var emailEnter=false;

function trimTxt(s) {
while (s.substring(0,1) == ' ') {
s = s.substring(1,s.length);
}
while (s.substring(s.length-1,s.length) == ' ') {
s = s.substring(0,s.length-1);
}
return s;
}

function getCSRFCookie() {

var name=cookiename+'_csrfchk';
var start = document.cookie.indexOf(name + "=");
var len = start + name.length +1;
if ( ( !start ) && ( name != document.cookie.substring( 0, name.length ) ) ) return '';
if ( start == -1 ) return '';
var end = document.cookie.indexOf( ";", len );
if ( end == -1 ) end = document.cookie.length;
return unescape( document.cookie.substring( len, end ) );
}

function emptyEmail(){
if(!emailEnter) {
document.forms['regform'].elements['user_email'].value='';
emailEnter=true;
}
}

function startProgress(disableBtn, btnName, formName, progressBlockName){
if(disableBtn){
document.forms[formName].elements[btnName].enabled=false;
document.forms[formName].elements[btnName].style.display='none';
}
document.getElementById(progressBlockName).style.display='block';
}

function endProgress(enableBtn, btnName, formName, progressBlockName){
if(enableBtn){
document.forms[formName].elements[btnName].enabled=true;
document.forms[formName].elements[btnName].style.display='block';
}
document.getElementById(progressBlockName).style.display='none';
}

function startRegister(){
document.getElementById('progressEnd').style.display='none';
document.getElementById('regBlock').style.display='block';

document.forms['regform'].elements['regBtn'].enabled=true;
document.forms['regform'].elements['regBtn'].style.display='block';
document.getElementById('progressMsg').style.display='none';
}

function registerValidate(){

/*
var emailPattern = /^[a-zA-Z0-9._-]+[a-zA-Z0-9_-]@[a-zA-Z0-9.-]+[.][a-zA-Z]{2,4}$/;
var chk=emailPattern.test(document.forms['regform'].elements['user_email'].value); 

if(!chk) {
alert(l_registerAlert);
document.forms['regform'].elements['user_email'].focus();
return false;
}
else{
*/
startProgress(true, 'regBtn', 'regform', 'progressMsg');
document.forms['regform'].elements['csrfchk'].value=getCSRFCookie();
document.forms['regform'].submit();
/*
}
*/

}

function progressEndWrite(content){
parent.document.getElementById('progressEnd').style.display='block';
parent.document.getElementById('progressEnd').innerHTML=content;
}

function loginValidate(){
if(trimTxt(document.forms['loginform'].elements['username'].value)=='' || trimTxt(document.forms['loginform'].elements['user_password'].value)==''){
alert(l_enterLoginFields);
document.forms['loginform'].elements['username'].focus();
return;
}
else{
document.forms['loginform'].elements['csrfchk'].value=getCSRFCookie();
startProgress(true, 'loginBtn', 'loginform', 'progressLoginMsg');
document.forms['loginform'].submit();
}
}

function submitForm(action){
document.forms['chooseForm'].elements['action'].value=action;
document.forms['chooseForm'].submit();
}

function confirmEmail(){
var ccode=trimTxt(document.forms['confirmform'].elements['confirm_code'].value);
if(ccode=='') {
alert(l_settingsConfirmAlert);
return;
}
else{
document.forms['confirmform'].elements['csrfchk'].value=getCSRFCookie();
startProgress(true, 'saveBtn', 'confirmform', 'progressMsg');
document.forms['confirmform'].submit();
}

}

function checkdate (m, d, y) {
    // Returns true(1) if it is a valid date in gregorian calendar  
    // 
    // version: 1101.3117
    // discuss at: http://phpjs.org/functions/checkdate    // +   original by: Kevin van Zonneveld (http://kevin.vanzonneveld.net)
    // +   improved by: Pyerre
    // +   improved by: Theriault
    // *     example 1: checkdate(12, 31, 2000);
    // *     returns 1: true    // *     example 2: checkdate(2, 29, 2001);
    // *     returns 2: false
    // *     example 3: checkdate(3, 31, 2008);
    // *     returns 3: true
    // *     example 4: checkdate(1, 390, 2000);    // *     returns 4: false
return m > 0 && m < 13 && y > 999 && y < 32768 && d > 0 && d <= (new Date(y, m, 0)).getDate();
}

function strictLength() {
var fName='subject';
var fMax=maxSubjectLength;

M = document.forms['addform'].elements[fName].value.length;
MV = fMax - M;

if(MV<0) {
MV=0;
}

if (M > fMax) {
document.forms['addform'].elements[fName].value = document.forms['addform'].elements[fName].value.substring(0, fMax);
MV=fMax;
}

document.forms['addform'].elements['ictr'].value=MV;

}

function makeCisBold(cis_id){
var calframe = document.getElementById('calframe');

Array.from(
calframe.contentWindow.document.querySelectorAll('[id^="cis_"]'))
.forEach(function (x) { 
calframe.contentWindow.document.getElementById(x.id).style.fontWeight='normal';
}
); 

calframe.contentWindow.document.getElementById(cis_id).style.fontWeight='bold';
}

function updateDate(day, month, year, id){

makeCisBold(id);

document.getElementById('day').value=day;
document.getElementById('month').value=month;
document.getElementById('year').value=year;
//document.getElementById('dia').value=day;
//document.getElementById('mes').value=month;
//document.getElementById('ano').value=year;

//document.forms['addform'].elements['day'].value=day;
//document.forms['addform'].elements['month'].value=month;
//document.forms['addform'].elements['year'].value=year;
//document.forms['calform'].elements['dia'].value=day;
//document.forms['calform'].elements['mes'].value=month;
//document.forms['calform'].elements['ano'].value=year;

//document.getElementById('calform').submit();
}

function help(helpText){
alert(helpText);
return;
}

function updateCalendar(){
var ret=true;

var day=parseInt(document.getElementById('day').value);
var month=parseInt(document.getElementById('month').value);
var year=trimTxt(document.getElementById('year').value);

if(year=='') ret=false;
else {
year=parseInt(year);
//alert(day + ' ' + month + ' ' + year);
if(!checkdate(month, day, year) || year<1903) ret=false;
}

if(!ret){
alert(l_setDateError);
document.getElementById('year').focus();
return;
}
else{
document.forms['calform'].elements['dia'].value=day;
document.forms['calform'].elements['mes'].value=month;
document.forms['calform'].elements['ano'].value=year;
document.forms['calform'].submit();
//alert('ok');
}

}

function checkDateMonth(day, month){

if( (month==2 && (day > 29)) || ((month==4 || month==6 || month==9 || month==11) && day > 30) ) {
return false;
}
else return true;

}

function addReminder(){

err=1;

var day=document.forms['addform'].elements['day'].value;
var month=document.forms['addform'].elements['month'].value;
var year=document.forms['addform'].elements['year'].value;
var subject=document.forms['addform'].elements['subject'].value;

if(trimTxt(subject)=='' || subject.length>254) {
alert(l_fillSubject);
document.forms['addform'].elements['subject'].focus();
err=0;
}

if(err==1 && !checkDateMonth(day, month)){
alert(l_fillDate);
document.forms['addform'].elements['day'].focus();
err=0;
}

if(err==1 && trimTxt(year)!='' && !checkdate(month, day, year)) {
alert(l_fillDate);
document.forms['addform'].elements['year'].focus();
err=0;
}

if(err==0) return;
else{
startProgress(true, 'saveBtn', 'addform', 'progressMsg');
document.forms['addform'].elements['csrfchk'].value=getCSRFCookie();
document.forms['addform'].submit();
}

}

function saveSettings(uLngth, pwdLngth){

var err=1;
var username=trimTxt(document.forms['settingsform'].elements['username'].value);
var pass=trimTxt(document.forms['settingsform'].elements['user_password'].value);
var email=trimTxt(document.forms['settingsform'].elements['user_email'].value);
var smsmail=trimTxt(document.forms['settingsform'].elements['user_smsmail'].value);
var emailPattern = /^[a-zA-Z0-9._-]+[a-zA-Z0-9_-]@[a-zA-Z0-9.-]+[.][a-zA-Z]{2,4}$/;
var alphaPattern=/^[a-zA-Z0-9._@-]+$/;

if(!emailPattern.test(email)){
alert(l_registerAlert);
document.forms['settingsform'].elements['user_email'].focus();
return;
}

if(username!=email){

if(err==1 && (username=='' || !alphaPattern.test(username) || username.length < uLngth )) {
err=0;
alert(l_usernameError);
document.forms['settingsform'].elements['username'].focus();
}

}

if(err==1 && (pass=='' || !alphaPattern.test(pass) || pass.length < pwdLngth)) {
err=0;
alert(l_passwordError);
document.forms['settingsform'].elements['user_password'].focus();
}

if(err==1 && smsmail!=''){
if(!emailPattern.test(smsmail)) {
err=0;
alert(l_smsmailError);
document.forms['settingsform'].elements['user_smsmail'].focus();
}
}

if(err==0) return;
else{
startProgress(true, 'saveBtn', 'settingsform', 'progressMsg');
document.forms['settingsform'].elements['csrfchk'].value=getCSRFCookie();
document.forms['settingsform'].submit();
}

}

function handleEnter(e, formName) {
var keynum;
// IE
if(window.event) keynum=e.keyCode;
// Netscape/Firefox/Opera
else if(e.which) keynum = e.which;
if(keynum==13) {
if(formName=='loginform') loginValidate();
}
return keynum;
}

function deleteEvent(event){

if(confirm(l_reallyDelete)){

//document['img'+event].src=site_url+'/img/progress.gif';

document.getElementById('img'+event).src=site_url+'/img/progress.gif';

document.forms['delform'].elements['event_id'].value=event;
document.forms['delform'].elements['csrfchk'].value=getCSRFCookie();
document.forms['delform'].submit();

}
else return;

}

function hideEvent(event){
document.getElementById('tb'+event).style.display='none';
document.getElementById('tbc'+event).style.display='none';
}

function deleteAccount(){
if(confirm(l_deleteAccountWarning)){
top.location=site_url+'/index.php?action=selfdelete';
}
else return;
}

function retrievePass(){
var ccode=document.forms['passform'].elements['email'].value;
if(ccode=='') {
alert(l_registerAlert);
return;
}
else{
document.forms['passform'].elements['csrfchk'].value=getCSRFCookie();
startProgress(true, 'saveBtn', 'passform', 'progressMsg');
document.forms['passform'].submit();
}

}