function submitForm(mode, form) {
	document.forms[form].action.value=mode;
	return true;
}

function submitFormFromLink(mode, form) {
	document.forms[form].action.value=mode;
	if (document.forms[form].onsubmit()) {
	 	document.forms[form].submit();
	}
	return false;

}

function submitFormPopup(url) {
	newwindow=window.open(url,'name','scrollbars=yes, resizable=yes, menubar=yes, status=yes');
	if (window.focus) {newwindow.focus()}
	//return false;
}

function onLoadEntry(formName, focusField) {
	//the focusField is focused, once the search operation for that field has been finished
    var fieldNames = new String(focusField).split('|');
    if (fieldNames[0] != "" ) {
	   	var field = document.forms[formName].elements[fieldNames[0]];
	   	if (field.type == 'text' || field.type == 'textarea' || field.type == 'file' 
	   			|| field.type == 'select-one' || field.type == 'radio' || field.type == 'password') {
			var cancelBtn = document.forms[formName].elements["cancelBtn"];
            //locate to the bottom of the form, where is the sumit button
            cancelBtn.focus(); 
            //locate to the field on the top area of the browser
            field.focus();
		}
    }
}

function handleEnter (field, event) {
	var keyCode = event.keyCode ? event.keyCode : event.which ? event.which : event.charCode;
	if (keyCode == 13) {
		var i;
		for (i = 0; i < field.form.elements.length; i++) {
			if (field == field.form.elements[i]) break;
			i = (i + 1) % field.form.elements.length;
			field.form.elements[i].focus();
			return false;
		}
	} else return true;
}

function changeCheckboxValueByState(fieldName) {
	fieldName.value=fieldName.checked;
}

function checkMaxLength(obj, max, message) {
	if (obj.value == null) return true;
	if (obj.value.length > max) {
		if (message != null && message != '') alert(message);
		obj.value = obj.value.substring(0, max);
		return false;
	}
	return true;
}

// Trim whitespace from left and right sides of s.
function trim(s) {
	return s.replace( /^\s*/, "" ).replace( /\s*$/, "" );
}

function validateRequiredExecute(form) {
	oRequired = new required();
    for (x in oRequired) {
    	var field = form[oRequired[x][0]];
    	if (field == undefined) continue;
    	if (field.type == 'text' || field.type == 'textarea' || field.type == 'file' 
    			|| field.type == 'select-one' || field.type == 'radio' 
    			|| field.type == 'password' || field.type == 'hidden') {

			var value = '';
            //trim the spaces
			if (field.type == 'text' || field.type == 'textarea' || field.type == 'file' 
					|| field.type == 'password' || field.type == 'hidden') {
				field.value = form[oRequired[x][0]].value = trim(field.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 (trim(value).length == 0) {
            	field.focus();
                if (field.type != 'select-one' && field.type != 'hidden') field.select();
                alert(oRequired[x][1]);
                return false;
			}
		}
    }
	return true;
}
function validateRequiredObjExecute(form) {
    oRequired = new requiredObj();
    for (x in oRequired) {
    	if (getObjById("contentSubview:registrationForm").membershipType[1].checked) continue;
    	var field = form[oRequired[x][0]];
    	var fieldCompareInput = oRequired[x][2]("datePatternStrict");
    	if (getObjById(fieldCompareInput) == undefined) {
            return validateSiteUsed(form);
    	} else {
			if (isSiteUsedHasSome(form)) return validateSiteUsed(form);
		}
	}
    return true;
}
                    
function validateRatingExecute(form) {
    oRequired = new rating();
	for (x in oRequired) {
        var field = form[oRequired[x][0]];

		if (field.type == 'hidden') {

            var value = '';
            //trim the spaces
			if (field.type == 'hidden') {
        		field.value = form[oRequired[x][0]].value = trim(field.value);
			}
			value = trim(field.value);
            if (value == '' || value == 0) {
            	//field.focus();
            	//if (field.type != 'select-one' && field.type != 'hidden') field.select();
	            alert(oRequired[x][1]);
            	return false;
			}
        }
    }
    return true;
}
function validateMaxLengthExecute(form) {
    var isValid = true;
    var focusField = null;
    var i = 0;
    var fields = new Array();
    oMaxLength = new maxlength();
    for (x in oMaxLength) {
        var field = form[oMaxLength[x][0]];
        
        if (field.type == 'text' ||
            field.type == 'textarea') {
            
            var iMax = parseInt(oMaxLength[x][2]("maxlength"));
            if (field.value.length > iMax) {
                if (i == 0) {
                    focusField = field;
                }
                fields[i++] = oMaxLength[x][1];
                isValid = false;
                break;
            }
        }
    }
    if (fields.length > 0) {
       focusField.focus();
       alert(fields.join('\n'));
    }
    return isValid;
}
        
function validateIdenticalExecute(form) {
    var isValid = true;
	var focusField = null;
    var i = 0;
    var fields = new Array();
    oMasked = new identical();
	for (x in oMasked) {
        var field = form[oMasked[x][0]];
		var fieldCompareInput = oMasked[x][2]("datePatternStrict");
		var fieldCompare = form[fieldCompareInput];
		//trim the spaces
		if (field.type == 'text' || field.type == 'textarea' || field.type == 'file' 
				|| field.type == 'password') {
			field.value = form[oMasked[x][0]].value = trim(field.value);
		}

        if ((field.type == 'text' || field.type == 'textarea' || field.type == 'file' 
        		|| field.type == 'password') && (field.value.length > 0)) {
            if (field.value != fieldCompare.value) {
				focusField = fieldCompare;
                fields[i++] = oMasked[x][1];
                isValid = false;
                break;
            }
        }
    }

    if (fields.length > 0) {
       focusField.focus();
       focusField.select();
       alert(fields.join('\n'));
    }
    return isValid;
}


function validateCheckboxOtherExecute(form) {
    var isValid = true;
    var focusField = null;
    var i = 0;
    var fields = new Array();
    oMasked = new checkboxOther();
    for (x in oMasked) {
        var field = form[oMasked[x][0]];
        var fieldCompareInput = oMasked[x][2]("datePatternStrict");
        var fieldCompare = form[fieldCompareInput];

        // get field's value
		if (fieldCompare.checked == true && trim(field.value).length == 0) {
        	focusField = field;
            fields[i++] = oMasked[x][1];
            isValid = false;
            break;								
		}
    }
    if (fields.length > 0) {
       focusField.focus();
       focusField.select();
       alert(fields.join('\n'));
    }
    return isValid;
}

function validateMaskExecute(form) {
    var isValid = true;
    var focusField = null;
    var i = 0;
    var fields = new Array();
    oMasked = new mask();
    for (x in oMasked) {
        var field = form[oMasked[x][0]];

            //trim the spaces
	    if (field.type == 'text' || field.type == 'textarea' || field.type == 'file' 
	    		|| field.type == 'password') {
			field.value = form[oMasked[x][0]].value = trim(field.value);
		}

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

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

    if (fields.length > 0) {
       focusField.focus();
       focusField.select();
       alert(fields.join('\n'));
    }
    return isValid;
}

function matchPattern(value, mask) {
   return mask.exec(value);
}
function validateMaskExtExecute(form) {
    var isValid = true;
    var focusField = null;
    var i = 0;
    var fields = new Array();
    oMaskedExt = new maskExt();
    for (x in oMaskedExt) {
        var field = form[oMaskedExt[x][0]];

            //trim the spaces
        if (field.type == 'text' ||
             field.type == 'textarea' ||
             field.type == 'file' ||
             field.type == 'password') {
				field.value = form[oMaskedExt[x][0]].value = trim(field.value);
        }

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

            if (!matchPattern(field.value, eval('/' + oMaskedExt[x][2]("maskExt") + '/'))) {
                focusField = field;
                fields[i++] = oMaskedExt[x][1];
                isValid = false;
                break;
            }
        }
    }

    if (fields.length > 0) {
       focusField.focus();
       focusField.select();
       alert(fields.join('\n'));
    }
    return isValid;
}

function validateValidBirthExecute(form) {
	oDateValidBirth = new dateValidBirth();
	for (indx in oDateValidBirth) {
		var fMonth = form [oDateValidBirth [indx][0]];
		fMonth.value = form [oDateValidBirth [indx][0]].value = trim(form [oDateValidBirth [indx][0]].value);
		if (fMonth.type == 'text') {
			// get rest of date fields (as variable-arguments)
			var fDay = form [oDateValidBirth [indx][2]("day")];
			var fYear = form [oDateValidBirth [indx][2]("year")];
			fDay.value = form [oDateValidBirth [indx][2]("day")].value = trim(form [oDateValidBirth [indx][2]("day")].value);
			fYear.value = form [oDateValidBirth [indx][2]("year")].value = trim(form [oDateValidBirth [indx][2]("year")].value);

			if (isBlank(fMonth.value) && isBlank(fDay.value) && isBlank(fYear.value)) {
				// not date
				continue;
			}
			if (isInvalidBirthDate(fDay.value, fMonth.value, fYear.value)) {
				fMonth.focus();
				var msg;
				var msgParameters = oDateValidBirth [indx][2]("msg_parameters");
				if (msgParameters != null) {
					msg = setMessageParameters(oDateValidBirth [indx][1], msgParameters, form);
				} else {
					msg = fields [fields.length] = oDateValidBirth [indx][1];
				}
				alert(msg);
				return false;
			}
		}
	}
	return true;
}

function validateCustomDateRangeExecute(form) {
	oDateRange = new customDateRange();
	for (indx in oDateRange) {
		var fMonth = form [oDateRange [indx][0]];
		fMonth.value = form [oDateRange [indx][0]].value = trim(form [oDateRange [indx][0]].value);

		if (fMonth.type == 'text') {

			// get rest of date fields (as variable-arguments)
			var fDay = form [oDateRange [indx][2]("day")];
			var fYear = form [oDateRange [indx][2]("year")];
			var fStartRange = oDateRange [indx][2]("startRange");
			var fEndRange = oDateRange [indx][2]("endRange");

			fDay.value = form [oDateRange [indx][2]("day")].value = trim(form [oDateRange [indx][2]("day")].value);
			fYear.value = form [oDateRange [indx][2]("year")].value = trim(form [oDateRange [indx][2]("year")].value);

			if (isBlank(fMonth.value) && isBlank(fDay.value) && isBlank(fYear.value)) {
				// not date
				continue;
			}
			if (isInvalidRangeDate(fDay.value, fMonth.value, fYear.value, fStartRange, fEndRange)) {
				fMonth.focus();
				var msg;
				var msgParameters = oDateRange [indx][2]("msg_parameters");
				if (msgParameters != null) {
					msg = setMessageParameters(oDateRange [indx][1], msgParameters, form);
				} else {
					msg = fields [fields.length] = oDateRange [indx][1];
				}
				alert(msg);
				return false;
			}
		}
	}
	return true;
}

function 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;
}

function isInvalidBirthDate(day, month, year) {
	var yr = parseInt(year);
	if (yr < 50) yr = 2000 + yr;
	else if (yr < 100) yr = 1900 + yr;
	else if (yr < 1000) yr = 1000 + yr;
	var date = new Date(yr, parseInt(month) - 1, day)
	var sDate = normalizeDate(date);
	return  sDate < "18401231" || "20840101" < sDate;
}

function isInvalidRangeDate(day, month, year, start, end) {
	var yr = parseInt(year);
	if (yr < 50) yr = 2000 + yr;
	else if (yr < 100) yr = 1900 + yr;
	else if (yr < 1000) yr = 1000 + yr;
	var date = new Date(yr, parseInt(month) - 1, day)
	var sDate = normalizeDate(date);
	return  sDate < start || end < sDate;
}

function setMessageParameters(message, parameters, form) {
	var fieldNames = new String(parameters).split(',');
	for (var i = 0; i < fieldNames.length; ++ i) {
		var obj = form [fieldNames[i]];
		if (obj != null) {
			var reg = "{"+i+"}";
			message = message.replace(reg, obj.value);
		}
	}
	return message;
}

function isFutureDate(day, month, year) {
	var now = new Date();
	var today = new Date(now.getFullYear(), now.getMonth(), now.getDate());
	var yr = parseInt(year);
	if (yr < 50) yr = 2000 + yr;
	else if (yr < 100) yr = 1900 + yr;
	else if (yr < 1000) yr = 1000 + yr;
	var date = new Date(yr, parseInt(month) - 1, day)
	return normalizeDate(date) > normalizeDate(today);
}

/***************************************
* Argument is javascript Date-object.  *
* Return date in format of 'yyyyMMdd'. *
****************************************/
function normalizeDate(date) {
	// to format of Day
	var day = date.getDate();
	var d = day < 10? "0" + day: new String(day);

	// to format of Month
	var month = date.getMonth() + 1;
	var m = month < 10? "0" + month: new String(month);

	return new String(date.getFullYear()) + m + d;
}

function validateDateFutureExecute(form) {
	oDateFuture = new dateFuture();
	var fields = new Array();
	var focusField = null;
	for (indx in oDateFuture) {
		var fMonth = form [oDateFuture [indx][0]];
		fMonth.value = form [oDateFuture [indx][0]].value = trim(form [oDateFuture [indx][0]].value);
		if (fMonth.type == 'text') {
			// get rest of date fields (as variable-arguments)
			var fDay = form [oDateFuture [indx][2]("day")];
			var fYear = form [oDateFuture [indx][2]("year")];
			fDay.value = form [oDateFuture [indx][2]("day")].value = trim(form [oDateFuture [indx][2]("day")].value);
			fYear.value = form [oDateFuture [indx][2]("year")].value = trim(form [oDateFuture [indx][2]("year")].value);

			if (isBlank(fMonth.value) && isBlank(fDay.value) && isBlank(fYear.value)) {
				// not date
				continue;
			}
			if (isFutureDate(fDay.value, fMonth.value, fYear.value)) {
				fMonth.focus();
				alert(oDateFuture [indx][1]);
				return false;
			}
		}
	}
	return true;
}

// if fields of date are entered, then it checks them values on correct date format
function validateDateValidExecute(form) {
	oDateValid = new dateValid();
	for (indx in oDateValid) {
		var fMonth = form [oDateValid [indx][0]];
		fMonth.value = form [oDateValid [indx][0]].value = trim(form [oDateValid [indx][0]].value);
		if (fMonth.type == 'text') {
			// get the rest of fields for completing date
			var fDay = form [oDateValid [indx][2]("day")];
			var fYear = form [oDateValid [indx][2]("year")];
			fDay.value = form [oDateValid [indx][2]("day")].value = trim(form [oDateValid [indx][2]("day")].value);
			fYear.value = form [oDateValid [indx][2]("year")].value = trim(form [oDateValid [indx][2]("year")].value);

			// get their values
			var vM = fMonth.value;
			var vD = fDay.value;
			var vY = fYear.value;

			// check it is empty or not
			var bM = isBlank(vM);
			var bD = isBlank(vD);
			var bY = isBlank(vY);
			if (bM && bD && bY) {
				continue;
			}
			var reg = new RegExp("/[^0-9]+/");
			if ((reg.test(vM) || reg.test(vD) || reg.test(vY)) || (bM || bD || bY) || !isValidDate(vD, vM, vY) || (vY.length != 2 && vY.length != 4)) {
				// Neither full entered fields of date, nor values is number,
				// nor completed date by the field values is not valid date
				fMonth.focus();
				alert(oDateValid [indx][1]);
				return false;
			}
		}
	}
	return true;
}

// check only fields of date are entered
function validateDateRequiredExecute(form) {
	oDateRequired = new dateRequired();
	for (indx in oDateRequired) {
		var fMonth = form [oDateRequired [indx][0]];
		fMonth.value = form [oDateRequired [indx][0]].value = trim(form [oDateRequired [indx][0]].value);
		if (fMonth.type == 'text') {
			var fDay = form [oDateRequired [indx][2]("day")];
			var fYear = form [oDateRequired [indx][2]("year")];
			fDay.value = form [oDateRequired [indx][2]("day")].value = trim(form [oDateRequired [indx][2]("day")].value);
			fYear.value = form [oDateRequired [indx][2]("year")].value = trim(form [oDateRequired [indx][2]("year")].value);

			if (isBlank(fMonth.value) || isBlank(fDay.value)
				|| isBlank(fYear.value)) {

				fMonth.focus();
				alert(oDateRequired [indx][1]);
				return false;
			}
		}
	}
	return true;
}

function validateConditionRequiredExecute(form) {
	oConditionRequired = new conditionRequired();
	for (x in oConditionRequired) {
		var field = form [oConditionRequired [x][0]];
		if (field.type == 'text') {
            //trim the spaces
			if (field.type == 'text' ) {
   				field.value = form[oConditionRequired[x][0]].value = trim(field.value);
			}

			if (field.value == null || field.value == '') continue;
			var  fDepends = listDependedFields(form, oConditionRequired [x][2]("dependedField"));
			for (var i = 0; i < fDepends.length; ++ i) {
				var fD = fDepends [i];
				if (fD != null && fD.value != null && trim(fD.value) != '') {
					continue;
				}
				fD.focus();
				alert(oConditionRequired [x][1]);
				return false;
			}
		}
	}
	return true;
}

function listDependedFields(form, fields) {
	if (fields == null || fields == '') return new Array();
	var fieldNames = new String(fields).split(',');
	var res = new Array();
	for (var i = 0; i < fieldNames.length; ++ i) {
		if (form[fieldNames [i]].type == 'text' ||
	        form[fieldNames [i]].type == 'textarea' ||
    	    form[fieldNames [i]].type == 'file' ||
        	form[fieldNames [i]].type == 'password') {
            form[fieldNames [i]].value = trim(form[fieldNames [i]].value);
		}
		form[fieldNames [i]].value = trim(form[fieldNames [i]].value);
		res [i] = form[fieldNames [i]];
	}
	return res;
}

function validateCheckBoxStateExecute(form) {
	var isValid = true;
    var focusField = null;
    var i = 0;
    var fields = new Array();
    oCheckBoxState = new checkBoxState();
    for (x in oCheckBoxState) {
    	var field = form[oCheckBoxState[x][0]];

        if (field.type == 'checkbox') {

        	var value = field.checked;
            if (value != true) {
	        	focusField = field;
	            fields[i++] = oCheckBoxState[x][1];
	            isValid = false;
	            break;
	        }
    	}
	}
	if (fields.length > 0) {
    	focusField.focus();
        alert(fields.join('\n'));
	}
    return isValid;
}

function validateByteExecute(form) {
    var bValid = true;
    var focusField = null;
    var i = 0;
    var fields = new Array();
    oByte = new ByteValidations();
    for (x in oByte) {
        var field = form[oByte[x][0]];
        
        if (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 (!isAllDigits(value)) {
                    bValid = false;
                    if (i == 0) {
                        focusField = field;
                    }
                    fields[i++] = oByte[x][1];

                } else {

                    var iValue = parseInt(value);
                    if (isNaN(iValue) || !(iValue >= -128 && iValue <= 127)) {
                        if (i == 0) {
                            focusField = field;
                        }
                        fields[i++] = oByte[x][1];
                        bValid = false;
                    }
                }
            }
            
        }
    }
    if (fields.length > 0) {
       focusField.focus();
       alert(fields.join('\n'));
    }
    return bValid;
}
            
            
function validateShortExecute(form) {
    var bValid = true;
    var focusField = null;
    var i = 0;
    var fields = new Array();
    oShort = new ShortValidations();
    for (x in oShort) {
        var field = form[oShort[x][0]];
        
        if (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 (!isAllDigits(value)) {
                    bValid = false;
                    if (i == 0) {
                        focusField = field;
                    }
                    fields[i++] = oShort[x][1];

                } else {
            
                    var iValue = parseInt(value);
                    if (isNaN(iValue) || !(iValue >= -32768 && iValue <= 32767)) {
                        if (i == 0) {
                            focusField = field;
                        }
                        fields[i++] = oShort[x][1];
                        bValid = false;
                    }
               }
           }
        }
    }
    if (fields.length > 0) {
       focusField.focus();
       alert(fields.join('\n'));
    }
    return bValid;
}            
            
function validateIntegerExecute(form) {
    var bValid = true;
    var focusField = null;
    var i = 0;
    var fields = new Array();
    oInteger = new IntegerValidations();
    for (x in oInteger) {
        var field = form[oInteger[x][0]];
        if (field == undefined) continue;
        if (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 (!isAllDigits(value)) {
                    bValid = false;
                    if (i == 0) {
                        focusField = field;
                    }
                    fields[i++] = oInteger[x][1];
                    
                } else {
                    var iValue = parseInt(value);
                    if (isNaN(iValue) || !(iValue >= -2147483648 && iValue <= 2147483647)) {
                        if (i == 0) {
                            focusField = field;
                        }
                        fields[i++] = oInteger[x][1];
                        bValid = false;
                   }
               }
           }
        }
    }
    if (fields.length > 0) {
       focusField.focus();
       alert(fields.join('\n'));
    }
    return bValid;
}

function 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 = "01234567";
       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;
}
            
function validateFloatExecute(form) {
    var bValid = true;
    var focusField = null;
    var i = 0;
    var fields = new Array();
    oFloat = new FloatValidations();
    for (x in oFloat) {
        var field = form[oFloat[x][0]];
        
        if (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('.');
                var joinedString= tempArray.join('');

                if (!isAllDigits(joinedString)) {
                    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) {
       focusField.focus();
       alert(fields.join('\n'));
    }
    return bValid;
}
            
function validateDateExecute(form) {
    var bValid = true;
    var focusField = null;
    var i = 0;
    var fields = new Array();
    oDate = new DateValidations();
    for (x in oDate) {
        var value = form[oDate[x][0]].value;
        var datePattern = oDate[x][2]("datePatternStrict");
        if ((form[oDate[x][0]].type == 'text' ||
             form[oDate[x][0]].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 = new RegExp("^(\\d{2})(\\d{2})(\\d{4})$");
              } else if (iDelim1 == orderDay) {
                 dateRegexp = new RegExp("^(\\d{2})(\\d{2})[" + delim2 + "](\\d{4})$");
              } else if (iDelim2 == orderYear) {
                 dateRegexp = new RegExp("^(\\d{2})[" + delim1 + "](\\d{2})(\\d{4})$");
              } else {
                 dateRegexp = new RegExp("^(\\d{2})[" + delim1 + "](\\d{2})[" + delim2 + "](\\d{4})$");
              }
              var matched = dateRegexp.exec(value);
              if(matched != null) {
                 if (!isValidDate(matched[2], matched[1], matched[3])) {
                    if (i == 0) {
                        focusField = form[oDate[x][0]];
                    }
                    fields[i++] = oDate[x][1];
                    bValid =  false;
                 }
              } else {
                 if (i == 0) {
                     focusField = form[oDate[x][0]];
                 }
                 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 = new RegExp("^(\\d{2})(\\d{2})(\\d{4})$");
              } else if (iDelim1 == orderMonth) {
                  dateRegexp = new RegExp("^(\\d{2})(\\d{2})[" + delim2 + "](\\d{4})$");
              } else if (iDelim2 == orderYear) {
                  dateRegexp = new RegExp("^(\\d{2})[" + delim1 + "](\\d{2})(\\d{4})$");
              } else {
                  dateRegexp = new RegExp("^(\\d{2})[" + delim1 + "](\\d{2})[" + delim2 + "](\\d{4})$");
              }
              var matched = dateRegexp.exec(value);
              if(matched != null) {
                  if (!isValidDate(matched[1], matched[2], matched[3])) {
                      if (i == 0) {
                          focusField = form[oDate[x][0]];
                      }
                      fields[i++] = oDate[x][1];
                      bValid =  false;
                   }
              } else {
                  if (i == 0) {
                      focusField = form[oDate[x][0]];
                  }
                  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 = new RegExp("^(\\d{4})(\\d{2})(\\d{2})$");
              } else if (iDelim1 == orderMonth) {
                  dateRegexp = new RegExp("^(\\d{4})(\\d{2})[" + delim2 + "](\\d{2})$");
              } else if (iDelim2 == orderDay) {
                  dateRegexp = new RegExp("^(\\d{4})[" + delim1 + "](\\d{2})(\\d{2})$");
              } else {
                  dateRegexp = new RegExp("^(\\d{4})[" + delim1 + "](\\d{2})[" + delim2 + "](\\d{2})$");
              }
              var matched = dateRegexp.exec(value);
              if(matched != null) {
                  if (!isValidDate(matched[3], matched[2], matched[1])) {
                      if (i == 0) {
                          focusField = form[oDate[x][0]];
                       }
                       fields[i++] = oDate[x][1];
                       bValid =  false;
                   }
               } else {
                   if (i == 0) {
                       focusField = form[oDate[x][0]];
                   }
                   fields[i++] = oDate[x][1];
                   bValid =  false;
               }
          } else {
              if (i == 0) {
                  focusField = form[oDate[x][0]];
              }
              fields[i++] = oDate[x][1];
              bValid =  false;
          }
       }
    }
    if (fields.length > 0) {
       focusField.focus();
       alert(fields.join('\n'));
    }
    return bValid;
}
            
function validateIntRangeExecute(form) {
    var isValid = true;
    var focusField = null;
    var i = 0;
    var fields = new Array();
    oRange = new intRange();
    for (x in oRange) {
        var field = form[oRange[x][0]];
        
        if ((field.type == 'text' || field.type == 'textarea' || field.type == 'hidden') 
        		&& (field.value.length > 0)) {
            
            var iMin = parseInt(oRange[x][2]("min"));
            var iMax = parseInt(oRange[x][2]("max"));
            var iValue = parseInt(field.value);
            if (!(iValue >= iMin && iValue <= iMax)) {
                if (i == 0) focusField = field;

                fields[i++] = oRange[x][1];
                isValid = false;
            }
        }
    }
    if (fields.length > 0) {
    	if (field.type != 'hidden') focusField.focus();
        alert(fields.join('\n'));
    }
    return isValid;
}
            
function validateLengthRangeExecute(form) {
    var isValid = true;
    var focusField = null;
    var i = 0;
    var fields = new Array();
    oRange = new lengthRange();
    for (x in oRange) {
        var field = form[oRange[x][0]];
        if (field == undefined) continue;
        if ((field.type == 'text' || field.type == 'password' || field.type == 'textarea' 
        		|| field.type == 'hidden') && (field.value.length > 0)) {
            
            var iMin = parseInt(oRange[x][2]("min"));
            var iMax = parseInt(oRange[x][2]("max"));
            var iValue = field.value.length;
            if (!(iValue >= iMin && iValue <= iMax)) {
                if (i == 0) focusField = field;

                fields[i++] = oRange[x][1];
                isValid = false;
                break;
            }
        }
    }
    if (fields.length > 0) {
    	if (field.type != 'hidden') focusField.focus();
        alert(fields.join('\n'));
    }
    return isValid;
}
            
function validateFloatRangeExecute(form) {
    var isValid = true;
    var focusField = null;
    var i = 0;
    var fields = new Array();
    oRange = new floatRange();
    for (x in oRange) {
        var field = form[oRange[x][0]];
        
        if ((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) {
        focusField.focus();
        alert(fields.join('\n'));
    }
    return isValid;
}
            
function validateCreditCardExecute(form) {
    var bValid = true;
    var focusField = null;
    var i = 0;
    var fields = new Array();
    oCreditCard = new creditCard();
    for (x in oCreditCard) {
        if ((form[oCreditCard[x][0]].type == 'text' 
	        	|| form[oCreditCard[x][0]].type == 'textarea') 
    	    	&& (form[oCreditCard[x][0]].value.length > 0)) {
            if (!luhnCheck(form[oCreditCard[x][0]].value)) {
                if (i == 0) focusField = form[oCreditCard[x][0]];

                fields[i++] = oCreditCard[x][1];
                bValid = false;
            }
        }
    }
    if (fields.length > 0) {
        focusField.focus();
        alert(fields.join('\n'));
    }
	return bValid;
}

/**
 * Reference: http://www.ling.nwu.edu/~sburke/pub/luhn_lib.pl
 */
function luhnCheck(cardNumber) {
    if (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 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;
}


function validateEmailExecute(form) {
    var bValid = true;
    var focusField = null;
    var i = 0;
    var fields = new Array();
    oEmail = new email();
    for (x in oEmail) {
    	if ((form[oEmail[x][0]]) == undefined) continue;
        if ((form[oEmail[x][0]].type == 'text' ||
             form[oEmail[x][0]].type == 'textarea') &&
            (form[oEmail[x][0]].value.length > 0)) {
            if (!checkEmail(form[oEmail[x][0]].value)) {
                if (i == 0) {
                    focusField = form[oEmail[x][0]];
                }
                fields[i++] = oEmail[x][1];
                bValid = false;
            }
        }
    }
    if (fields.length > 0) {
        focusField.focus();
        alert(fields.join('\n'));
    }
	return bValid;
}

/**
 * Reference: Sandeep V. Tamhankar (stamhankar@hotmail.com),
 * http://javascript.internet.com
 */
function checkEmail(emailStr) {
	if (emailStr.length == 0) {
    	return true;
   	}
   	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];
   	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 domainArray=domain.match(domainPat);
   	if (domainArray == null) return false;

   	var atomPat=new RegExp(atom,"g");
   	var domArr=domain.match(atomPat);
	var len=domArr.length;
   	if ((domArr[domArr.length-1].length < 2) || (domArr[domArr.length-1].length > 3)) {
    	return false;
   	}
   	if (len < 2) {
    	return false;
   	}
	return true;
}            

function validateMinLengthExecute(form) {
	var isValid = true;
    var focusField = null;
    var i = 0;
    var fields = new Array();
    oMinLength = new minlength();
    for (x in oMinLength) {
    	var field = form[oMinLength[x][0]];
         
        if (field.type == 'text' || field.type == 'textarea') {
             
			var iMin = parseInt(oMinLength[x][2]("minlength"));
            if ((trim(field.value).length > 0) && (field.value.length < iMin)) {
            	if (i == 0) focusField = field;
				fields[i++] = oMinLength[x][1];
                isValid = false;
			}
		}
	}
    if (fields.length > 0) {
    	focusField.focus();
        alert(fields.join('\n'));
     }
     return isValid;
}   

function isEmpty(obj) {
	return obj.value == null || obj.value == '';
}