//////////////////////////////////////////////////////////////////////////////////////
//////																			//////
//////							FORM CHECKING									//////
//////																			//////
//////////////////////////////////////////////////////////////////////////////////////


//checkUpdateContents
	function checkLoginForm(formObj) 
	{
		var alert_message = ""; 

		if (isEmpty(formObj.usrLogin.value))
		{
			alert_message += " User Login.\n";
		}


		if (isEmpty(formObj.usrPassword.value)) 
		{
			alert_message += " User Password.\n";
		}
		
		if (alert_message) { 
			alert ("Your form is incomplete.\n" +
				   "You must supply the following information:\n" + 
				   alert_message )
			return false;
		} else { 
			return true;
		}
	}


//check to date is sfter from date on Calendar maintenance forms
	function checkCalendarDate(formObj) {  
			
			if (!isEmpty(formObj.calendarDateTo.value))
			{	
				datefrom=formObj.calendarDateFrom.value;
				dateto=formObj.calendarDateTo.value;
				
				var datefrom1 = datefrom.substr(3,2) +"/" + datefrom.substr(0,2)+"/" + datefrom.substr(6,4);
				var dateto1 = dateto.substr(3,2) +"/" + dateto.substr(0,2)+"/" + dateto.substr(6,4);
				
				datefrom2 = new Date(datefrom1);
				dateto2 = new Date(dateto1);
	
				 if(dateto2 < datefrom2)
				 {
					alert ("Please supply a valid To date.\n");
					return false;
				 }
				 else
				 {
					return true;
				 }
			}
			else
			{
				return true;
			}
		   
		}		

//checkFormComplete
	function checkFormComplete(formObj) 
	{  
		var alert_message = "";
		if (formObj.inputFields.value == undefined) {
			var inpFieldsArray = formObj.inputFields;
		}
		else {
			var inpFieldsArray = new Array(formObj.inputFields);
		}
		

		for ( var i = 0; i < inpFieldsArray.length ; i++ )
		{
			if (inpFieldsArray[i].value != "") {
			
				var fieldName = inpFieldsArray[i].value.split('|');
				var inputName = fieldName[0];
				var fieldIsRequired = fieldName[1];
				var fieldTitle = fieldName[2];
				var fieldValidationType = fieldName[3];
	
				if (fieldIsRequired == "required")
				{
					alert_message += runValidation( formObj, inputName, fieldTitle, fieldValidationType );
				}
				else if (fieldIsRequired == "optional")
				{
					if (eval("!isEmpty(formObj." + inputName + ".value)")) 
					{
						alert_message += runValidation( formObj, inputName, fieldTitle, fieldValidationType );
					}
				}
			}
		}
		
		
		if (alert_message) { 
			alert ("Your form is incomplete or you have supplied information in an incorrect format.\n" +
				   "You must supply the following information:\n" + 
				   alert_message )
			return false;
		} else { 
			return true;
		}
	}
	


	function runValidation( formObj, inputName, fieldTitle, fieldValidationType )
	{
		alert_message = "";
		
		switch (fieldValidationType)
		{
			case 'list':
				alert_message += checkListComplete(formObj,inputName, fieldTitle);
				break;
			case 'text':
				alert_message += checkTextBoxComplete(formObj,inputName, fieldTitle);
				break;
			case 'int':
				alert_message += checkIntegerComplete(formObj,inputName, fieldTitle);
				break;
			case 'decimal':
				alert_message += checkDecimalComplete(formObj,inputName, fieldTitle);
				break;
			case 'textarea':
				alert_message += checkTextAreaComplete(formObj,inputName, fieldTitle);
				break;
			case 'email':
				alert_message += checkEmailComplete(formObj,inputName, fieldTitle);
				break;
			case 'url':
				alert_message += checkUrlComplete(formObj,inputName, fieldTitle);
				break;
			case 'date':
				alert_message += checkDateComplete(formObj,inputName, fieldTitle);
				break;
			case 'ccnumber':
				alert_message += checkCreditCardNumberComplete(formObj,inputName, fieldTitle);
				break;
			case 'ccdate':
				alert_message += checkCreditCardDateComplete(formObj,inputName, fieldTitle);
				break;
			case 'radio':
				alert_message += checkRadioComplete(formObj,inputName, fieldTitle);
				break;
		}
		
		return alert_message;
	}
	
	function checkRadioComplete(formObj, inputName, fieldTitle)
	{
		var alert_message = ""; 

		if (eval("!isRadioSelected(formObj." + inputName + ")")) 
		{
			alert_message = alert_message + "   " + fieldTitle + "\n";
		}

		return alert_message;
	}
	
	function checkListComplete(formObj, inputName, fieldTitle)
	{
		var alert_message = ""; 

		if (eval("!isSelected(formObj." + inputName + ".value)")) 
		{
			alert_message = alert_message + "   " + fieldTitle + "\n";
		}

		return alert_message;
	}

	function checkCreditCardNumberComplete(formObj, inputName, fieldTitle)
	{
		var alert_message = ""; 

		if (eval("!isValidCCNumber(formObj." + inputName + ".value)")) 
		{
			alert_message = alert_message + "   " + fieldTitle + "\n";
		}

		return alert_message;
	}

	function checkCreditCardDateComplete(formObj, inputName, fieldTitle)
	{
		var alert_message = ""; 
		
		var tempDate = eval('formObj.' + inputName + '.value');
		var dateArray = tempDate.split('/');
		
		if ( dateArray.length == 2 )
		{
			if (!isValidCCDate(dateArray[0], dateArray[1])) 
			{
				alert_message = alert_message + "   " + fieldTitle + "\n";
			}
		}
		else
		{
			alert_message = alert_message + "   " + fieldTitle + "\n";
		}

		return alert_message;
	}

	function checkIntegerComplete(formObj, inputName, fieldTitle)
	{
		var alert_message = ""; 

		if (eval("!isInteger(formObj." + inputName + ".value)")) 
		{
			alert_message = alert_message + "   " + fieldTitle + "\n";
		}

		return alert_message;
	}

	function checkUrlComplete(formObj, inputName, fieldTitle)
	{
		var alert_message = ""; 

		if (eval("!isValidURL(formObj." + inputName + ".value)")) 
		{
			alert_message = alert_message + "   " + fieldTitle + "\n";
		}

		return alert_message;
	}

	function checkDecimalComplete(formObj, inputName, fieldTitle)
	{
		var alert_message = ""; 

		if (eval("!isDecimalNumber(formObj." + inputName + ".value)")) 
		{
			alert_message = alert_message + "   " + fieldTitle + "\n";
		}

		return alert_message;
	}

	function checkTextBoxComplete(formObj, inputName, fieldTitle)
	{
		var alert_message = ""; 

		if (eval("isEmpty(formObj." + inputName + ".value)")) 
		{
			alert_message = alert_message + "   " + fieldTitle + "\n";
		}

		return alert_message;
	}

	function checkDateComplete(formObj, inputName, fieldTitle)
	{
		var alert_message = "";

		if (eval("!isValidDate(formObj." + inputName + ".value)")) 
		{
			alert_message = alert_message + "   Valid " + fieldTitle + "\n";
		}

		return alert_message;
	}

	function checkEmailComplete(formObj, inputName, fieldTitle)
	{
		var alert_message = ""; 

		if (eval("!isValidEmail(formObj." + inputName + ".value)")) 
		{
			alert_message = alert_message + "   Valid " + fieldTitle + "\n";
		}

		return alert_message;
	}

	function checkTextAreaComplete(formObj, inputName, fieldTitle)
	{
		var alert_message = ""; 

		if (eval("isEmpty(formObj." + inputName + ".value)")) 
		{
			alert_message = alert_message + "   " + fieldTitle + "\n";
		}

		return alert_message;
	}
	
	function doAddToShoppingCart(prdID,catID,action)
	{
		document.orderForm.prdQuantity.value = document.getElementById('qty_' + prdID).value;
		document.orderForm.catID.value = catID;
		document.orderForm.prdID.value = prdID;
		document.orderForm.action.value = action;

		if ( isInteger( document.getElementById('qty_' + prdID).value ) && document.getElementById('qty_' + prdID).value != 0 )
		{
			document.orderForm.submit();
		}
		else
		{
			alert('Please provide valid quantity for this product.');
		}
	}	
	
// getUsrAge
	function getUsrAge(usrDOB, ageCutoffDate) {  
		var usrAge = "";
		if (isValidDate(usrDOB) && isValidDate(ageCutoffDate)) {
			
			tempArray 	= usrDOB.split("/");
			dobDay		= tempArray[0];
			dobMonth	= tempArray[1] - 1;
			dobYear		= tempArray[2];
			
			var thisDOB	= new Date(dobYear, dobMonth, dobDay);
			
			tempArray 	= ageCutoffDate.split("/");
			dobDay		= tempArray[0];
			dobMonth	= tempArray[1] - 1;
			dobYear		= tempArray[2];
			
			var thisAgeCutoffDate	= new Date(dobYear, dobMonth, dobDay);
			
			usrAge	= thisAgeCutoffDate.getFullYear() - thisDOB.getFullYear();
			
			if (thisDOB.getMonth() > thisAgeCutoffDate.getMonth()) {
				usrAge = usrAge - 1;
			
			} else if ((thisDOB.getMonth() == thisAgeCutoffDate.getMonth()) && (thisDOB.getDate() > thisAgeCutoffDate.getDate())) {
				usrAge = usrAge - 1;
			}
		}
		
		return usrAge;
	}
	
	

// Returns "true" if "str" contains only alpha characters [a-z, A-Z] (no whitespace etc.).
	function isAlpha(strValue) {
		return (! strValue.search (/^([a-zA-Z]+)$/));
	}

// isDecimalNumber
	function isDecimalNumber (passedVal) {
		if(passedVal == "") {
			return false;
		}
			
		for (z=0; z<passedVal.length; z++) {
			if (passedVal.charAt(z) == ".") {
			}
			else if (passedVal.charAt(z) == "-") {
			}
			else if (passedVal.charAt(z) < "0") {
				return false;
			}
			else if (passedVal.charAt(z) > "9") {
				return false;
			}
		}
		return true;
	}

// isEmpty
	function isEmpty (strValue) {
		return (! strValue.replace (/^(\s*)/, "", strValue));
	}
	
// isInteger
	function isInteger (passedVal) {
		if(passedVal == "") {
			return false;
		}
			
		for (z=0; z<passedVal.length; z++) {
			if (passedVal.charAt(z) < "0") {
				return false;
			}
			else if (passedVal.charAt(z) > "9") {
				return false;
			}
		}
		return true;
	}
	
// isRadioSelected
	function isRadioSelected (radioObject) {
		eventOption = -1;
	
		if (radioObject[0]) {			
			for ( z=0; z < radioObject.length; z++) {
				if (radioObject[z].checked) {
					eventOption = z;
				}
			}
		} 
		else {
			if (radioObject.checked) { eventOption = 1; }
		}
			
		if(eventOption == -1) {
			return false;
		} else {
			return true;
		}
	}
	
	
// getRadioSelected
	function getRadioSelected (radioObject) {
		eventOption = -1;
	
		if (radioObject[0]) {			
			for ( z=0; z < radioObject.length; z++) {
				if (radioObject[z].checked) {
					eventOption = z;
				}
			}
		} 
		else {
			if (radioObject.checked) { eventOption = 1; }
		}
			
		return eventOption;
	}
	
	
// isSelected
	function isSelected (strValue) {
		if (strValue == "0" || strValue == "")
			return false;
		else
			return true;
	}
	
	

// Checks the date input for a valid format.
// This code accepts the date formats: DD/MM/YYYY or DD-MM-YYYY
// To alter the format checked for, change the datePat (date pattern) -
//    d{2} requires 2 digits, d{1,2} requires either 1 or 2 digits etc.
//    \/|- requires / or - as a separator etc.
//
// Created (16 Oct 2000) Raymond Woo
	function isValidDate (strValue) {
		var datePat = /^(\d{2})(\/)(\d{2})\2(\d{4})$/; // Change this to check for a different format
		var matchArray = strValue.match(datePat); // is the format ok?
		if (matchArray == null) { return false;	}
		day = matchArray[1]; month = matchArray[3]; year = matchArray[4];
		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 isleap = (year % 4 == 0 && (year % 100 != 0 || year % 400 == 0));
			if (day>29 || (day==29 && !isleap)) { return false; }
		}
		return true;  // date is valid
	}
	
// isValidEmail
	function isValidEmail (emailStr) {
		
		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 z=1;z<=4;z++) {
				if (IPArray[z]>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;
	}
	
	
// isValidImageType
	function isValidImageType (strValue) {
		var imageTypesArray = new Array();
		
		imageTypesArray[0] = "gif";
		imageTypesArray[1] = "jpg";
		imageTypesArray[2] = "jpeg";
		
		
		var stringArray = strValue.split(".");
		fileType = stringArray[stringArray.length - 1];
		
		for (z = 0; z < imageTypesArray.length; z++) {
			if(imageTypesArray[z].toLowerCase() == fileType.toLowerCase()) {
				return true;
			}
		}
		return false;
	}
	
	
// isValidJpgImageType
	function isValidJpgImageType (strValue) {
		var imageTypesArray = new Array();
		
		imageTypesArray[0] = "jpg";
		imageTypesArray[1] = "jpeg";
		
		
		var stringArray = strValue.split(".");
		fileType = stringArray[stringArray.length - 1];
		
		for (z = 0; z < imageTypesArray.length; z++) {
			if(imageTypesArray[z].toLowerCase() == fileType.toLowerCase()) {
				return true;
			}
		}
		return false;
	}	


	
	
// Returns "true" if the "strValue" is in a valid 12 hour time format, eg. HH:MM or H:MM 
// P or PM or A or AM are optional at the end, and are case insensitive.
//
// Created (16 Oct 2000) Raymond Woo
// Modified (27 Nov 2000) Raymond Woo "AM" matching corrected. Doh.
	function isValidTime ( strValue ) {
		var objRegExp = /^(0{0,1}[1-9]|1[0-2]):[0-5]\d\s*([A]|[P])M*$/i;
		return objRegExp.test( strValue );
	}
	
	
// isValidTiming (h:mm:ss or m:ss)
	function isValidTiming( strValue ) {
		var objRegExp = /^(0{0,1}[0-9]:|[0-9][0-9]:|)(0{0,1}[0-5]|)[0-9]:[0-5][0-9]*$/i;
		return objRegExp.test( strValue );
	}
	
	
// isValidURL
	function isValidURL (strValue) {
		
		// CHECK IF HAS VALID URL PREFIX
		var urlPrefixArray = new Array();
		urlPrefixArray[0] = "file";
		urlPrefixArray[1] = "ftp";
		urlPrefixArray[2] = "gopher";
		urlPrefixArray[3] = "http";
		urlPrefixArray[4] = "https";
		urlPrefixArray[5] = "telnet";
		urlPrefixArray[6] = "wais";
		urlPrefixArray[7] = "mailto";
		urlPrefixArray[8] = "news";
		
		
		// check URL is long enough
		if (strValue.length <= 7 ) {
			return false;
		}
		
		
		hasPrefix = false;
		stringAddress = "";
		var stringArray = strValue.split(":");
		stringPrefix = stringArray[0];
		
		
		if (stringArray.length >= 2) stringAddress = stringArray[1];
		
		
		var addressArray = stringAddress.split("//");
		if (addressArray.length >= 2) stringAddress = addressArray[1];
		
		var addressArray = stringAddress.split("/");
		stringAddress = addressArray[0];
		
		var addressArray = stringAddress.split("?");
		stringAddress = addressArray[0];
		
		for (z = 0; z < urlPrefixArray.length; z++) {
			if(urlPrefixArray[z] == stringPrefix) {
				hasPrefix = true;
			}
		}
		
		// IF NO VALID PREFIX - RETURN FALSE
		if (!hasPrefix) return false;
		
		
		// are regular expressions supported?
	    var supported = 0;
	    if (window.RegExp) {
	        var tempStr = "a";
	        var tempReg = new RegExp(tempStr);
	        if (tempReg.test(tempStr)) supported = 1;
	    }
		
		// check if right format
	    if (supported) {
			var r1 = new RegExp(/^[a-z0-9\-]+(\.[a-z0-9\-]+)*(\.[a-z]{2,3})+$/);
			
			return (r1.test(stringAddress));
			
	    } else {
			return true;
		}
	}
	
	
// isValidYear
	function isValidYear ( strValue ) {
		var objRegExp = /^(\d{4})$/;
		var objRegExp2 = /^(\d{4})-(\d{4})$/;
		
		if (strValue.match( objRegExp )) {
			return true;
		} else if (strValue.match( objRegExp2 )) {
			return true;
		} else {
			return false;
		}
	}
	
	
// Eliminates everything apart from digits (0 through 9) from a string.
//
// Created (16 Oct 2000) Raymond Woo
	function reduceToDigits (strValue) {
		return (strValue.replace (/([^0-9])/g, "", strValue));
	}



// popupWindow
	function popupWindow(popupLocation, windowName, popupWidth, popupHeight, statusBarOn) {
		var heightspeed = 15; 	// vertical speed
		var widthspeed 	= 15;  	// horizontal speed
		var leftdist 	= (screen.width - popupWidth) / 2;    	// distance to left edge of window
		var topdist 	= (screen.height - popupHeight) / 2;   	// distance to top edge of window
		if (document.all) {
			if (statusBarOn) {
				var popUpWin = window.open("", windowName, "left=" + leftdist + ",top=" + topdist + ",width=4,height=4,scrollbars=yes,resizable=yes,status=yes,menubar=no");
			} else { 
				var popUpWin = window.open("", windowName, "left=" + leftdist + ",top=" + topdist + ",width=4,height=4,scrollbars=yes,resizable=no,status=no,menubar=no");
			}
			for (sizeheight = 1; sizeheight < popupHeight; sizeheight += heightspeed) {
				popUpWin.resizeTo("1", sizeheight);
			}
			for (sizewidth = 1; sizewidth < popupWidth; sizewidth += widthspeed) {
				popUpWin.resizeTo(sizewidth, sizeheight);
			}	
			popUpWin.resizeTo(popupWidth, popupHeight);
			popUpWin.location = popupLocation;
		} else {
			var popUpWin = window.open(popupLocation, windowName, "left=" + leftdist + ",top=" + topdist + ",width=" + popupWidth + ",height=" + popupHeight + ",scrollbars=yes,resizable=yes");
		}
	} 

	
//Window pop-up script//
function openWindow(url){

    h = (window.screen.availHeight - 50);

    w = (window.screen.availWidth - 20); 

    

    window.open(url, 'ePASS', 'width=' + w + ',height=' + h + ',screenX=5,screenY=5,left=5,top=5,resizable=yes,menubar=no,scrollbars=yes,titlebar=no,toolbar=no,status=yes');

}

// Delate Confirmation requiring YES to be typed in popup box //
function confirmDelete() {
	var response = window.prompt("WARNING: Are you sure you wish to delete this item and all sub items? Please type 'YES' to confirm","Type 'YES' in capitals here");
	
	if (response == "YES") {
		return true;
	}
	else {
		return false;
	}

}