// 
var bValidateOverride = false;
var bValidateItemOverride = false;


function CheckPage(validationGroup, useStatusArea) {
    if (typeof (Validate) != 'undefined') {
        return Validate.Check(validationGroup, useStatusArea);
    }
    else {
        return true;
    }
};

var Validator = Class.create();
Validator.prototype = {
    items: [],

    initialize: function()
    { },

    Add: function(control, conditions, messages, runOnCheckAll, runOnBlur, runOnClick, addToBlur, addToMouseOut) {
        if (control != null) {
            this.items.push(new ValidatorItem(control, conditions, messages, runOnCheckAll, runOnBlur, runOnClick, false));

            if (addToMouseOut == true) {
                control.onmouseout = function() { Validate.CheckThis(this, event) };
            }
            if (addToBlur == true) {
                control.onblur = function() { Validate.CheckThis(this, event) };
            }
        }

    },

    AddById: function(controlId, conditions, messages, runOnCheckAll, runOnBlur, runOnClick, addToBlur, addToMouseOut) {
        if (controlId != null) {
            this.items.push(new ValidatorItem(controlId, conditions, messages, runOnCheckAll, runOnBlur, runOnClick, true));
        }

    },


    Check: function(validationGroup, useStatusArea) {
        if ((typeof (validationGroup) == 'undefined') || (validationGroup == null)) {
            validationGroup = '';
        }
        return this.CheckThis(null, null, validationGroup, useStatusArea);
    },

    CheckThis: function(checkcontrol, e, validationGroup, useStatusArea) {
        var focusId;
        var eventType = '';
        var itemCount;

        if ((e) && (e != null)) {
            eventType = e.type;
        }
        //Clear the alternativeFocusId
        alternativeFocusId = null;
        if (bValidateOverride) {
            return true;
        }
        else if ((bValidateItemOverride) && (checkcontrol != null)) {
            return false;
        }
        else if ((messageArea) && (messageArea.messageRaised)) {
            return false;
        }
        if ((typeof (useStatusArea) == 'undefined') || (useStatusArea == null)) {
            useStatusArea = false;
        }

        itemCount = this.items.length;

        for (var iLoop = 0; iLoop < itemCount; iLoop++) {
            if (this.items[iLoop].control != null) {
                if ((checkcontrol == null) || (this.items[iLoop].control.id == checkcontrol.id)) {
                    for (var iCondition = 0; iCondition < this.items[iLoop].rules.length; iCondition++) {
                        //Very important. 'that' is the name used to identify the object being tested
                        //'that' must be passed in as part of the test so we can use isNAN(that.value) and such like.
                        var that = this.items[iLoop].control;
                        if (this.items[iLoop].isId) {
                            that = document.getElementById(that);
                        }

                        if ((that != null) && (this.items[iLoop].rules[iCondition].condition.validationGroup == validationGroup) && (this.isDisabled(that) == false) && (this.isReadOnly(that) == false)) {
                            //Check to see if this is an onblur event.
                            //e.g. do not eval an on blur event on checking all controls.
                            if ((checkcontrol != null) || (this.items[iLoop].rules[iCondition].runOnCheckAll == 'true')) {
                                if (!eval(this.items[iLoop].rules[iCondition].condition.rule)) {
                                    //Only display a message if one has been defined.
                                    if (typeof (this.items[iLoop].rules[iCondition].message) != 'undefined') {
                                        if (alternativeFocusId != null) {
                                            focusId = alternativeFocusId;
                                        }
                                        else {
                                            focusId = this.items[iLoop].control.id;
                                        }
                                        if (useStatusArea == true) {
                                            StatusArea.clear();
                                            StatusArea.add('Fatal', this.items[iLoop].rules[iCondition].message);
                                        }
                                        else {
                                            var msgShown = raiseMessage('validation', this.items[iLoop].rules[iCondition].message, focusId);
                                        }
                                        return false;
                                        break;
                                    }
                                }
                            }
                        }
                    }
                }
            }
        }
        return true;
    },

    isDisabled: function(that) {
        //Returns true if the control is disabled.
        //else returns false (e.g. if control is not disabled or control does not have a disabled property).
        if (typeof (that.disabled) == 'boolean') {
            return that.disabled;
        }
        else {
            return false;
        }
    },

    isReadOnly: function(that) {
        //Returns true if the control is readOnly.
        //else returns false (e.g. if control is not readOnly or control does not have a readOnly property).
        if (typeof (that.readOnly) == 'boolean') {
            return that.readOnly;
        }
        else {
            return false;
        }
    }
};

var ValidatorItem = Class.create();
ValidatorItem.prototype = {
    control: null,
    rules: null,
    isId: false,
    initialize: function(control, conditions, messages, runOnCheckAll, runOnBlur, runOnClick, isId) {
        this.control = control;
        this.rules = [];
        this.isId = isId;

        for (var ruleIndex = 0; ruleIndex < conditions.length; ruleIndex++) {
            this.rules.push(new ValidatorRule(conditions[ruleIndex], messages[ruleIndex], runOnCheckAll[ruleIndex], runOnBlur[ruleIndex], runOnClick[ruleIndex]));
        }
    }
};
var ValidatorRule = Class.create();
ValidatorRule.prototype = {
    condition: null,
    message: null,
    runOnCheckAll: false,
    runOnBlur: false,
    runOnClick: false,

    initialize: function(condition, message, runOnCheckAll, runOnBlur, runOnClick) {
        this.condition = condition;
        this.message = message;
        this.runOnCheckAll = runOnCheckAll;
        this.runOnBlur = runOnBlur;
        this.runOnClick = runOnClick;
    }
};


/********************************************************************************
Functions
*********************************************************************************/

function isMatch(strValue, strExpression) {
    var rgMatch = new RegExp(strExpression);
    return strValue.match(rgMatch)
}

function upperCase(that) {
    that.value = that.value.toUpperCase();
    return true;
}

function lowerCase(that) {
    that.value = that.value.toLowerCase();
    return true;
}

function normalCaseFirst(that) {
    that.value = toNormalCase(that.value, ' ', false);
    return true;
}

function normalCaseAll(that) {
    that.value = toNormalCase(that.value, ' ', true);
    return true;
}

function compareDate(strdate_1, strdate_2, strmode) {
    //debugger;
    var ret_val = false;
    if (
        typeof (strdate_1) != 'undefined' &&
        typeof (strdate_2) != 'undefined' &&
        strdate_1 != '' &&
        strdate_2 != ''
    ) {
        //This should really check for valid dates either before or after we have created the date objects.
        var new_date_1 = toDate(strdate_1);
        var new_date_2 = toDate(strdate_2);
        switch (strmode) {
            case "greater":
                ret_val = new_date_1 > new_date_2;
                break;
            case "less":
                ret_val = new_date_1 < new_date_2;
                break;
            case "equal":
                ret_val = new_date_1 == new_date_2;
                break;
            case "equgreater":
                ret_val = new_date_1 >= new_date_2;
                break;
            case "equless":
                ret_val = new_date_1 <= new_date_2;
                break;
            default:
                //No mode so return false.
                ret_val = false;
                break;
        }
    }
    else {
        return true;
    }
    return ret_val;
}

function toNormalCase(this_string, word_seperator, all_words) {
    /*
    *toNormalCase sets the first letter of one or more words to capital
    *
    * this_string    - string ('')     - The string to be capitalised
    * word_seperator - string (' ')    - Character between words 
    * all_words      - boolean (false) - False capitalises first word only, true capitalises all words
    */
    //Init vars
    var first_letter = new String();
    var other_letters = new String();
    var temp_string = new String();
    //check parameters
    if (word_seperator == null) {
        word_seperator = ' ';
    }
    if (all_words != true) {
        all_words = false
    }
    this_string = this_string.toLowerCase();
    //All words or just the first?
    if (all_words) {
        //Capitalise all words
        var temp_words = new Array();
        temp_words = this_string.split(word_seperator);
        var word_num = 0;
        //Iterate through words
        for (word_num = 0; word_num < temp_words.length; word_num++) {
            first_letter = temp_words[word_num].charAt(0);
            other_letters = temp_words[word_num].substring(1, temp_words[word_num].length);
            first_letter = first_letter.toUpperCase();
            if (temp_string == '') {
                temp_string += first_letter + other_letters
            }
            else {
                temp_string += word_seperator + first_letter + other_letters
            }
        }
    }
    else {
        //Capitalise first word only
        first_letter = this_string.charAt(0);
        other_letters = this_string.substring(1, this_string.length);
        first_letter = first_letter.toUpperCase();
        temp_string = first_letter + other_letters
    }
    return (temp_string);
}


function isValidDecimalPercent(that, min, max) {
    /*
    Returns a boolean based on whether the value passed in is a number and is between the min and max values.
    true - if all criteria were met
    false - if any of the criteria were not met. 
    */
    var return_value = true;
    if (isNaN(that)) {
        return_value = false;
    }
    else {
        if (that > max || that < min) {
            return_value = false;
        }
        if (that.indexOf('.') > -1) {
            var this_value = that.toString();
            var value_array = new Array();
            value_array = this_value.split('.');
            //debug_print(value_array.length);
            if (value_array.length > 0) {
                var decimal_part = value_array[1].toString();
                //debug_print(decimal_part);
                if (decimal_part.length > 2) {
                    return_value = false;
                }
            }
        }
    }
    return return_value;
};


function isNumeric(expression) {
    var validChars = "0123456789.";
    var validSignChars = "-+";
    var charValue;
    var decimalPointCount = 0;
    if ((expression != null) && (expression != 'undefined')) {
        for (var charIndex = 0; charIndex < expression.length; charIndex++) {
            charValue = expression.charAt(charIndex);
            if (validChars.indexOf(charValue) == -1) {
                //This may have a sign operator
                if (!((charIndex == 0) && (validSignChars.indexOf(charValue) != -1))) {
                    return false;
                }
            }
            if (charValue == '.') {
                decimalPointCount++;
            }
        }
        if (decimalPointCount < 2) {
            return true;
        }
        return true;
    }
    else {
        return false;
    }
};

//Nick
function isGenericPhoneNo(strPhone) {
    // Check for correct phone number
    rePhoneNumber = new RegExp(/^\+?\d[-\s\d]*\d$/);

    if (strPhone == '') {
        return true;
    }

    if (!rePhoneNumber.test(strPhone)) {
        return false;
    }

    return true;

};

//orv
function isEmail(strEmail) {
    // Check for valid email address
    var reExp;

    if (strEmail == '') {
        return true;
    }

    reExp = new RegExp(/^([a-zA-Z0-9_\.\-])+\@(([a-zA-Z0-9\-])+\.)+([a-zA-Z0-9]{2,4})+$/);
    return reExp.test(strEmail);
};

function isDate(strDate) {
    //return !isNaN(new Date(p_Expression));		// <<--- this needs checking
    /* 
    checked, this does not work. or at least not in my tests
    */
    /*try this
    known issues:
    haven't tested all date formats supported
    */
    if (bValidateOverride) {
        //debug_print('Validation override in place. Skipping validation');
        return true;
    }
    if ((strDate != null) && (typeof(strDate.getFullYear) != 'undefined'))
    {
        //already a date object.
        return true;
    }
    /*
    This could be extended to be from a passed in format parameter instead of 'hardcoded' to dd/mm/yyy.
    */
    // order of d/m/y - 0/1/2
    var iDay = 0;
    var iMonth = 1;
    var iYear = 2;
    // splitChar - Default to nothing, this would make it fail if it is left, however if no split char is matched later the function returns false anyway..
    var splitChar = '';
    // declaration of our regexp for use later.
    var validformat;
    /*These regexp's force a format of 
    [0][1->9] or 1[0->9] or 2[0->9] 3[0-1] for the day
    [0][1-9] or 1[0->2] for the month
    1[000->999] or 2[000->999] for the year
    This has been changed now to make the leading 0's optional in all relevant places.
    Needs to be heavily tested with many dates and formats.
    Supported should be
    01/01/2006
    1/1/2006
    01.01.2006
    1.1.2006
    01-01-2006
    1-1-2006
    01\01\2006
    1\1\2006
    */
    //find SplitChar and set format regexp.
    if (strDate.indexOf('/') >= 0) {
        validformat = new RegExp(/(0?[1-9]|[12][0-9]|3[01])(\/)(0?[1-9]|1[0-2])(\/)[129][0-9]{3}/);
        splitChar = '/';
    }
    else if (strDate.indexOf('.') >= 0) {
        validformat = new RegExp(/(0?[1-9]|[12][0-9]|3[01])(\.)(0?[1-9]|1[0-2])(\.)[129][0-9]{3}/);
        splitChar = '.';
    }
    else if (strDate.indexOf('-') >= 0) {
        validformat = new RegExp(/(0?[1-9]|[12][0-9]|3[01])(\-)(0?[1-9]|1[0-2])(\-)[129][0-9]{3}/);
        splitChar = '-';
    }
    else if (strDate.indexOf('\\') >= 0) {
        validformat = new RegExp(/(0?[1-9]|[12][0-9]|3[01])(\\)(0?[1-9]|1[0-2])(\\)[129][0-9]{3}/);
        splitChar = '\\';
    }
    else {
        //Failover condition. None of the above matched so return failure.
        return false;
    }
    //debugger;
    if (!strDate.match(validformat)) {
        //Regexp test, if it fails then return failure.
        return false;
    }
    else {
        //Else process the date further to determine validity as real date.
        //This should be checking for things like feb 29th feb 30th feb 31st.
        var dayfield = strDate.split(splitChar)[iDay]
        var monthfield = strDate.split(splitChar)[iMonth]
        var yearfield = strDate.split(splitChar)[iYear]
        var dayobj = new Date(yearfield, monthfield - 1, dayfield)
        if ((dayobj.getMonth() + 1 != monthfield) || (dayobj.getDate() != dayfield) || (dayobj.getFullYear() != yearfield)) {
            return false;
        }
        else {
            return true;
        }
    }
    return true;
}

function toDate(expression) {
    /*
    returns a valid date object.
    expected date format is that of the calendar control.
    e.g. d/m/yyyy
    NOTE: if the date is not valid then this function will return 
    the current date.
    If you need to check date is valid please use isDateValid()
    before calling.
    */

    if ((typeof (expression) != 'undefined') && (typeof (expression.setYear) != 'undefined')) {
        //expression is already a date.
        return expression;
    }
    else if ((typeof (expression) == 'string') && (expression.indexOf('new Date(') > 0)) {
        return eval(expression);
    }
    else if (typeof (expression) == 'number') {
        return new Date(expression);
    }


    var sStartDate = expression.split('/');
    var day = 0;
    var month = 0;
    var year = 0;
    if (sStartDate.length > 0) {
        day = parseInt(sStartDate[0]);
    }
    if (sStartDate.length > 1) {
        month = parseInt(sStartDate[1]);
    }
    if (sStartDate.length > 2) {
        year = parseInt(sStartDate[2]);
    }
    if (day == 0) {
        day = new Date().getDate();
    }
    if (month == 0) {
        month = new Date().getMonth();
    }
    if (year == 0) {
        year = new Date().getYear();
    }
    return new Date(year, month, day);
}

// Numeric
// Ahsan 24/10/2006
function numericComparisons(expression, compareValue, whichComparison) {
    //debugger;
    var value = null;
    var blnComparison = false;

    if (expression == '') {
        return true;
    }

    if ((expression != null) && (expression != 'undefined')) {
        switch (whichComparison.toLowerCase()) {
            case 'numericgreaterthanorequalto':
                value = getNumeric(expression, '-.+', true);
                if (value >= compareValue) {
                    blnComparison = true;
                }
                break;

            case 'numericlessthanorequalto':
                value = getNumeric(expression, '-.+', true);
                if (value <= compareValue) {
                    blnComparison = true;
                }
                break;

            case 'numericlessthan':
                value = getNumeric(expression, '-.+', true);
                if (value < compareValue) {
                    blnComparison = true;
                }
                break;

            case 'numericgreaterthan':
                value = getNumeric(expression, '-.+', true);
                if (value > compareValue) {
                    blnComparison = true;
                }
                break;

            case 'numericnotlongerthan':
                value = getNumeric(expression, '', true);
                if (value.length <= compareValue) {
                    blnComparison = true;
                }
                break;

            case 'numericnotshorterthan':
                value = getNumeric(expression, '', true);
                if (value.length >= compareValue) {
                    blnComparison = true;
                }
                break;

            case 'numericlengthequalto':
                value = getNumeric(expression, '', true);
                if (value.length == compareValue) {
                    blnComparison = true;
                }
                break;

            case 'numericnotblank':
                value = getNumeric(expression, '', true);
                if (value.length > 0) {
                    blnComparison = true;
                }
                break;

            case 'numericbutnotdecimal':

                value = getNumeric(expression, '+.-', true);
                var intValue = parseInt(value);

                if (value == intValue) {
                    blnComparison = true;
                }
                break;

            default:
                blnComparison = false;
        }
    }
    else {
        blnComparison = false;
    }

    return blnComparison;
};

function getNumericValue(that, allowTheseExtras, blnTreatAsANumber) {
    that.value = getNumeric(that.value, allowTheseExtras, blnTreatAsANumber);
    return true;
};

/*
Function: 
getNumeric
Parameters: 
expression: input string.
allowTheseExtras: chars to be allowed other than numbers.
blnTreatAsANumber: will treat expression as a number. when
true, allowTheseExtras should only include +, period or a - sign.
Returns: 
Numeric value of expression (input string)
Example:
getNumeric('£  -1.01d', '.', true) will return -1.01
getNumeric('£  -1.01.', '.', true) will return false
Author: 
Ahsan 23/10/2006
*/
function getNumeric(expression, allowTheseExtras, blnTreatAsANumber) {
    //debugger;
    var blnDecimal = false;
    var blnPositiveNegative = false;
    var strExpression = '';
    var chrAtIndex;
    var numList = '0123456789';
    var iCharIndex = 0;

    if ((expression != null) && (expression != 'undefined')) {
        for (iCharIndex = 0; iCharIndex < expression.length; iCharIndex++) {
            chrAtIndex = expression.charAt(iCharIndex);

            if ((!(numList.indexOf(chrAtIndex) == -1)) || (!(allowTheseExtras.indexOf(chrAtIndex) == -1))) {
                if (blnTreatAsANumber) {
                    if ((chrAtIndex == '.') && (blnDecimal)) {
                        // allow only one decimal occurance.
                        return false;
                    }
                    else if (chrAtIndex == '.') {
                        // first occurrence of decimal
                        blnDecimal = true;
                    }
                    else if (((blnPositiveNegative) && (chrAtIndex == '-')) || ((chrAtIndex == '+') && (blnPositiveNegative))) {
                        // allow only one occurrence of + or - sign
                        return false;
                    }
                    else if ((chrAtIndex == '-') || (chrAtIndex == '+')) {
                        // first occurance of - or + sign
                        blnPositiveNegative = true;
                    }
                }

                // concat to return string
                strExpression = strExpression.concat(chrAtIndex);

            }
        }

        return strExpression;
    }
    else {
        return false;
    }
};