/* - - - - - - - - - - - - - - - - - - - - - - -
 JavaScript
 Wednesday, March 17, 2004 12:11:38 AM
 HAPedit 3.0.11.102
 - - - - - - - - - - - - - - - - - - - - - - - */

// Check browser version
var isNav4 = false, isNav5 = false, isIE4 = false
//var strSeperator = "/"; 
var strSeperator = "-"; 
// If you are using any Java validation on the back side you will want to use the / because 
// Java date validations do not recognize the dash as a valid date separator.
var vDateType = 3; // Global value for type of date format
//                1 = mm/dd/yyyy
//                2 = yyyy/dd/mm  (Unable to do date check at this time)
//                3 = dd/mm/yyyy
var vYearType = 4; //Set to 2 or 4 for number of digits in the year for Netscape
var vYearLength = 2; // Set to 4 if you want to force the user to enter 4 digits for the year before validating.
var err = 0; // Set the error code to a default of zero
if(navigator.appName == "Netscape")
{
    if (navigator.appVersion < "5")
    {
        isNav4 = true;
        isNav5 = false;
    }
    else
        if (navigator.appVersion > "4")
        {
            isNav4 = false;
            isNav5 = true;
        }
}
else
{
    isIE4 = true;
}
function DateFormat(vDateName, vDateValue, e, dateCheck, dateType)
{
vDateType = dateType;
// vDateName = object name
// vDateValue = value in the field being checked
// e = event
// dateCheck 
// True  = Verify that the vDateValue is a valid date
// False = Format values being entered into vDateValue only
// vDateType
// 1 = mm/dd/yyyy
// 2 = yyyy/mm/dd
// 3 = dd/mm/yyyy
//Enter a tilde sign for the first number and you can check the variable information.
if (vDateValue == "~")
{
    alert("AppVersion = "+navigator.appVersion+" \nNav. 4 Version = "+isNav4+" \nNav. 5 Version = "+isNav5+" \nIE Version = "+isIE4+" \nYear Type = "+vYearType+" \nDate Type = "+vDateType+" \nSeparator = "+strSeperator);
    vDateName.value = "";
    vDateName.focus();
    return true;
}
var whichCode = (window.Event) ? e.which : e.keyCode;
// Check to see if a seperator is already present.
// bypass the date if a seperator is present and the length greater than 8
if (vDateValue.length > 8 && isNav4)
{
    if ((vDateValue.indexOf("-") >= 1) || (vDateValue.indexOf("/") >= 1))
        return true;
}
//Eliminate all the ASCII codes that are not valid
var alphaCheck = " abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ/-";
if (alphaCheck.indexOf(vDateValue) >= 1)
{
    if (isNav4)
    {
        vDateName.value = "";
        vDateName.focus();
        vDateName.select();
        return false;
    }
    else
    {
        vDateName.value = vDateName.value.substr(0, (vDateValue.length-1));
        return false;
    }
}
if (whichCode == 8) //Ignore the Netscape value for backspace. IE has no value
    return false;
else
{
    //Create numeric string values for 0123456789/
    //The codes provided include both keyboard and keypad values
    var strCheck = '47,48,49,50,51,52,53,54,55,56,57,58,59,95,96,97,98,99,100,101,102,103,104,105';
    if (strCheck.indexOf(whichCode) != -1)
    {
        if (isNav4)
        {
            if (((vDateValue.length < 6 && dateCheck) || (vDateValue.length == 7 && dateCheck)) && (vDateValue.length >=1))
            {
                alert("Invalid Date\nPlease Re-Enter");
                vDateName.value = "";
                vDateName.focus();
                vDateName.select();
                return false;
            }
            if (vDateValue.length == 6 && dateCheck)
            {
                var mDay = vDateName.value.substr(2,2);
                var mMonth = vDateName.value.substr(0,2);
                var mYear = vDateName.value.substr(4,4)
                //Turn a two digit year into a 4 digit year
                if (mYear.length == 2 && vYearType == 4)
                {
                    var mToday = new Date();
                    //If the year is greater than 30 years from now use 19, otherwise use 20
                    var checkYear = mToday.getFullYear() + 30; 
                    var mCheckYear = '20' + mYear;
                    if (mCheckYear >= checkYear)
                        mYear = '19' + mYear;
                    else
                        mYear = '20' + mYear;
                }
                var vDateValueCheck = mMonth+strSeperator+mDay+strSeperator+mYear;
                if (!dateValid(vDateValueCheck))
                {
                    alert("Invalid Date\nPlease Re-Enter");
                    vDateName.value = "";
                    vDateName.focus();
                    vDateName.select();
                    return false;
                }
                return true;
            }
            else
            {
                // Reformat the date for validation and set date type to a 1
                if (vDateValue.length >= 8  && dateCheck)
                {
                    if (vDateType == 1) // mmddyyyy
                    {
                        var mDay = vDateName.value.substr(2,2);
                        var mMonth = vDateName.value.substr(0,2);
                        var mYear = vDateName.value.substr(4,4)
                        vDateName.value = mMonth+strSeperator+mDay+strSeperator+mYear;
                    }
                    if (vDateType == 2) // yyyymmdd
                    {
                        var mYear = vDateName.value.substr(0,4)
                        var mMonth = vDateName.value.substr(4,2);
                        var mDay = vDateName.value.substr(6,2);
                        vDateName.value = mYear+strSeperator+mMonth+strSeperator+mDay;
                    }
                    if (vDateType == 3) // ddmmyyyy
                    {
                        var mMonth = vDateName.value.substr(2,2);
                        var mDay = vDateName.value.substr(0,2);
                        var mYear = vDateName.value.substr(4,4)
                        vDateName.value = mDay+strSeperator+mMonth+strSeperator+mYear;
                    }
                    //Create a temporary variable for storing the DateType and change
                    //the DateType to a 1 for validation.
                    var vDateTypeTemp = vDateType;
                    vDateType = 1;
                    var vDateValueCheck = mMonth+strSeperator+mDay+strSeperator+mYear;
                    if (!dateValid(vDateValueCheck))
                    {
                        alert("Invalid Date\nPlease Re-Enter");
                        vDateType = vDateTypeTemp;
                        vDateName.value = "";
                        vDateName.focus();
                        vDateName.select();
                        return false;
                    }
                    vDateType = vDateTypeTemp;
                    return true;
                }
                else
                {
                    if (((vDateValue.length < 8 && dateCheck) || (vDateValue.length == 9 && dateCheck)) && (vDateValue.length >=1))
                    {
                        alert("Invalid Date\nPlease Re-Enter");
                        vDateName.value = "";
                        vDateName.focus();
                        vDateName.select();
                        return false;
                    }
                }
            }
        }
        else
        {
            // Non isNav Check
            if (((vDateValue.length < 8 && dateCheck) || (vDateValue.length == 9 && dateCheck)) && (vDateValue.length >=1))
            {
                alert("Invalid Date\nPlease Re-Enter");
                vDateName.value = "";
                vDateName.focus();
                return true;
            }
            // Reformat date to format that can be validated. mm/dd/yyyy
            if (vDateValue.length >= 8 && dateCheck)
            {
                // Additional date formats can be entered here and parsed out to
                // a valid date format that the validation routine will recognize.
                if (vDateType == 1) // mm/dd/yyyy
                {
                    var mMonth = vDateName.value.substr(0,2);
                    var mDay = vDateName.value.substr(3,2);
                    var mYear = vDateName.value.substr(6,4)
                }
                if (vDateType == 2) // yyyy/mm/dd
                {
                    var mYear = vDateName.value.substr(0,4)
                    var mMonth = vDateName.value.substr(5,2);
                    var mDay = vDateName.value.substr(8,2);
                }
                if (vDateType == 3) // dd/mm/yyyy
                {
                    var mDay = vDateName.value.substr(0,2);
                    var mMonth = vDateName.value.substr(3,2);
                    var mYear = vDateName.value.substr(6,4)
                }
                if (vYearLength == 4) 
                {
                    if (mYear.length < 4)
                    {
                        alert("Invalid Date\nPlease Re-Enter");
                        vDateName.value = "";
                        vDateName.focus();
                        return true;
                    }
                }
                // Create temp. variable for storing the current vDateType
                var vDateTypeTemp = vDateType;
                // Change vDateType to a 1 for standard date format for validation
                // Type will be changed back when validation is completed.
                vDateType = 1;
                // Store reformatted date to new variable for validation.
                var vDateValueCheck = mMonth+strSeperator+mDay+strSeperator+mYear;
                if (mYear.length == 2 && vYearType == 4 && dateCheck)
                {
                    //Turn a two digit year into a 4 digit year
                    var mToday = new Date();
                    //If the year is greater than 30 years from now use 19, otherwise use 20
                    var checkYear = mToday.getFullYear() + 30; 
                    var mCheckYear = '20' + mYear;
                    if (mCheckYear >= checkYear)
                        mYear = '19' + mYear;
                    else
                        mYear = '20' + mYear;
                    vDateValueCheck = mMonth+strSeperator+mDay+strSeperator+mYear;
                    // Store the new value back to the field.  This function will
                    // not work with date type of 2 since the year is entered first.
                    if (vDateTypeTemp == 1) // mm/dd/yyyy
                        vDateName.value = mMonth+strSeperator+mDay+strSeperator+mYear;
                    if (vDateTypeTemp == 3) // dd/mm/yyyy
                        vDateName.value = mDay+strSeperator+mMonth+strSeperator+mYear;
                } 
                if (!dateValid(vDateValueCheck))
                {
                    alert("Invalid Date\nPlease Re-Enter");
                    vDateType = vDateTypeTemp;
                    vDateName.value = "";
                    vDateName.focus();
                    return true;
                }
                vDateType = vDateTypeTemp;
                return true;
            }
            else
            {
                if (vDateType == 1)
                {
                    if (vDateValue.length == 2)
                    {
                        vDateName.value = vDateValue+strSeperator;
                    }
                    if (vDateValue.length == 5)
                    {
                        vDateName.value = vDateValue+strSeperator;
                    }
                }
                if (vDateType == 2)
                {
                    if (vDateValue.length == 4)
                    {
                        vDateName.value = vDateValue+strSeperator;
                    }
                    if (vDateValue.length == 7)
                    {
                        vDateName.value = vDateValue+strSeperator;
                    }
                } 
                if (vDateType == 3)
                {
                    if (vDateValue.length == 2)
                    {
                        vDateName.value = vDateValue+strSeperator;
                    }
                    if (vDateValue.length == 5)
                    {
                        vDateName.value = vDateValue+strSeperator;
                    }
                }
                return true;
            }
        }
        if (vDateValue.length == 10&& dateCheck)
        {
            if (!dateValid(vDateName))
            {
                // Un-comment the next line of code for debugging the dateValid() function error messages
                //alert(err);  
                alert("Invalid Date\nPlease Re-Enter");
                vDateName.focus();
                vDateName.select();
            }
        }
        return false;
    }
    else
    {
        // If the value is not in the string return the string minus the last
        // key entered.
        if (isNav4)
        {
            vDateName.value = "";
            vDateName.focus();
            vDateName.select();
            return false;
        }
        else
        {
            vDateName.value = vDateName.value.substr(0, (vDateValue.length-1));
            return false;
        }
    }
   }
}
function dateValid(objName) {
var strDate;
var strDateArray;
var strDay;
var strMonth;
var strYear;
var intday;
var intMonth;
var intYear;
var booFound = false;
var datefield = objName;
var strSeparatorArray = new Array("-"," ","/",".");
var intElementNr;
// var err = 0;
var strMonthArray = new Array(12);
strMonthArray[0] = "Jan";
strMonthArray[1] = "Feb";
strMonthArray[2] = "Mar";
strMonthArray[3] = "Apr";
strMonthArray[4] = "May";
strMonthArray[5] = "Jun";
strMonthArray[6] = "Jul";
strMonthArray[7] = "Aug";
strMonthArray[8] = "Sep";
strMonthArray[9] = "Oct";
strMonthArray[10] = "Nov";
strMonthArray[11] = "Dec";
//strDate = datefield.value;
strDate = objName;
if (strDate.length < 1) {
return true;
}
for (intElementNr = 0; intElementNr < strSeparatorArray.length; intElementNr++) {
if (strDate.indexOf(strSeparatorArray[intElementNr]) != -1) {
strDateArray = strDate.split(strSeparatorArray[intElementNr]);
if (strDateArray.length != 3) {
err = 1;
return false;
}
else {
strDay = strDateArray[0];
strMonth = strDateArray[1];
strYear = strDateArray[2];
}
booFound = true;
   }
}
if (booFound == false) {
if (strDate.length>5) {
strDay = strDate.substr(0, 2);
strMonth = strDate.substr(2, 2);
strYear = strDate.substr(4);
   }
}
//Adjustment for short years entered
if (strYear.length == 2) {
strYear = '20' + strYear;
}
strTemp = strDay;
strDay = strMonth;
strMonth = strTemp;
intday = parseInt(strDay, 10);
if (isNaN(intday)) {
err = 2;
return false;
}
intMonth = parseInt(strMonth, 10);
if (isNaN(intMonth)) {
for (i = 0;i<12;i++) {
if (strMonth.toUpperCase() == strMonthArray[i].toUpperCase()) {
intMonth = i+1;
strMonth = strMonthArray[i];
i = 12;
   }
}
if (isNaN(intMonth)) {
err = 3;
return false;
   }
}
intYear = parseInt(strYear, 10);
if (isNaN(intYear)) {
err = 4;
return false;
}
if (intMonth>12 || intMonth<1) {
err = 5;
return false;
}
if ((intMonth == 1 || intMonth == 3 || intMonth == 5 || intMonth == 7 || intMonth == 8 || intMonth == 10 || intMonth == 12) && (intday > 31 || intday < 1)) {
err = 6;
return false;
}
if ((intMonth == 4 || intMonth == 6 || intMonth == 9 || intMonth == 11) && (intday > 30 || intday < 1)) {
err = 7;
return false;
}
if (intMonth == 2) {
if (intday < 1) {
err = 8;
return false;
}
if (LeapYear(intYear) == true) {
if (intday > 29) {
err = 9;
return false;
   }
}
else {
if (intday > 28) {
err = 10;
return false;
      }
   }
}
return true;
}
function LeapYear(intYear) {
if (intYear % 100 == 0) {
if (intYear % 400 == 0) { return true; }
}
else {
if ((intYear % 4) == 0) { return true; }
}
return false;
}
//  End -->


function isDate(dateStr)
{
    var datePat = /^(\d{1,2})(\/|-)(\d{1,2})(\/|-)(\d{4})$/;
    var matchArray = dateStr.match(datePat);    // is the format OK?
    
    if (matchArray == null)
    {
        alert("Please enter date as either dd/mm/yyyy or dd-mm-yyyy.");
        return false;
    }
    
    month = matchArray[3];  //  p@rse date into variables.
    day = matchArray[1];
    year = matchArray[5];
    
    if (month < 1 || month > 12)
    {
        alert("Month must be between 1 and 12.");
        return false;
    }
    if (day < 1 || day > 31)
    {
        alert("Day must be between 1 and 31.");
        return false;
    }
    if ((month == 4 || month == 6 || month == 9 || month == 11) && day == 31)
    {
        alert("Month " + month + " doesn't have 31 days!");
        return false;
    }
    if (month == 2)
    {
        var isLeap = (year%4 == 0 && (year%100 != 0 || year%400 == 0));
        if (day > 29 || (day == 29 && !isLeap))
        {
            alert("February " + year + " doesn't have " + days + " days!");
            return false;
        }
    }
    return true;    //  date is valid
}