function openCopyright(URL) {
copyrightWindow=window.open(URL,"copyrightwindow","toolbar=no,width=735,height=145,status=no,scrollbars=yes,resize=yes,menubar=no");
}
function openPrivacy(URL) {
privacyWindow=window.open(URL,"privacywindow","toolbar=no,width=650,height=420,status=no,scrollbars=yes,resize=yes,menubar=no");
}
function openScreen(URL) {
crsWindow=window.open(URL,"crswindow","toolbar=no,width=1260,height=700,status=no,scrollbars=yes,resize=yes,menubar=no");
}
function openReceipt(URL) {
page2Window=window.open(URL,"page2window","toolbar=no,width=700,height=520,status=no,scrollbars=yes,resize=yes,menubar=no");
}

//condense the blank check with a function (check for null blank)
function check_for_nb(field,fieldname,phrase) {
if (!phrase) var phrase = "The " + fieldname + " field appears to be blank, this must be entered before proceeding";
if ((field === null) || (field.value == '') || typeof(field.value) === 'undefined') {
alert(phrase);
try {
field.focus();
}
catch (e) {
}
return false;
}
return true;
}

function toggleLayer( whichLayer , force) {
  //options for force are 'hide'/'show'
  if (!force) var force = '';
  
  var elem, vis;
  if( document.getElementById ) // this is the way the standards work
    elem = document.getElementById( whichLayer );
  else if( document.all ) // this is the way old msie versions work
      elem = document.all[whichLayer];
  else if( document.layers ) // this is the way nn4 works
    elem = document.layers[whichLayer];
  vis = elem.style;
  // if the style.display value is blank we try to figure it out here
  if (vis.display=='' && elem.offsetWidth != undefined && elem.offsetHeight != undefined)
    vis.display = (elem.offsetWidth!=0&&elem.offsetHeight!=0)?'block':'none';
  vis.display = (vis.display==''||vis.display=='block')?'none':'block';
  if (force == 'show') vis.display='block';
  if (force == 'hide') vis.display='none';
}


function subProceed(message) {
	if (confirm(message)) {
		return true;
	}
	else {
		return false; 
	}
}

function ValidatePwd(pw1,pw2) {

var minLength = 8; // Minimum length
// check for a value in both fields.
if (pw1.value == '' || pw2.value == '') {
alert('Please enter your password twice.');
return false;
}

// check for minimum length
if (pw1.value.length < minLength) {
alert('Your password must be at least ' + minLength + ' characters long. Try again.');
return false;
}
var empty_string = /^\s*$/; //create RegExp object for re-use

//check for whitespaces
ws = new RegExp(/\s/g);
if (ws.test(pw1.value)) {
alert("Sorry, spaces are not allowed in the password fields.");
return false;
}

if (pw1.value != pw2.value) {
pw1.value = '';
pw2.value = '';
alert ("Sorry but your passwords did not match, please re-enter them and try again.");
return false;
}

return true;
}
function CheckAccept(lang) {
var instr = document.getElementById('chkInstructions');
var terms = document.getElementById('chkTerms');
if (instr.checked == false || terms.checked == false) {
if (lang == 'e') alert('You must tick the checkboxes stating you have read the instructions and agree to the terms and conditions');
if (lang == 'i') alert('Ní mór duit na ticbhoscaí a thiceáil chun a thaispeáint gur léigh tú na treoracha agus go n-aontaíonn tú leis na téarmaí agus leis na coinníollacha');
instr.focus();
return false;
}
//all is well
return true;
}
function CheckAccept_pe(lang) {
var instr = document.getElementById('chkInstructions');
var eligible = document.getElementById('chkEligible');
if (instr.checked == false || eligible.checked == false) {
if (lang == 'e') alert('You must tick the checkboxes stating you have read the instructions and the additional information');
if (lang == 'i') alert('Ní mór duit na ticbhoscaí a thiceáil chun a thaispeáint gur léigh tú na treoracha agus the additional information');
instr.focus();
return false;
}
//all is well
return true;
}

function ValidatePPS(ppsn) {
var pps = ppsn;
if (pps != null) {
	if(pps.length !=8) {
		return false;
	}
	else {
		var end = pps.substring(7,8);
		var end = end.toUpperCase().charCodeAt(0);
		var end = (end-64);
		var number=pps.substring(0,7);
		var multiply=8;
		var temp=0;
		for(i=0;i<7;i++) {
			temp=temp+(number.charAt(i))*multiply;		
			multiply=multiply-1;			
		}
		var mod = 23;
		var result=temp%mod;
		if(result==end) {
			return true;
		}
		else {
			return false;
		}
	}
}
return true;
}

//short email function checker using filtering
function CheckEmail(str){
if ((str === null) || (str=="")) var email = "";
else var email = str.value;

var filter=/^(([^<>()[\]\\.,;:\s@""]+(\.[^<>()[\]\\.,;:\s@""]+)*)|("".+""))@((\[[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\])|(([a-zA-Z\-0-9]+\.)+[a-zA-Z]{2,}))$/i
if (filter.test(email)){
return true;
}
else{
alert("Please input a valid email address!");
str.focus();
return false;
}
return true;
}

function CheckResetForm() {
var email = document.getElementById('txtEmail');
if (!CheckEmail(email)) {
return false;
}

var passworda = document.getElementById('txtPassword');
var passwordb = document.getElementById('txtConfirmPassword');
if (!ValidatePwd(passworda,passwordb)) {
	return false;
}
return true;
}

function CheckLoginForm(ln) {
var email = document.getElementById('txtLoginEmail');
if ((email === null) || (email.value == '')) {
if (ln == 'i') { alert("Is cosúil nach bhfuil aon seoladh ríomhphoist, ní mór é seo a iontráil sula dtéann tú ar aghaidh"); }
else { alert("The email address appears to be blank, this must be entered before proceeding"); }
email.focus();
return false;
}

if(!CheckEmail(document.getElementById('txtLoginEmail'))){
return false;
}

var pass = document.getElementById('txtLoginPass');
if ((pass === null) || (pass.value == '')) {
if (ln == 'i') { alert("Is cosúil nach bhfuil aon phasfhocal iontráilte, ní mór é seo a iontráil sula dtéann tú ar aghaidh"); }
else  { alert("The password appears to be blank, this must be entered before proceeding"); }
pass.focus();
return false;
}

if (pass.value.length < 8) {
if (ln == 'i') { alert('Ní mór go mbeadh 8 gcarachtar ar a laghad i do phasfhocal. Triail arís é.'); }
else { alert('Your password must be at least 8 characters long. Try again.'); }
return false;
}
return true;
}


function update_strength(input_field,output_field,ln) {
var input_field = document.getElementById(input_field);
var output_field = document.getElementById(output_field);
var input_str = input_field.value;
var input_length = input_str.length;
var strength = 0;
var number_re = new RegExp("[0-9]");
if(number_re.test(input_str)) {
	strength++;
}
non_alpha_re = new RegExp("[^A-Za-z0-9]");
if(non_alpha_re.test(input_str)) {
	strength++;
}
upper_alpha_re = new RegExp("[A-Z]");
if(upper_alpha_re.test(input_str)) {	
	strength++;
}
if(input_length >= 8) {
	strength++;
}

if (ln == 'i') {
	var strength_str = "&nbsp;Láidreacht an phasfhocail" + ': ';
	if(strength <= 1) {
		strength_str = strength_str + '<strong style = "color:#EE4444;">' + "Lag" + '</strong>';
	}
	else if(strength <= 2) {
		strength_str = strength_str + '<strong style = "color:#FF9C21;"> '+ "Idir eatarthu" + '</strong>';
	}
	else {
	strength_str = strength_str + '<strong style = "color:#94C65A;">' + "Láidir" + '</strong>';
	}
	if(input_str.length < 8) {
		strength_str = '<strong style = "color:#FFC700;">' + "&nbsp;Róghearr" + '</strong>';
	}
}
else {
	var strength_str = "&nbsp;Password strength" + ': ';
	if(strength <= 1) {
		strength_str = strength_str + '<strong style = "color:#EE4444;">' + "Weak" + '</strong>';
	}
	else if(strength <= 2) {
		strength_str = strength_str + '<strong style = "color:#FF9C21;"> '+ "Medium" + '</strong>';
	}
	else {
	strength_str = strength_str + '<strong style = "color:#94C65A;">' + "Strong" + '</strong>';
	}
	if(input_str.length < 8) {
		strength_str = '<strong style = "color:#FFC700;">' + "&nbsp;Too short" + '</strong>';
	}
}
output_field.innerHTML = strength_str;
}

function UpperC(control_id) {
var elm = document.getElementById(control_id).value;
document.getElementById(control_id).value = elm.toLowerCase();
}

/*
The following functions are ajax and used to check email without
navigating away from the current page.
*/
function toggle_email(userid) {
    var XMLHttpFactories =[function () {return new XMLHttpRequest()},function () {return new ActiveXObject("Msxml2.XMLHTTP")},function () {return new ActiveXObject("Msxml3.XMLHTTP")},function () {return new ActiveXObject("Msxml4.XMLHTTP")},function () {return new ActiveXObject("Msxml5.XMLHTTP")},function () {return new ActiveXObject("Msxml6.XMLHTTP")},function () {return new ActiveXObject("Microsoft.XMLHTTP")}];
    for (var i = 0; i < XMLHttpFactories.length; i++){
        try {http = XMLHttpFactories[i]();}
        catch (e){continue;}
        break;
    }

    handle = document.getElementById(userid);
    var url = 'ajax_email.php?';
    if(handle.value.length > 0) {
        var fullurl = url + 'do=check_email_exists&email=' + encodeURIComponent(handle.value);
        http.open("GET", fullurl, true);
        http.send(null);
        http.onreadystatechange = statechange_email;	
    }else{
        document.getElementById('email_exists').innerHTML = '';
    }
}

function statechange_email() {
    if (http.readyState == 4) {
       	var xmlObj = http.responseXML;
	var html = xmlObj.getElementsByTagName('result').item(0).firstChild;
	if (html === null) {
	//do nothing
	document.getElementById('email_exists').innerHTML = '';
	}
	else {
	document.getElementById('email_exists').innerHTML = html.data;
	}
    }
}
/*
end of ajax code
*/