value;
                    }
                }
                if (value.length > 0) {
                    var iMin = parseInt(oRange[x][2]("min"));
                    var iMax = parseInt(oRange[x][2]("max"));
                    var iValue = parseInt(value, 10);
                    if (!(iValue >= iMin && iValue <= iMax)) {
                        if (i == 0) {
                            focusField = field;
                        }
                        fields[i++] = oRange[x][1];
                        isValid = false;
                    }
                }
            }
        }
        if (fields.length > 0) {
            jcv_handleErrors(fields, focusField);
        }
        return isValid;
    }
    /*$RCSfile: commons-validator.js,v $ $Rev: 376673 $ $Date: 2006/07/03 16:22:33 $ */

  /**
  * This is a place holder for common utilities used across the javascript validation
  *
  **/

  /**
   * Retreive the name of the form
   * @param form The form validation is taking place on.
   */
  function jcv_retrieveFormName(form) {

      // Please refer to Bugs 31534, 35127, 35294, 37315 & 38159
      // for the history of the following code

      var formName;

      if (form.getAttributeNode) {
          if (form.getAttributeNode("id") && form.getAttributeNode("id").value) {
              formName = form.getAttributeNode("id").value;
          } else {
              formName = form.getAttributeNode("name").value;
          }
      } else if (form.getAttribute) {
          if (form.getAttribute("id")) {
              formName = form.getAttribute("id");
          } else {
              formName = form.attributes["name"];
          }
      } else {
          if (form.id) {
              formName = form.id;
          } else {
              formName = form.name;
          }
      }

      return formName;

  }  

  /**
   * Handle error messages.
   * @param messages Array of error messages.
   * @param focusField Field to set focus on.
   */
  function jcv_handleErrors(messages, focusField) {
      if (focusField && focusField != null) {
          var doFocus = true;
          if (focusField.disabled || focusField.type == 'hidden') {
              doFocus = false;
          }
          if (doFocus && 
              focusField.style && 
              focusField.style.visibility &&
              focusField.style.visibility == 'hidden') {
              doFocus = false;
          }
          if (doFocus) {
              focusField.focus();
          }
      }
      alert(messages.join('\n'));
  }

  /**
   * Checks that the array element is a valid
   * Commons Validator element and not one inserted by
   * other JavaScript libraries (for example the
   * prototype library inserts an "extends" into
   * all objects, including Arrays).
   * @param name The element name.
   * @param value The element value.
   */
  function jcv_verifyArrayElement(name, element) {
      if (element && element.length && element.length == 3) {
          return true;
      } else {
          return false;
      }
  }

  /**
   * Checks whether the field is present on the form.
   * @param field The form field.
   */
  function jcv_isFieldPresent(field) {
      var fieldPresent = true;
      if (field == null || field == undefined) {
          fieldPresent = false;
      } else {
          if (field.disabled) {
              fieldPresent = false;
          }
      }
      return fieldPresent;
  }

  /**
   * Check a value only contains valid numeric digits
   * @param argvalue The value to check.
   */
  function jcv_isAllDigits(argvalue) {
      argvalue = argvalue.toString();
      var validChars = "0123456789";
      var startFrom = 0;
      if (argvalue.substring(0, 2) == "0x") {
         validChars = "0123456789abcdefABCDEF";
         startFrom = 2;
      } else if (argvalue.charAt(0) == "0") {
         validChars = "0123456789";
         startFrom = 1;
      } else if (argvalue.charAt(0) == "-") {
          startFrom = 1;
      }

      for (var n = startFrom; n < argvalue.length; n++) {
          if (validChars.indexOf(argvalue.substring(n, n+1)) == -1) return false;
      }
      return true;
  }

  /**
   * Check a value only contains valid decimal digits
   * @param argvalue The value to check.
   */
  function jcv_isDecimalDigits(argvalue) {
      argvalue = argvalue.toString();
      var validChars = "0123456789";

      var startFrom = 0;
      if (argvalue.charAt(0) == "-") {
          startFrom = 1;
      }

      for (var n = startFrom; n < argvalue.length; n++) {
          if (validChars.indexOf(argvalue.substring(n, n+1)) == -1) return false;
      }
      return true;
  }

   /*$RCSfile: commons-validator.js,v $ $Rev: 376673 $ $Date: 2006/07/03 16:22:33 $ */
    /**
    * Check to see if fields are a valid date.
    * Fields are not checked if they are disabled.
    * <p>
    * @param form The form validation is taking place on.
    */
    function validateDate(form) {
       var bValid = true;
       var focusField = null;
       var i = 0;
       var fields = new Array();
 
       var oDate = eval('new ' + jcv_retrieveFormName(form) +  '_DateValidations()');

       for (var x in oDate) {
            if (!jcv_verifyArrayElement(x, oDate[x])) {
                continue;
            }
           var field = form[oDate[x][0]];
           if (!jcv_isFieldPresent(field)) {
             continue;
           }
           var value = field.value;
           var isStrict = true;
           var datePattern = oDate[x][2]("datePatternStrict");
           // try loose pattern
           if (datePattern == null) {
               datePattern = oDate[x][2]("datePattern");
               isStrict = false;
           }    
           if ((field.type == 'hidden' ||
                field.type == 'text' ||
                field.type == 'textarea') &&
               (value.length > 0) && (datePattern.length > 0)) {
                 var MONTH = "MM";
                 var DAY = "dd";
                 var YEAR = "yyyy";
                 var orderMonth = datePattern.indexOf(MONTH);
                 var orderDay = datePattern.indexOf(DAY);
                 var orderYear = datePattern.indexOf(YEAR);
                 if ((orderDay < orderYear && orderDay > orderMonth)) {
                     var iDelim1 = orderMonth + MONTH.length;
                     var iDelim2 = orderDay + DAY.length;
                     var delim1 = datePattern.substring(iDelim1, iDelim1 + 1);
                     var delim2 = datePattern.substring(iDelim2, iDelim2 + 1);
                     if (iDelim1 == orderDay && iDelim2 == orderYear) {
                        dateRegexp = isStrict 
                             ? new RegExp("^(\\d{2})(\\d{2})(\\d{4})$") 
                             : new RegExp("^(\\d{1,2})(\\d{1,2})(\\d{4})$");
                     } else if (iDelim1 == orderDay) {
                        dateRegexp = isStrict 
                             ? new RegExp("^(\\d{2})(\\d{2})[" + delim2 + "](\\d{4})$")
                             : new RegExp("^(\\d{1,2})(\\d{1,2})[" + delim2 + "](\\d{4})$");
                     } else if (iDelim2 == orderYear) {
                        dateRegexp = isStrict
                             ? new RegExp("^(\\d{2})[" + delim1 + "](\\d{2})(\\d{4})$")
                             : new RegExp("^(\\d{1,2})[" + delim1 + "](\\d{1,2})(\\d{4})$");
                     } else {
                        dateRegexp = isStrict
                             ? new RegExp("^(\\d{2})[" + delim1 + "](\\d{2})[" + delim2 + "](\\d{4})$")
                             : new RegExp("^(\\d{1,2})[" + delim1 + "](\\d{1,2})[" + delim2 + "](\\d{4})$");
                     }
                     var matched = dateRegexp.exec(value);
                     if(matched != null) {
                        if (!jcv_isValidDate(matched[2], matched[1], matched[3])) {
                           if (i == 0) {
                               focusField = field;
                           }
                           fields[i++] = oDate[x][1];
                           bValid =  false;
                        }
                     } else {
                        if (i == 0) {
                            focusField = field;
                        }
                        fields[i++] = oDate[x][1];
                        bValid =  false;
                     }
                 } else if ((orderMonth < orderYear && orderMonth > orderDay)) {
                     var iDelim1 = orderDay + DAY.length;
                     var iDelim2 = orderMonth + MONTH.length;
                     var delim1 = datePattern.substring(iDelim1, iDelim1 + 1);
                     var delim2 = datePattern.substring(iDelim2, iDelim2 + 1);
                     if (iDelim1 == orderMonth && iDelim2 == orderYear) {
                         dateRegexp = isStrict 
                            ? new RegExp("^(\\d{2})(\\d{2})(\\d{4})$")
                            : new RegExp("^(\\d{1,2})(\\d{1,2})(\\d{4})$");
                     } else if (iDelim1 == orderMonth) {
                         dateRegexp = isStrict
                            ? new RegExp("^(\\d{2})(\\d{2})[" + delim2 + "](\\d{4})$")
                            : new RegExp("^(\\d{1,2})(\\d{1,2})[" + delim2 + "](\\d{4})$");
                     } else if (iDelim2 == orderYear) {
                         dateRegexp = isStrict
                            ? new RegExp("^(\\d{2})[" + delim1 + "](\\d{2})(\\d{4})$")
                            : new RegExp("^(\\d{1,2})[" + delim1 + "](\\d{1,2})(\\d{4})$");
                     } else {
                         dateRegexp = isStrict
                            ? new RegExp("^(\\d{2})[" + delim1 + "](\\d{2})[" + delim2 + "](\\d{4})$")
                            : new RegExp("^(\\d{1,2})[" + delim1 + "](\\d{1,2})[" + delim2 + "](\\d{4})$");
                     }
                     var matched = dateRegexp.exec(value);
                     if(matched != null) {
                         if (!jcv_isValidDate(matched[1], matched[2], matched[3])) {
                             if (i == 0) {
                                  focusField = field;
                             }
                             fields[i++] = oDate[x][1];
                             bValid =  false;
                          }
                     } else {
                         if (i == 0) {
                             focusField = field;
                         }
                         fields[i++] = oDate[x][1];
                         bValid =  false;
                     }
                 } else if ((orderMonth > orderYear && orderMonth < orderDay)) {
                     var iDelim1 = orderYear + YEAR.length;
                     var iDelim2 = orderMonth + MONTH.length;
                     var delim1 = datePattern.substring(iDelim1, iDelim1 + 1);
                     var delim2 = datePattern.substring(iDelim2, iDelim2 + 1);
                     if (iDelim1 == orderMonth && iDelim2 == orderDay) {
                         dateRegexp = isStrict
                            ? new RegExp("^(\\d{4})(\\d{2})(\\d{2})$")
                            : new RegExp("^(\\d{4})(\\d{1,2})(\\d{1,2})$");
                     } else if (iDelim1 == orderMonth) {
                         dateRegexp = isStrict
                            ? new RegExp("^(\\d{4})(\\d{2})[" + delim2 + "](\\d{2})$")
                            : new RegExp("^(\\d{4})(\\d{1,2})[" + delim2 + "](\\d{1,2})$");
                     } else if (iDelim2 == orderDay) {
                         dateRegexp = isStrict
                            ? new RegExp("^(\\d{4})[" + delim1 + "](\\d{2})(\\d{2})$")
                            : new RegExp("^(\\d{4})[" + delim1 + "](\\d{1,2})(\\d{1,2})$");
                     } else {
                         dateRegexp = isStrict
                            ? new RegExp("^(\\d{4})[" + delim1 + "](\\d{2})[" + delim2 + "](\\d{2})$")
                            : new RegExp("^(\\d{4})[" + delim1 + "](\\d{1,2})[" + delim2 + "](\\d{1,2})$");
                     }
                     var matched = dateRegexp.exec(value);
                     if(matched != null) {
                         if (!jcv_isValidDate(matched[3], matched[2], matched[1])) {
                             if (i == 0) {
                                 focusField = field;
                             }
                             fields[i++] = oDate[x][1];
                             bValid =  false;
                         }
                     } else {
                          if (i == 0) {
                              focusField = field;
                          }
                          fields[i++] = oDate[x][1];
                          bValid =  false;
                     }
                 } else {
                     if (i == 0) {
                         focusField = field;
                     }
                     fields[i++] = oDate[x][1];
                     bValid =  false;
                 }
          }
       }
       if (fields.length > 0) {
          jcv_handleErrors(fields, focusField);
       }
       return bValid;
    }
    
    function jcv_isValidDate(day, month, year) {
	    if (month < 1 || month > 12) {
            return false;
        }
        if (day < 1 || day > 31) {
            return false;
        }
        if ((month == 4 || month == 6 || month == 9 || month == 11) &&
            (day == 31)) {
            return false;
        }
        if (month == 2) {
            var leap = (year % 4 == 0 &&
               (year % 100 != 0 || year % 400 == 0));
            if (day>29 || (day == 29 && !leap)) {
                return false;
            }
        }
        return true;
    }

    /*$RCSfile: commons-validator.js,v $ $Rev: 376673 $ $Date: 2006/07/03 16:22:33 $ */
    /**
    *  Check to see if fields must contain a value.
    * Fields are not checked if they are disabled.
    * <p>
    * @param form The form validation is taking place on.
    */

    function validateRequired(form) {
        var isValid = true;
        var focusField = null;
        var i = 0;
        var fields = new Array();

        var oRequired = eval('new ' + jcv_retrieveFormName(form) +  '_required()');

        for (var x in oRequired) {
            if (!jcv_verifyArrayElement(x, oRequired[x])) {
                continue;
            }
            var field = form[oRequired[x][0]];

            if (!jcv_isFieldPresent(field)) {
                fields[i++] = oRequired[x][1];
                isValid=false;
            } else if ((field.type == 'hidden' ||
                field.type == 'text' ||
                field.type == 'textarea' ||
                field.type == 'file' ||
                field.type == 'radio' ||
                field.type == 'checkbox' ||
                field.type == 'select-one' ||
                field.type == 'password')) {

                var value = '';
                // get field's value
                if (field.type == "select-one") {
                    var si = field.selectedIndex;
                    if (si >= 0) {
                        value = field.options[si].value;
                    }
                } else if (field.type == 'radio' || field.type == 'checkbox') {
                    if (field.checked) {
                        value = field.value;
                    }
                } else {
                    value = field.value;
                }

                if (trim(value).length == 0) {

                    if ((i == 0) && (field.type != 'hidden')) {
                        focusField = field;
                    }
                    fields[i++] = oRequired[x][1];
                    isValid = false;
                }
            } else if (field.type == "select-multiple") { 
                var numOptions = field.options.length;
                lastSelected=-1;
                for(loop=numOptions-1;loop>=0;loop--) {
                    if(field.options[loop].selected) {
                        lastSelected = loop;
                        value = field.options[loop].value;
                        break;
                    }
                }
                if(lastSelected < 0 || trim(value).length == 0) {
                    if(i == 0) {
                        focusField = field;
                    }
                    fields[i++] = oRequired[x][1];
                    isValid=false;
                }
            } else if ((field.length > 0) && (field[0].type == 'radio' || field[0].type == 'checkbox')) {
                isChecked=-1;
                for (loop=0;loop < field.length;loop++) {
                    if (field[loop].checked) {
                        isChecked=loop;
                        break; // only one needs to be checked
                    }
                }
                if (isChecked < 0) {
                    if (i == 0) {
                        focusField = field[0];
                    }
                    fields[i++] = oRequired[x][1];
                    isValid=false;
                }
            }   
        }
        if (fields.length > 0) {
           jcv_handleErrors(fields, focusField);
        }
        return isValid;
    }
    
    // Trim whitespace from left and right sides of s.
    function trim(s) {
        return s.replace( /^\s*/, "" ).replace( /\s*$/, "" );
    }

   /*$RCSfile: commons-validator.js,v $ $Rev: 376673 $ $Date: 2006/07/03 16:22:33 $ */
    /**
    * Check to see if fields are in a valid float range.
    * Fields are not checked if they are disabled.
    * <p>
    * @param form The form validation is taking place on.
    */
    function validateFloatRange(form) {
        var isValid = true;
        var focusField = null;
        var i = 0;
        var fields = new Array();
        
        var oRange = eval('new ' + jcv_retrieveFormName(form) +  '_floatRange()');
        for (var x in oRange) {
            if (!jcv_verifyArrayElement(x, oRange[x])) {
                continue;
            }
            var field = form[oRange[x][0]];
            if (!jcv_isFieldPresent(field)) {
              continue;
            }
            
            if ((field.type == 'hidden' ||
                field.type == 'text' || field.type == 'textarea') &&
                (field.value.length > 0)) {
        
                var fMin = parseFloat(oRange[x][2]("min"));
                var fMax = parseFloat(oRange[x][2]("max"));
                var fValue = parseFloat(field.value);
                if (!(fValue >= fMin && fValue <= fMax)) {
                    if (i == 0) {
                        focusField = field;
                    }
                    fields[i++] = oRange[x][1];
                    isValid = false;
                }
            }
        }
        if (fields.length > 0) {
            jcv_handleErrors(fields, focusField);
        }
        return isValid;
    }

    /*$RCSfile: commons-validator.js,v $ $Rev: 376673 $ $Date: 2006/07/03 16:22:33 $ */
    /**
    * A field is considered valid if greater than the specified minimum.
    * Fields are not checked if they are disabled.
    * <p>
    * <strong>Caution:</strong> Using <code>validateMinLength</code> on a password field in a 
    *  login page gives unnecessary information away to hackers. While it only slightly
    *  weakens security, we suggest using it only when modifying a password.</p>
    * @param form The form validation is taking place on.
    */
    function validateMinLength(form) {
        var isValid = true;
        var focusField = null;
        var i = 0;
        var fields = new Array();

        var oMinLength = eval('new ' + jcv_retrieveFormName(form) +  '_minlength()');

        for (var x in oMinLength) {
            if (!jcv_verifyArrayElement(x, oMinLength[x])) {
                continue;
            }
            var field = form[oMinLength[x][0]];
            if (!jcv_isFieldPresent(field)) {
              continue;
            }

            if ((field.type == 'hidden' ||
                field.type == 'text' ||
                field.type == 'password' ||
                field.type == 'textarea')) {

                /* Adjust length for carriage returns - see Bug 37962 */
                var lineEndLength = oMinLength[x][2]("lineEndLength");
                var adjustAmount = 0;
                if (lineEndLength) {
                    var rCount = 0;
                    var nCount = 0;
                    var crPos = 0;
                    while (crPos < field.value.length) {
                        var currChar = field.value.charAt(crPos);
                        if (currChar == '\r') {
                            rCount++;
                        }
                        if (currChar == '\n') {
                            nCount++;
                        }
                        crPos++;
                    }
                    var endLength = parseInt(lineEndLength);
                    adjustAmount = (nCount * endLength) - (rCount + nCount);
                }

                var iMin = parseInt(oMinLength[x][2]("minlength"));
                if ((trim(field.value).length > 0) && ((field.value.length + adjustAmount) < iMin)) {
                    if (i == 0) {
                        focusField = field;
                    }
                    fields[i++] = oMinLength[x][1];
                    isValid = false;
                }
            }
        }
        if (fields.length > 0) {
           jcv_handleErrors(fields, focusField);
        }
        return isValid;
    }

    /*$RCSfile: commons-validator.js,v $ $Rev: 376673 $ $Date: 2006/07/03 16:22:33 $ */
    /**
    * A field is considered valid if less than the specified maximum.
    * Fields are not checked if they are disabled.
    * <p>
    * <strong>Caution:</strong> Using <code>validateMaxLength</code> on a password field in a 
    *  login page gives unnecessary information away to hackers. While it only slightly
    *  weakens security, we suggest using it only when modifying a password.</p>
    * @param form The form validation is taking place on.
    */
    function validateMaxLength(form) {
        var isValid = true;
        var focusField = null;
        var i = 0;
        var fields = new Array();
 
        var oMaxLength = eval('new ' + jcv_retrieveFormName(form) +  '_maxlength()');        
        for (var x in oMaxLength) {
            if (!jcv_verifyArrayElement(x, oMaxLength[x])) {
                continue;
            }
            var field = form[oMaxLength[x][0]];
            if (!jcv_isFieldPresent(field)) {
              continue;
            }

            if ((field.type == 'hidden' ||
                field.type == 'text' ||
                field.type == 'password' ||
                field.type == 'textarea')) {

                /* Adjust length for carriage returns - see Bug 37962 */
                var lineEndLength = oMaxLength[x][2]("lineEndLength");
                var adjustAmount = 0;
                if (lineEndLength) {
                    var rCount = 0;
                    var nCount = 0;
                    var crPos = 0;
                    while (crPos < field.value.length) {
                        var currChar = field.value.charAt(crPos);
                        if (currChar == '\r') {
                            rCount++;
                        }
                        if (currChar == '\n') {
                            nCount++;
                        }
                        crPos++;
                    }
                    var endLength = parseInt(lineEndLength);
                    adjustAmount = (nCount * endLength) - (rCount + nCount);
                }

                var iMax = parseInt(oMaxLength[x][2]("maxlength"));
                if ((field.value.length + adjustAmount)  > iMax) {
                    if (i == 0) {
                        focusField = field;
                    }
                    fields[i++] = oMaxLength[x][1];
                    isValid = false;
                }
            }
        }
        if (fields.length > 0) {
           jcv_handleErrors(fields, focusField);
        }
        return isValid;
    }

    /*$RCSfile: commons-validator.js,v $ $Rev: 376673 $ $Date: 2006/07/03 16:22:33 $ */
    /**
    * Check to see if fields are a valid email address.
    * Fields are not checked if they are disabled.
    * <p>
    * @param form The form validation is taking place on.
    */
    function validateEmail(form) {
        var bValid = true;
        var focusField = null;
        var i = 0;
        var fields = new Array();

        var oEmail = eval('new ' + jcv_retrieveFormName(form) +  '_email()');

        for (var x in oEmail) {
            if (!jcv_verifyArrayElement(x, oEmail[x])) {
                continue;
            }
            var field = form[oEmail[x][0]];
            if (!jcv_isFieldPresent(field)) {
              continue;
            }
            if ((field.type == 'hidden' || 
                 field.type == 'text' ||
                 field.type == 'textarea') &&
                (field.value.length > 0)) {
                if (!jcv_checkEmail(field.value)) {
                    if (i == 0) {
                        focusField = field;
                    }
                    fields[i++] = oEmail[x][1];
                    bValid = false;
                }
            }
        }
        if (fields.length > 0) {
            jcv_handleErrors(fields, focusField);
        }
        return bValid;
    }

    /**
     * Reference: Sandeep V. Tamhankar (stamhankar@hotmail.com),
     * http://javascript.internet.com
     */
    function jcv_checkEmail(emailStr) {
        if (emailStr.length == 0) {
            return true;
        }
        // TLD checking turned off by default
        var checkTLD=0;
        var knownDomsPat=/^(com|net|org|edu|int|mil|gov|arpa|biz|aero|name|coop|info|pro|museum)$/;
        var emailPat=/^(.+)@(.+)$/;
        var specialChars="\\(\\)><@,;:\\\\\\\"\\.\\[\\]";
        var validChars="\[^\\s" + specialChars + "\]";
        var quotedUser="(\"[^\"]*\")";
        var ipDomainPat=/^\[(\d{1,3})\.(\d{1,3})\.(\d{1,3})\.(\d{1,3})\]$/;
        var atom=validChars + '+';
        var word="(" + atom + "|" + quotedUser + ")";
        var userPat=new RegExp("^" + word + "(\\." + word + ")*$");
        var domainPat=new RegExp("^" + atom + "(\\." + atom +")*$");
        var matchArray=emailStr.match(emailPat);
        if (matchArray==null) {
            return false;
        }
        var user=matchArray[1];
        var domain=matchArray[2];
        for (i=0; i<user.length; i++) {
            if (user.charCodeAt(i)>127) {
                return false;
            }
        }
        for (i=0; i<domain.length; i++) {
            if (domain.charCodeAt(i)>127) {
                return false;
            }
        }
        if (user.match(userPat)==null) {
            return false;
        }
        var IPArray=domain.match(ipDomainPat);
        if (IPArray!=null) {
            for (var i=1;i<=4;i++) {
                if (IPArray[i]>255) {
                    return false;
                }
            }
            return true;
        }
        var atomPat=new RegExp("^" + atom + "$");
        var domArr=domain.split(".");
        var len=domArr.length;
        for (i=0;i<len;i++) {
            if (domArr[i].search(atomPat)==-1) {
                return false;
            }
        }
        if (checkTLD && domArr[domArr.length-1].length!=2 && 
            domArr[domArr.length-1].search(knownDomsPat)==-1) {
            return false;
        }
        if (len<2) {
            return false;
        }
        return true;
    }