// THIS CODE IS COPIED IN SERVER_SCRIPTS.ASP because ASP
// doesn't let you include things happily.
// If you change anything here, change it in server_scripts.asp as well.
// It used to be in a file called isvalid.asp

// ***********       Filename: isvalid.asp      ***********

// The "isvalid_*" functions check for various kinds of possible inputs,
// and returns true if it is valid, false if there's an error.  Also 
// appends to the errorList that will eventually get shown to the user.

// As they are used in the automatically generated javascript, the return values 
// of the isvalid* functions aren't really relevant.  In the end, validate() will
// return true or false depending on whether the global variable errorList has been
// modified (which happens whenever an isvalid* function finds something wrong).
// But they return true and false values so that people can use them separately
// if desired.


function isvalid_alpha_num(field_name, test_value, description, min_val, max_val, null_ok)
{
	if ( (null_ok == true) && (test_value == ""))
	{
		return true;
	}
	else if ( ( null_ok == false) && (test_value == "") )
	{
		errorList.Add(field_name, description + " cannot be blank.\n");
		return false;
	}
	else if ( !isNaN(min_val) && test_value.length < min_val ) 
	{
		errorList.Add(field_name, description + " must be at least " + 
								  min_val + " characters long.\n");
		return false;
	}
	else if ( !isNaN(max_val) && test_value.length > max_val ) 
	{
		errorList.Add (field_name, description + " cannot be greater than " + 
								   max_val + " characters long.\n");
		return false;
	}

	return true;
}

// Check for a valid number, falling between a certain range

function isvalid_num(field_name, test_value, description, min_val, max_val, null_ok)
{
	if ( (null_ok == true) && (test_value == ""))
	{
		return true;
	}
	else if ( isNaN(parseFloat(test_value)) || isNaN(test_value) )
	{
		errorList.Add(field_name, description + " requires a valid number.\n");
		return false;
	}
	else if ( (!isNaN(min_val)) && ( parseFloat(test_value) < min_val) )
	{
		errorList.Add(field_name, description + " must not be less than than " + 
								  min_val + ".\n");
		return false;
	}
	else if ( (!isNaN(max_val)) && ( parseFloat(test_value) > max_val) )
	{
		errorList.Add(field_name, description + " must not be greater than " + 
								  max_val + ".\n");
		return false;
	}

	return true;
}

// Check for a valid integer, falling between a certain range

function isvalid_int(field_name, test_value, description, min_val, max_val, null_ok)
{
	var str = new String(test_value);

	if ( (null_ok == true) && (str == ""))
	{
		return true;
	}
	else if ( isNaN(str) || (str.search(/\./) != -1) ||
			  isNaN(parseInt(str)) )
	{
		errorList.Add(field_name, description + " requires an integer value.\n");
		return false;
	}
	else if ( (!isNaN(min_val)) && (parseInt(str) < min_val) )
	{
		errorList.Add(field_name, description + " must not be less than than " +
								  min_val + ".\n");
		return false;
	}
	else if ( (!isNaN(max_val)) && ( parseInt(str) > max_val) )
	{
		errorList.Add(field_name, description + " must not be greater than " + 
										 max_val + ".\n");
		return false;
	}

	return true;
}

// Check for valid currency amount, falling between a certain range
// valid formats: 25, 25.7, 25.75

function isvalid_currency(field_name, test_value, description, min_val, max_val, null_ok)
{
	if ( (null_ok == true) && (test_value == ""))
	{
		return true;
	}

	//	See if it's even a valid number, and check to make sure it only goes to hundredths

	else if ( isNaN(parseFloat(test_value)) || ( (100 * test_value) % 1 != 0 ) )
	{
		errorList.Add(field_name, description + " is not a valid currency.\n");
		return false;
	}
	else if ( (!isNaN(min_val)) && ( parseFloat(test_value) < min_val) )
	{
		errorList.Add(field_name, description + " must not be less than than " + 
										 min_val + ".\n");
		return false;
	}
	else if ( (!isNaN(max_val)) && ( parseFloat(test_value) > max_val) )
	{
		errorList.Add(field_name, description + " must not be greater than " + 
										 max_val + ".\n");
		return false;
	}

	return true;
}

// Check for valid e-mail Address

function isvalid_email(field_name, test_value, description, min_val, max_val, null_ok)
{
	var email = /([\w.\-]+)@([\w.\-]+)\.([\w.\-]+)/;	// This is a regexp pattern match for an e-mail
	var str = new String(test_value);

	if ( (null_ok == true) && (str == ""))
	{
		return true;
	}
	else if ( !str.match(email) )
	{
		errorList.Add(field_name, description + " requires an e-mail Address.\n");
		return false;
	}
	else if ( !isNaN(min_val) && str.length < min_val ) 
	{
		errorList.Add(field_name, description + " must be at least " + 
								  min_val + " characters long.\n");
		return false;
	}
	else if ( !isNaN(max_val) && str.length > max_val ) 
	{
		errorList.Add (field_name, description + " cannot be greater than " + 
								   max_val + " characters long.\n");
		return false;
	}
	
	return true;
}


// Check for valid url

function isvalid_url(field_name, test_value, description, min_val, max_val, null_ok)
{
	var url = /(\w+):\/\/([\w.]+)(\S*)/;	// This is a regexp pattern match for a url
	var str = new String(test_value);
	
	if ( (null_ok == true) && (str == ""))
	{
		return true;
	}
	else if ( !str.match(url) )
	{
		errorList.Add(field_name, description + " requires a valid URL.\n");
		return false;
	}
	else if ( !isNaN(min_val) && str.length < min_val ) 
	{
		errorList.Add(field_name, description + " must be at least " + 
								  min_val + " characters long.\n");
		return false;
	}
	else if ( !isNaN(max_val) && str.length > max_val ) 
	{
		errorList.Add (field_name, description + " cannot be greater than " + 
								   max_val + " characters long.\n");
		return false;
	}
	
	return true;
}


function isvalid_date(field_name, test_value, description, min_val, max_val, null_ok)
{
	var str = new String(test_value);
	
	if ( (null_ok == true) && (str == "//"))	{
		return true;
	}
	
	// date_arr[0] is the month, [1] is the date, [2] is the year
	var date_arr = test_value.split("/");
	var the_month = date_arr[0];
	var the_date = date_arr[1];
	var the_year = date_arr[2];


	if ( isNaN(the_month) || isNaN(the_date) || isNaN(the_year) )
	{
		errorList.Add(field_name, description + " is not a valid date.\n");
		return false;
	}
	
	var the_parsed_date = new Date();
	the_parsed_date.setHours(0);
	the_parsed_date.setMinutes(0);
	the_parsed_date.setSeconds(0);
	the_parsed_date.setMilliseconds(0);
	the_parsed_date.setFullYear(0);
	the_parsed_date.setMonth(0);
	the_parsed_date.setDate(1);
	
	the_parsed_date.setFullYear(the_year);
	the_parsed_date.setMonth(the_month - 1);
	the_parsed_date.setDate(the_date);
	
	var the_max_date = new Date(max_val);
	var the_min_date = new Date(min_val);
	
	if ( (the_parsed_date.getMonth() != (the_month - 1) )  || 	// JavaScript months are 0 based
	     (the_parsed_date.getFullYear() !=   the_year   )     )	
	{
		// Then either the user put in too many days for a month (like 31 for Feb)
		// or somebody's trying to throw garbage data into the database.  Either way...

		errorList.Add(field_name, description + " is not a valid date.\n");
		return false;
	}

	if ( the_parsed_date.getTime() < the_min_date.getTime() )
	{
		the_min_date_text = (the_min_date.getMonth() + 1) + "/" + the_min_date.getDate() + "/" +
							the_min_date.getFullYear();

		errorList.Add(field_name, description + " must not be earlier than " + the_min_date_text + ".\n");
		return false;
	}

	if ( the_parsed_date.getTime() > the_max_date.getTime() )
	{
		the_max_date_text = (the_max_date.getMonth() + 1) + "/" + the_max_date.getDate() + "/" +
							the_max_date.getFullYear();
	
		errorList.Add(field_name, description + " must not be later than " + the_max_date_text + ".\n");
		return false;
	}

	return true;
}





// Check for a valid zip_code

function isvalid_zip(field_name, test_value, description, min_val, max_val, null_ok)
{
	var zip = /^\d{5}([-]\d{4})?$/;	// This is a regexp pattern match for a zipcode.

	var str = new String(test_value);

	if ( (null_ok == true) && (str == ""))
	{
		return true;
	}
	else if ( !str.match(zip) )
	{
		errorList.Add(field_name, description + " requires a zip code.\n");
		return false;
	}
	else if ( str.length > max_val)
	{
		errorList.Add(field_name, description + " cannot be greater than " + max_val + " characters long.\n" );
		return false;
	}
	
	return true;
}


// Mimimalist phone number checker.  There are too many variations (international, parens or
// not, dashes or not, etc.) and different sites are inclined to put them into the db in 
// differing manners.

function isvalid_phone_num(field_name, test_value, description, min_val, max_val, null_ok)
{
	var bad_phone_num = /[^\w\(\)\-]/;
	
	var str = new String(test_value);

	if ( (null_ok == true) && (str == ""))
	{
		return true;
	}
	else if ( str.match(bad_phone_num) )
	{
		errorList.Add(field_name, description + " requires a phone number.\n");
		return false;
	}
	else if ( str.length < min_val)
	{
		errorList.Add(field_name, description + " cannot be less than " + min_val + " characters long.\n" );
		return false;
	}
	else if ( str.length > max_val)
	{
		errorList.Add(field_name, description + " cannot be greater than " + max_val + " characters long.\n" );
		return false;
	}	
	return true;
}




// ------------------------- Dictionary Object -------------------------------//

// Since standard client side JavaScript doesn't have the Dictionary Object which we 
// use to list error messages, it's up to us to create one.  Appending to a simple 
// string variable would have been easier, but it was done this way to be more flexible.
// This way, you can look up to see if something went wrong with a specific form field
// and perhaps take a separate action based on that information.
// This also lets us share the error dictionary with the server side database error
// list.  A convenient place to find everything that goes wrong.

// We Add entries by simply specifying object.key_val
// to Add and giving a value.  JavaScript's loose about it.


function ClientDictObject()
{
	this.Add = Add;
	return this;
}


// Add is a member function of ClientDictObjects.  Note to self -- look into using
// prototyping to save memory


function Add(key_val, return_val)
{
	this[key_val] = return_val;
}


function get_val(field)
{
	var the_form_field = eval("document." + field);

	if (the_form_field.type == "select-one")
	{
		return the_form_field.options[the_form_field.selectedIndex].value;
	}

	return the_form_field.value;
}


function get_date(field)	// field is in the format "formname.fieldname"
{
	// Returns a date as a string;
	// The string is returned in MM/DD/YYYY format, which Netscape doesn't always like to
	// parse.  (i.e. don't say:
	//
	// var my_date = new Date( get_date(field_name) );
	//
	// Netscape doesn't like it.  This is used by isvalid_date() and returns a string
	// because the date object will let you put things like 12/32/2000 (it becomes 1/1/2001)
	// and that should be checked for in an isvalid function.

	var date_arr = new Array();
	var the_form_field = eval("document." + field);
	
	for (var i=0; i < 3; i++)
	{
		date_arr[i] = the_form_field[i].options[the_form_field[i].selectedIndex].value;
	}
	
	var the_date = new String(date_arr[0] + "/" + date_arr[1] + "/" + date_arr[2]);
	
	return the_date;

}


function process_errors()
{
    var error_msg = "";     // A string to dump the errors into

	for (var i in errorList)
	{
        if (i != "Add")     // Because we don't want the function "Add" to show up as an error
		{
			error_msg += errorList[i];
		}
	}
	
	if ( error_msg != "")	// The error_msg isn't empty -- something went wrong
	{
		error_msg = "The form could not be processed due to the following errors:\n\n" + 
					error_msg;
		alert(error_msg);
		return false;
	}
	
	// We got through the whole list and found nothing wrong
	
	return true;
}

//   General purpose functions:

function get_date_obj(date_text)
{
	var str = new String(date_text);
	
	// date_arr[0] is the month, [1] is the date, [2] is the year
	var date_arr = str.split("/");
	var the_month = parseInt(date_arr[0]);
	var the_date = parseInt(date_arr[1]);
	var the_year = parseInt(date_arr[2]);

	var the_parsed_date = new Date();
	the_parsed_date.setHours(0);
	the_parsed_date.setMinutes(0);
	the_parsed_date.setSeconds(0);
	the_parsed_date.setMilliseconds(0);

	the_parsed_date.setFullYear(the_year);
	the_parsed_date.setMonth(the_month - 1);
	the_parsed_date.setDate(the_date);
	
	return the_parsed_date;
}


//-------------------------------- errorList -----------------------------------//

// errorList is the variable that builds the error message we send to the user.
// In the end, we check the value of errorList, and validate() returns false 
// if we've added any errors.  errorList is declared globally here so that it the isvalid
// functions can add to it.  It's initialized in validate() however, since we want to
// clear out the errorList every time the user tries to submit the form.

var errorList;



//<!-- Original:  Mike Welagen (welagenm@hotmail.com) -->

//<!-- This script and many more are available free online at -->
//<!-- The JavaScript Source!! http://javascript.internet.com -->

//<!-- Begin

function checkdate(objName) {
	var datefield = objName;
	
	if (chkdate(objName) == false) {
		datefield.select();
		alert("That date is invalid.  Please try again.");
		datefield.focus();
		return false;
	
	}else {
		return true;
	}
}

function chkdate(objName) {
var strDatestyle = "US"; //United States date style
//var strDatestyle = "EU";  //European date style
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;
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);
   }
}
if (strYear.length == 2) {
strYear = '20' + strYear;
}
// US style
if (strDatestyle == "US") {
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;
}
}
}
if (strDatestyle == "US") {
datefield.value = strMonthArray[intMonth-1] + " " + intday+" " + strYear;
}
else {
datefield.value = intday + " " + strMonthArray[intMonth-1] + " " + strYear;
}
return true;
}
function LeapYear(intYear) {
if (intYear % 100 == 0) {
if (intYear % 400 == 0) { return true; }
}
else {
if ((intYear % 4) == 0) { return true; }
}
return false;
}
function doDateCheck(from, to) {
if (Date.parse(from.value) <= Date.parse(to.value)) {
alert("The dates are valid.");
}
else {
if (from.value == "" || to.value == "") 
alert("Both dates must be entered.");
else 
alert("To date must occur after the from date.");
   }
}















function convert_date(field1)
{
var fLength = field1.value.length; // Length of supplied field in characters.
var divider_values = new Array ('-','.','/',' ',':','_',','); // Array to hold permitted date seperators.  Add in '\' value
var array_elements = 7; // Number of elements in the array - divider_values.
var day1 = new String(null); // day value holder
var month1 = new String(null); // month value holder
var year1 = new String(null); // year value holder
var divider1 = null; // divider holder
var outdate1 = null; // formatted date to send back to calling field holder
var counter1 = 0; // counter for divider looping 
var divider_holder = new Array ('0','0','0'); // array to hold positions of dividers in dates
var s = String(field1.value); // supplied date value variable

//If field is empty do nothing
if ( fLength == 0 ) {
   return true;
}

// Deal with today or now
if ( field1.value.toUpperCase() == 'NOW' || field1.value.toUpperCase() == 'TODAY' ) {
   
	var newDate1 = new Date();
	
  		if (navigator.appName == "Netscape") {
    		var myYear1 = newDate1.getYear() + 1900;
  		}
  		else {
  			var myYear1 =newDate1.getYear();
  		}
  
	var myMonth1 = newDate1.getMonth()+1;  
	var myDay1 = newDate1.getDate();
	field1.value = myDay1 + "/" + myMonth1 + "/" + myYear1;
	fLength = field1.value.length;//re-evaluate string length.
	s = String(field1.value)//re-evaluate the string value.
}

//Check the date is the required length
if ( fLength != 0 && (fLength < 6 || fLength > 11) ) {
	invalid_date(field1);
	return false;   
	}

// Find position and type of divider in the date
for ( var i=0; i<3; i++ ) {
	for ( var x=0; x<array_elements; x++ ) {
		if ( s.indexOf(divider_values[x], counter1) != -1 ) {
			divider1 = divider_values[x];
			divider_holder[i] = s.indexOf(divider_values[x], counter1);
		   //alert(i + " divider1 = " + divider_holder[i]);
			counter1 = divider_holder[i] + 1;
			//alert(i + " counter1 = " + counter1);
			break;
		}
 	}
 }

// if element 2 is not 0 then more than 2 dividers have been found so date is invalid.
if ( divider_holder[2] != 0 ) {
   invalid_date(field1);
	return false;   
}

// See if no dividers are present in the date string.
if ( divider_holder[0] == 0 && divider_holder[1] == 0 ) { 
   
		//continue processing
		if ( fLength == 6 ) {//ddmmyy
   		day1 = field1.value.substring(0,2);
     		month1 = field1.value.substring(2,4);
  			year1 = field1.value.substring(4,6);
  			if ( (year1 = validate_year(year1)) == false ) {
   			invalid_date(field1);
				return false; 
				}
			}
			
		else if ( fLength == 7 ) {//ddmmmy
   		day1 = field1.value.substring(0,2);
  			month1 = field1.value.substring(2,5);
  			year1 = field1.value.substring(5,7);
  			if ( (month1 = convert_month(month1)) == false ) {
   			invalid_date(field1);
				return false; 
				}
  			if ( (year1 = validate_year(year1)) == false ) {
   			invalid_date(field1);
				return false; 
				}
			}
		else if ( fLength == 8 ) {//ddmmyyyy
   		day1 = field1.value.substring(0,2);
  			month1 = field1.value.substring(2,4);
  			year1 = field1.value.substring(4,8);
			}
		else if ( fLength == 9 ) {//ddmmmyyyy
   		day1 = field1.value.substring(0,2);
  			month1 = field1.value.substring(2,5);
  			year1 = field1.value.substring(5,9);
  			if ( (month1 = convert_month(month1)) == false ) {
   			invalid_date(field1);
				return false; 
				}
			}
		
		if ( (outdate1 = validate_date(day1,month1,year1)) == false ) {
   		alert("The value " + field1.value + " is not a vaild date.\n\r" +  
			"Please enter a valid date in the format dd/mm/yyyy");
			field1.focus();
			field1.select();
			return false;
			}

		field1.value = outdate1;
		return true;// All OK
		}
		
// 2 dividers are present so continue to process	
if ( divider_holder[0] != 0 && divider_holder[1] != 0 ) { 	
  	day1 = field1.value.substring(0, divider_holder[0]);
  	month1 = field1.value.substring(divider_holder[0] + 1, divider_holder[1]);
  	//alert(month1);
  	year1 = field1.value.substring(divider_holder[1] + 1, field1.value.length);
	}

if ( isNaN(day1) && isNaN(year1) ) { // Check day and year are numeric
	invalid_date(field1);
	return false;  
   }

if ( day1.length == 1 ) { //Make d day dd
   day1 = '0' + day1;  
}

if ( month1.length == 1 ) {//Make m month mm
	month1 = '0' + month1;   
}

if ( year1.length == 2 ) {//Make yy year yyyy
   if ( (year1 = validate_year(year1)) == false ) {
   	invalid_date(field1);
		return false;  
		}
}

if ( month1.length == 3 || month1.length == 4 ) {//Make mmm month mm
   if ( (month1 = convert_month(month1)) == false) {
   	alert("month1" + month1);
   	invalid_date(field1);
   	return false;  
   }
}

// Date components are OK
if ( (day1.length == 2 || month1.length == 2 || year1.length == 4) == false) {
   invalid_date(field1);
   return false;
}

//Validate the date
if ( (outdate1 = validate_date(day1, month1, year1)) == false ) {
   alert("The value " + field1.value + " is not a vaild date.\n\r" +  
	"Please enter a valid date in the format dd/mm/yyyy");
	field1.focus();
	field1.select();
	return false;
}

// Redisplay the date in dd/mm/yyyy format
field1.value = outdate1;
return true;//All is well

}
/******************************************************************
   convert_month()
   
   Function to convert mmm month to mm month 
   
   Called by convert_date()    
   
   Author: Simon Kneafsey 
   Date Created: 4/9/00
   Email: simonkneafsey@hotmail.com
   WebSite: www.simonkneafsey.co.uk
   
   Notes:P lease feel free to use/edit this script.  If you do please keep my comments and details 
   intact and notify me via a quick Email to the address above.  Enjoy!
*******************************************************************/
function convert_month(monthIn) {

var month_values = new Array ("JAN","FEB","MAR","APR","MAY","JUN","JUL","AUG","SEP","OCT","NOV","DEC");

monthIn = monthIn.toUpperCase(); 

if ( monthIn.length == 3 ) {
	for ( var i=0; i<12; i++ ) 
		{
   	if ( monthIn == month_values[i] ) 
   		{
			monthIn = i + 1;
			if ( i != 10 && i != 11 && i != 12 ) 
				{
   			monthIn = '0' + monthIn;
				}
			return monthIn;
			}
		}
	}

else if ( monthIn.length == 4 && monthIn == 'SEPT') {
   monthIn = '09';
   return monthIn;
	}
	
else {
	return false;
	} 
}
/******************************************************************
   invalid_date()
   
   If an entered date is deemed to be invalid, invali
   d_date() is called to display a warning message to
   the user.  Also returns focus to the date  in que
   stion and selects the date for edit.
        
   Called by convert_date()
   
   Author: Simon Kneafsey
   Date Created: 4/9/00
   Email: simonkneafsey@hotmail.com
   WebSite: www.simonkneafsey.co.uk
   
   Notes: Please feel free to use/edit this script.  If you do please keep my comments and details 
   intact and notify me via a quick Email to the address above.  Enjoy!
*******************************************************************/
function invalid_date(inField) 
{
alert("The value " + inField.value + " is not in a vaild date format.\n\r" + 
        "Please enter date in the format dd/mm/yyyy");
inField.focus();
inField.select();
return true   
}
/******************************************************************
   validate_date()
   
   Validates date output from convert_date().  Checks
   day is valid for month, leap years, month !> 12,.
   
   Author: Simon Kneafsey
   Date Created: 4/9/00
   Email: simonkneafsey@hotmail.com
   WebSite: www.simonkneafsey.co.uk
   
   Notes: Please feel free to use/edit this script.  If you do please keep my comments and details 
   intact and notify me via a quick Email to the address above.  Enjoy!
*******************************************************************/
function validate_date(day2, month2, year2)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   
{                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       
var DayArray = new Array(31,28,31,30,31,30,31,31,30,31,30,31);                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          
var MonthArray = new Array("01","02","03","04","05","06","07","08","09","10","11","12");                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      
var inpDate = day2 + month2 + year2;                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                
var filter=/^[0-9]{2}[0-9]{2}[0-9]{4}$/;                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          

//Check ddmmyyyy date supplied
if (! filter.test(inpDate))                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           
  {                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          
  return false;                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    
  }                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     
/* Check Valid Month */                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               
filter=/01|02|03|04|05|06|07|08|09|10|11|12/ ;                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        
if (! filter.test(month2))                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         
  {                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               
  return false;                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      
  }                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         
/* Check For Leap Year */                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            
var N = Number(year2);                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   
if ( ( N%4==0 && N%100 !=0 ) || ( N%400==0 ) )                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        
  	{                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     
   DayArray[1]=29;                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     
  	}                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       
/* Check for valid days for month */                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  
for(var ctr=0; ctr<=11; ctr++)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        
  	{                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     
   if (MonthArray[ctr]==month2)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      
   	{                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    
      if (day2<= DayArray[ctr] && day2 >0 )                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       
        {
        inpDate = day2 + '/' + month2 + '/' + year2;       
        return inpDate;
        }                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 
      else                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             
        {                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          
        return false;                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                
        }                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                
   	}                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   
   }                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            
}
/******************************************************************
   validate_year()
   
   converts yy years to yyyy
   Uses a hinge date of 10
        < 10 = 20yy 
        => 10 = 19yy.
         
   Called by convert_date() before validate_date().
      
   Author: Simon Kneafsey 
   Date Created: 4/9/00
   Email: simonkneafsey@hotmail.com
   WebSite: www.simonkneafsey.co.uk
   
   Notes: Please feel free to use/edit this script.  If you do please keep my comments and details 
   intact and notify me via a quick Email to the address above.  Enjoy!
*******************************************************************/
function validate_year(inYear) 
{
if ( inYear < 10 ) 
	{
   inYear = "20" + inYear;
   return inYear;
	}
else if ( inYear >= 10 )
	{
   inYear = "19" + inYear;
   return inYear;
	}
else 
	{
	return false;
	}   
}





// validates if a user has selected at least one option
//alert(editForm.elements[i].name + " - " + editForm.elements[i].value);
function validate_checkbox(frm){

	var isChecked = false;
	
	var editForm = frm;


	for (var i = 0; i < editForm.elements.length; i++) {
		if (editForm.elements[i].name.indexOf("checkbox") == 0  ) {	
			if(editForm.elements[i].checked == true){
				isChecked = true;
			}
		}
	}

	if(isChecked == false){
		errorList.Add("checked", "" + "Please select one area of interest\n");
	
	}
	
	return isChecked;

}

function setCurrDate(formEl) {
	var today = new Date();
	var thisMonth = today.getMonth();
	var thisDate = today.getDate();
	var thisYear = today.getFullYear();
	var i = 0;
		
	for (i = 0; i < formEl[0].length; i++) {
		if ( (thisMonth + 1) == formEl[0][i].value) {
			formEl[0].selectedIndex = i;
		}
	}
	for (i = 0; i < formEl[1].length; i++) {
		if (thisDate == formEl[1][i].value) {
			formEl[1].selectedIndex = i;
		}
	}
	for (i = 0; i < formEl[2].length; i++) {
		if (thisYear == formEl[2][i].value) {
			formEl[2].selectedIndex = i;
		}
	}
}

function setDate(formEl, dt) {
	var today = new Date(dt);
	var thisMonth = today.getMonth();
	var thisDate = today.getDate();
	var thisYear = today.getFullYear();
	var i = 0;
		
	for (i = 0; i < formEl[0].length; i++) {
		if ( (thisMonth + 1) == formEl[0][i].value) {
			formEl[0].selectedIndex = i;
		}
	}
	for (i = 0; i < formEl[1].length; i++) {
		if (thisDate == formEl[1][i].value) {
			formEl[1].selectedIndex = i;
		}
	}
	for (i = 0; i < formEl[2].length; i++) {
		if (thisYear == formEl[2][i].value) {
			formEl[2].selectedIndex = i;
		}
	}
}


function setMonth(formEl, dt){
	var thisMonth = dt;

	var i = 0;

	for (i = 0; i < formEl[0].length; i++) { 
		if ( (thisMonth ) == formEl[0][i].value) {
			formEl[0].selectedIndex = i;
		}
	}

}


function setTime(formEl, dt) {
	var today = new Date(dt);
	var thisHour = today.getHours();
	var thisMinute = today.getMinutes();

	var i = 0;
		
	for (i = 0; i < formEl[0].length; i++) {
		if ( (thisHour) == formEl[0][i].value) {
			formEl[0].selectedIndex = i;
		}
	}
	for (i = 0; i < formEl[1].length; i++) {
		if (thisMinute == formEl[1][i].value) {
			formEl[1].selectedIndex = i;
		}
	}

}


function ProcessQueryString(frm, elm, qstring){

	var myDoc = eval("document." + frm + "." + elm);
	myDoc.value = qstring;

	var myFrm = eval("document." + frm);
	myFrm.submit();

}


function SetElement(frm, elm, qstring){
	var myDoc = eval("document." + frm + "." + elm);
	myDoc.value = qstring;

}


function MakeDate(formEl){
	var tmp = "";
	
	if (formEl[2].value != "" && formEl[0].value != "" && formEl[1].value != ""){
		tmp = formEl[2].value + "/" + formEl[0].value + "/" + formEl[1].value;
	}
	
	return tmp;
	
}

function MakeTime(formEl){
	var tmp = "";
	
	var the_hour = parseInt(formEl[0].value);
	var the_minute = parseInt(formEl[1].value);

	if (  ! isNaN(the_hour) && ! isNaN(the_minute) ) {
		tmp = "1899-12-30 " + formEl[0].value + ":" + formEl[1].value;

	}else if (! isNaN(the_hour) && isNaN(the_minute)){
		tmp = "1899-12-30 " + formEl[0].value + ":00";

	}
		

	return tmp;

}