function arrayMoveIndex(arr, fromIndex, toIndex)
{
	var element = arr[fromIndex];
	arr.splice(fromIndex, 1);
	arr.splice(toIndex, 0, element);
}

Element.prototype.remove = function()
{
	this.parentElement.removeChild(this);
}

NodeList.prototype.remove = HTMLCollection.prototype.remove = function()
{
	for(var i = this.length - 1; i >= 0; i--) {
		if(this[i] && this[i].parentElement) {
			this[i].parentElement.removeChild(this[i]);
		}
	}
}


function AJAXGet(getURL, callbackFunction)
{
    $.get(getURL, function(response) {
        if (callbackFunction) {
            if (typeof response === 'string' || response instanceof String) {
                callbackFunction($.parseJSON(response));
                return;
            }
            callbackFunction(response);
        }
    });
}

function AJAXPost(postURL, dataString, callbackFunction)
{
    $.post(postURL, dataString, function(response) {
        if (callbackFunction) {
            if (typeof response === 'string' || response instanceof String) {
                callbackFunction($.parseJSON(response));
                return;
            }
            callbackFunction(response);
        }
    });

}

var additionalServiceID = 1;
function addAdditionalServiceRow()
{
	/* Create "additionalServiceItem" and append to "additionalServiceRows" container */

		// #additionalServiceRows
		var additionalServiceRows = document.getElementById('additionalServiceRows');

		// div #additionalServiceItem .inputSection .additionalServiceRow
		var inputSection = document.createElement('div');
		inputSection.className = 'inputSection additionalServiceRow';
		inputSection.id = 'additionalServiceItem'+ additionalServiceID;
		additionalServiceRows.appendChild(inputSection);

		// label .topLabel
		var topLabel = document.createElement('label');
		topLabel.setAttribute('for', '');
		topLabel.className = 'topLabel';
		topLabel.style.display = 'inline-block';
		topLabel.innerHTML = 'Toode';
		inputSection.appendChild(topLabel);

		// span .removeRowButton .icon-cross
		var removeRowButton = document.createElement('span');
		removeRowButton.className = 'removeRowButton icon-cross';
		removeRowButton.setAttribute('title', 'Eemalda see toode');
		removeRowButton.setAttribute('onClick', 'removeAdditionalServiceRow(additionalServiceID = '+ additionalServiceID +');');
		inputSection.appendChild(removeRowButton);

		// div
		var div = document.createElement('div');
		inputSection.appendChild(div);

		// div .tareRowInput .tareRowInputLarge
		var additionalServiceRowFirstRow = document.createElement('div');
		additionalServiceRowFirstRow.className = 'tareRowInput tareRowInputLarge';
		div.appendChild(additionalServiceRowFirstRow);

		// select #additionalService .?
		var additionalService = document.createElement('select');
		additionalService.id = 'additionalService'+ additionalServiceID;
		additionalService.name = 'additionalService'+ additionalServiceID;
		additionalService.setAttribute('service-field','1');
		//additionalService.title = 'TODO';
		additionalServiceRowFirstRow.appendChild(additionalService);
		$(additionalService).select2({
			placeholder: 'Lisateenused',
			language: 'en'
		});

		// select #additionalService option(s)
		var option = document.createElement('option');
		additionalService.appendChild(option);

        var dateTime = null;
        var date = jQuery('#emptying_date').val();
        if (date) {
            var dateTime = Date.parse(date);
        }

		for(var key in additionalServices){
            var is_active = true;
            if (dateTime && additionalServices[key].end_date) {
                var dateTime2 = Date.parse(additionalServices[key].end_date);

                if (dateTime > dateTime2) {
                    is_active = false;
                }
            }
            if (is_active) {
                var option = document.createElement('option');
                option.value = additionalServices[key].additional_service_id;
                option.setAttribute('end-date', additionalServices[key].end_date);
                option.innerHTML = additionalServices[key].name;
                additionalService.appendChild(option);
            }
		}

		// div .tareRowInput
		var tareRowInput = document.createElement('div');
		tareRowInput.className = 'tareRowInput';
		div.appendChild(tareRowInput);

		// input #additionalServiceQuantity
		var additionalServiceQuantity = document.createElement('input');
		additionalServiceQuantity.setAttribute('type', 'text');
		additionalServiceQuantity.id = 'additionalServiceQuantity'+ additionalServiceID;
		additionalServiceQuantity.name = 'additionalServiceQuantity'+ additionalServiceID;
		additionalServiceQuantity.placeholder = 'Kogus';
		//additionalServiceQuantity.title = 'TODO';
		tareRowInput.appendChild(additionalServiceQuantity);
		additionalServiceQuantity.addEventListener('input', function(e)
		{
			// Get source value
			var source = e.target;
			var value = source.value;

			// Check if the source value is a whole number
			if(value != '' && !isNaN(value) && value.indexOf('e') === -1 && value.indexOf('.') === -1){
				return true;
			}else{
				if(value != ''){
					alert("Palun sisesta täisarv");
				}
				source.value = '';
				return false;
			}
		});

		// span .inputError
		var inputError = document.createElement('span');
		inputError.className = 'inputError';
		inputError.style.display = 'inline-block';
		inputSection.appendChild(inputError);

	// Increment "additionalServiceID"
	additionalServiceID++;
}

function noExchangeTareInfo()
{
	alert('Me ei paku sellele taarale asendustaarat');
}

var ownTareID = 1;
function addOwnTareRow(garbage_id, item_type_id)
{
	/* Create "ownTareItem" and append to "ownTareRows" container */

		// #ownTareRows
		var ownTareRows = document.getElementById('ownTareRows');

		// div #ownTareItem .inputSection .tareRow
		var inputSection = document.createElement('div');
		inputSection.className = 'inputSection tareRow';
		inputSection.id = 'ownTareItem'+ ownTareID;
		ownTareRows.appendChild(inputSection);

		// label .topLabel
		var topLabel = document.createElement('label');
		topLabel.setAttribute('for', 'ownGarbage'+ ownTareID);
		topLabel.className = 'topLabel';
		topLabel.style.display = 'inline-block';
		topLabel.innerHTML = 'Toode';
		inputSection.appendChild(topLabel);

		// span .removeRowButton .icon-cross
		var removeRowButton = document.createElement('span');
		removeRowButton.className = 'removeRowButton icon-cross';
		removeRowButton.setAttribute('title', 'Eemalda see toode');
		removeRowButton.setAttribute('onClick', 'removeOwnTareRow(ownTareID = '+ ownTareID +');');
		inputSection.appendChild(removeRowButton);

		// div
		var div = document.createElement('div');
		inputSection.appendChild(div);

		// div .tareRowFirstRow
		var tareRowFirstRow = document.createElement('div');
		tareRowFirstRow.className = 'tareRowFirstRow';
		div.appendChild(tareRowFirstRow);

		// select #ownGarbage
		var ownGarbage = document.createElement('select');
		ownGarbage.id = 'ownGarbage'+ ownTareID;
		ownGarbage.className = 'ownGarbage';
		ownGarbage.name = 'ownGarbage'+ ownTareID;
		ownGarbage.title = 'Jäätmete nimetus vastavalt Keskkonnaministri 14.12.2015. a määrus nr 70 „Jäätmete liigitamise kord ja jäätmenimistu” Lisa 1';
		tareRowFirstRow.appendChild(ownGarbage);
		$(ownGarbage).select2({
			placeholder: 'Jäätmete nimetus',
			language: 'en'
		});

		// select #ownGarbage option(s)
		var option = document.createElement('option');
		ownGarbage.appendChild(option);

		for(var key in garbage){
			var option = document.createElement('option');
			option.value = garbage[key].garbage_id;
			option.innerHTML = garbage[key].name;
			if(garbage[key].garbage_sku !== undefined && garbage[key].garbage_sku != ''){
				option.innerHTML += ' ('+ garbage[key].garbage_sku +')';
			}
			if(garbage_id !== undefined && garbage_id == garbage[key].garbage_id){
				option.selected = true;
			}
			ownGarbage.appendChild(option);
		}

		// div
		var div = document.createElement('div');
		inputSection.appendChild(div);

		// div .tareRowInput .tareRowInputLarge
		var tareRowInput = document.createElement('div');
		tareRowInput.className = 'tareRowInput tareRowInputLarge';
		div.appendChild(tareRowInput);

		// select #ownTare .tare
		var ownTare = document.createElement('select');
		ownTare.id = 'ownTare'+ ownTareID;
		ownTare.name = 'ownTare'+ ownTareID;
		ownTare.className = 'tare';
		ownTare.title = 'Infot kogumisvahendi liigi kohta leiab kodulehelt: http://epler-lorenz.ee/konteinerid-2';
		tareRowInput.appendChild(ownTare);
		$(ownTare).select2({
			placeholder: 'Pakendi tüüp',
			language: 'en'
		})
        .on('item_type_change', function(e) {
            // Get selected option
            var selectedOption = e.target.options[e.target.selectedIndex];
            var transportTareNeeded = selectedOption.getAttribute('is_transport_tare_needed');

            if (jQuery('#waste_transportation2').is(':checked')) {
                transportTareNeeded = 'false';
            }

            if (transportTareNeeded == 'true') {
                if ($(this).closest('.tareRow').find('.transport-tare-needed').length == 0) {
                    $(this).closest('.tareRow').append('<div style="color: red;" class="transport-tare-needed">Sellele kogumisvahendile lisandub transporditaara päeva rendi maksumus</div>');
                }
            }
            else {
                $(this).closest('.tareRow').find('.transport-tare-needed').remove();
            }
        })
		.on('change', function(e)
		{
            $(this).trigger('item_type_change');
			// Get selected option
			var selectedOption = e.target.options[e.target.selectedIndex];

			// Determine "ownTareID"
			var ownTareID = e.target.id;
			ownTareID = parseInt(ownTareID.replace('ownTare', ''));

			// Get reference to the tare and exchange tare selectors
			var tare = document.getElementById('ownTareQuantity'+ ownTareID);
			var exchangeTare = document.getElementById('ownTareExchangeQuantity'+ ownTareID);

			// Determine if exchange tare is available
			var exchangeTareAvailable = selectedOption.getAttribute('el_exchange_tare_available');
			var is_transport_tare_needed = selectedOption.getAttribute('is_transport_tare_needed');

			// Disable the exchange tare selector, if exchange tare is not available for the selected tare
			if(exchangeTareAvailable !== undefined && exchangeTareAvailable === 'false')
			{
				// Disable the exchange tare selector
				exchangeTare.disabled = true;

				// Set the exchange tare amount to "0"
				$(exchangeTare).prop('selectedIndex', 0).change();

				// Indicate that exchange tare is not available
                if (is_transport_tare_needed == 'false') {
				    noExchangeTareInfo();
                }
				$(exchangeTare).parent().find('.select2-container')[0].addEventListener('click', noExchangeTareInfo);

			}
			// Disable the exchange tare selector, when selecting the "no tare" tare option
			else if(selectedOption.innerHTML == '0 m3 - ilma mahutita')
			{
				// Disable the tare and exchange tare selectors
				tare.disabled = true;
				exchangeTare.disabled = true;

				// Set tare amount to "1" and deselect the exchange tare amount
				$(tare).val('1');
				$(exchangeTare).prop('selectedIndex', 0).change();

				// Indicate that exchange tare is not available
				noExchangeTareInfo();
				$(exchangeTare).parent().find('.select2-container')[0].addEventListener('click', noExchangeTareInfo);
			}
			// Reset the tare and exchange tare selectors to their default states
			else
			{
				// Enable the tare and exchange tare selectors
				tare.disabled = false;
				exchangeTare.disabled = false;

				// Set the tare and exchange tare amount to default
				//$(tare).val('');
				//$(exchangeTare).prop('selectedIndex', 0).change();

				// Remove indication of unavailable exchange tare
				$(exchangeTare).parent().find('.select2-container')[0].removeEventListener('click', noExchangeTareInfo);
			}
		});

		// select #ownTare option(s)
		var option = document.createElement('option');
		ownTare.appendChild(option);

		for(var key in tares){
			var option = document.createElement('option');
			option.value = tares[key].item_type_id;
			option.innerHTML = tares[key].name;
			if(item_type_id !== undefined && item_type_id == tares[key].item_type_id){
				option.selected = true;
			}
			option.setAttribute('el_exchange_tare_available', tares[key].el_exchange_tare_available);
			option.setAttribute('is_transport_tare_needed', tares[key].is_transport_tare_needed);
			ownTare.appendChild(option);
		}

		// div .tareRowInput
		var tareRowInput = document.createElement('div');
		tareRowInput.className = 'tareRowInput';
		div.appendChild(tareRowInput);

		// input #ownTareQuantity
		var ownTareQuantity = document.createElement('input');
		ownTareQuantity.setAttribute('type', 'text');
		ownTareQuantity.id = 'ownTareQuantity'+ ownTareID;
		ownTareQuantity.name = 'ownTareQuantity'+ ownTareID;
		ownTareQuantity.placeholder = 'Pakendi kogus, tk';
		ownTareQuantity.title = 'Mitut kogumisvahendit (konteinerit, vaati) soovib ettevõte ära anda';
		tareRowInput.appendChild(ownTareQuantity);

		// input #ownTareQuantity eventListener
		ownTareQuantity.addEventListener('input', function(e)
		{
			// Get source value
			var source = e.target;
			var value = source.value;

			// Allow a maximum of 50 tares
			if(value != '' && !isNaN(value) && value.indexOf('e') === -1 && value.indexOf('.') === -1){ // If the source value is a whole number
				if(value > 50){
					source.value = '50';
					value = '50';
				}
			}

			// Determine "ownTareID"
			var ownTareID = e.target.id;
			ownTareID = parseInt(ownTareID.replace('ownTareQuantity', ''));

			// Get target
			var target = document.getElementById('ownTareExchangeQuantity'+ ownTareID);

			// Reset target options
			target.innerHTML = '';

			// Add new options to target
			if(value != '' && !isNaN(value) && value.indexOf('e') === -1 && value.indexOf('.') === -1){ // If the source value is a whole number
				var option = document.createElement('option');
				target.appendChild(option);
				var i = 0;
				while(i <= value){
					var option = document.createElement('option');
					option.value = i;
					option.innerHTML = i;
					target.appendChild(option);
					i++;
				}
			}else{ // If the source value is NOT a whole number
				if(value != ''){
					alert("Palun sisesta täisarv");
				}
				source.value = '';
				return false;
			}
		});

		// div .tareRowInput
		var tareRowInput = document.createElement('div');
		tareRowInput.className = 'tareRowInput';
		div.appendChild(tareRowInput);

		// select #ownTareExchangeQuantity
		var ownTareExchangeQuantity = document.createElement('select');
		ownTareExchangeQuantity.id = 'ownTareExchangeQuantity'+ ownTareID;
		ownTareExchangeQuantity.name = 'ownTareExchangeQuantity'+ ownTareID;
		ownTareExchangeQuantity.title = 'Mitmele kogumisvahendile (konteiner, vaat) soovib ettevõte saada vastu vahetustaarat';
		tareRowInput.appendChild(ownTareExchangeQuantity);
		$(ownTareExchangeQuantity).select2({
			placeholder: 'Vahetustaara kogus, tk',
			language: 'en'
		});

		// span .inputError
		var inputError = document.createElement('span');
		inputError.className = 'inputError';
		inputError.style.display = 'inline-block';
		inputSection.appendChild(inputError);
	if (item_type_id) {
        $(ownTare).trigger('item_type_change');
    }
	// Increment "ownTareID"
	ownTareID++;
}

var tmpTareID = 1;
function addTmpTareRow(garbage_id, item_type_id)
{
	/* Create "ownTareItem" and append to "ownTareRows" container */

		// #ownTareRows
		var ownTareRows = document.getElementById('tmpTareRows');

		// div #ownTareItem .inputSection .tareRow
		var inputSection = document.createElement('div');
		inputSection.className = 'inputSection tareRow';
		inputSection.id = 'tmpTareItem'+ tmpTareID;
		ownTareRows.appendChild(inputSection);

		// label .topLabel
		var topLabel = document.createElement('label');
		topLabel.setAttribute('for', 'tmpGarbage'+ tmpTareID);
		topLabel.className = 'topLabel';
		topLabel.style.display = 'inline-block';
		topLabel.innerHTML = 'Toode';
		inputSection.appendChild(topLabel);

		// span .removeRowButton .icon-cross
		var removeRowButton = document.createElement('span');
		removeRowButton.className = 'removeRowButton icon-cross';
		removeRowButton.setAttribute('title', 'Eemalda see toode');
		removeRowButton.setAttribute('onClick', 'removeTmpTareRow(tmpTareID = '+ tmpTareID +');');
		inputSection.appendChild(removeRowButton);

		// div
		var div = document.createElement('div');
		inputSection.appendChild(div);

		// div .tareRowFirstRow
		var tareRowFirstRow = document.createElement('div');
		tareRowFirstRow.className = 'tareRowFirstRow';
		div.appendChild(tareRowFirstRow);

		// select #ownGarbage
		var ownGarbage = document.createElement('select');
		ownGarbage.id = 'tmpGarbage'+ tmpTareID;
		ownGarbage.className = 'tmpGarbage';
		ownGarbage.name = 'tmpGarbage'+ tmpTareID;
		ownGarbage.title = 'Jäätmete nimetus vastavalt Keskkonnaministri 14.12.2015. a määrus nr 70 „Jäätmete liigitamise kord ja jäätmenimistu” Lisa 1';
		tareRowFirstRow.appendChild(ownGarbage);
		$(ownGarbage).select2({
			placeholder: 'Jäätmete nimetus',
			language: 'en'
		});

		// select #ownGarbage option(s)
		var option = document.createElement('option');
		ownGarbage.appendChild(option);

		for(var key in garbage){
			var option = document.createElement('option');
			option.value = garbage[key].garbage_id;
			option.innerHTML = garbage[key].name;
			if(garbage[key].garbage_sku !== undefined && garbage[key].garbage_sku != ''){
				option.innerHTML += ' ('+ garbage[key].garbage_sku +')';
			}
			if(garbage_id !== undefined && garbage_id == garbage[key].garbage_id){
				option.selected = true;
			}
			ownGarbage.appendChild(option);
		}

		// div
		var div = document.createElement('div');
		inputSection.appendChild(div);

		// div .tareRowInput .tareRowInputLarge
		var tareRowInput = document.createElement('div');
		tareRowInput.className = 'tareRowInput tareRowInputLarge';
		div.appendChild(tareRowInput);

		// select #ownTare .tare
		var ownTare = document.createElement('select');
		ownTare.id = 'tmpTare'+ tmpTareID;
		ownTare.name = 'tmpTare'+ tmpTareID;
		ownTare.className = 'tare';
		ownTare.title = 'Infot kogumisvahendi liigi kohta leiab kodulehelt: http://epler-lorenz.ee/konteinerid-2';
		tareRowInput.appendChild(ownTare);
		$(ownTare).select2({
			placeholder: 'Pakendi tüüp',
			language: 'en'
		});

		// select #ownTare option(s)
		var option = document.createElement('option');
		ownTare.appendChild(option);

		for(var key in tmp_tares){
			var option = document.createElement('option');
			option.value = tmp_tares[key].item_type_id;
			option.innerHTML = tmp_tares[key].item_type;
			if(item_type_id !== undefined && item_type_id == tmp_tares[key].item_type_id){
				option.selected = true;
			}
			ownTare.appendChild(option);
		}

		// div .tareRowInput
		var tareRowInput = document.createElement('div');
		tareRowInput.className = 'tareRowInput';
		div.appendChild(tareRowInput);

		// input #ownTareQuantity
		var ownTareQuantity = document.createElement('input');
		ownTareQuantity.setAttribute('type', 'text');
		ownTareQuantity.id = 'tmpTareQuantity'+ tmpTareID;
		ownTareQuantity.name = 'tmpTareQuantity'+ tmpTareID;
		ownTareQuantity.placeholder = 'Pakendi kogus, tk';
		ownTareQuantity.title = 'Mitut kogumisvahendit (konteinerit, vaati) soovib ettevõte ära anda';
		tareRowInput.appendChild(ownTareQuantity);

		// span .inputError
		var inputError = document.createElement('span');
		inputError.className = 'inputError';
		inputError.style.display = 'inline-block';
		inputSection.appendChild(inputError);

	// Increment "ownTareID"
    tmpTareID++;
}

var rentedTareID = 1;
function addRentedTareRow(garbage_id, item_type_id, selectableAmount)
{
	/* Create "rentedTareItem" and append to "rentedTareRows" container */

		// #rentedTareRows
		var rentedTareRows = document.getElementById('rentedTareRows');

		// div #rentedTareItem .inputSection .tareRow
		var inputSection = document.createElement('div');
		inputSection.className = 'inputSection tareRow';
		rentedTareRows.appendChild(inputSection);

		// label .topLabel
		var topLabel = document.createElement('label');
		topLabel.setAttribute('for', 'rentedGarbage'+ rentedTareID);
		topLabel.className = 'topLabel';
		topLabel.style.display = 'inline-block';
		topLabel.innerHTML = 'Toode';
		inputSection.appendChild(topLabel);

		// span .removeRowButton .icon-cross
		var removeRowButton = document.createElement('span');
		removeRowButton.className = 'removeRowButton icon-cross';
		removeRowButton.setAttribute('title', 'Eemalda see toode');
		removeRowButton.setAttribute('onClick', 'removeRentedTareRow(rentedTareID = '+ rentedTareID +');');
		inputSection.appendChild(removeRowButton);

		// div
		var div = document.createElement('div');
		inputSection.appendChild(div);

		// div .tareRowFirstRow
		var tareRowFirstRow = document.createElement('div');
		tareRowFirstRow.className = 'tareRowFirstRow';
		div.appendChild(tareRowFirstRow);

		// select #rentedGarbage .garbage
		var rentedGarbage = document.createElement('select');
		rentedGarbage.id = 'rentedGarbage'+ rentedTareID;
		rentedGarbage.name = 'rentedGarbage'+ rentedTareID;
		rentedGarbage.className = 'garbage';
		rentedGarbage.title = 'Jäätmete nimetus vastavalt Keskkonnaministri 14.12.2015. a määrus nr 70 „Jäätmete liigitamise kord ja jäätmenimistu” Lisa 1';
		rentedGarbage.setAttribute('disabled', true);
		tareRowFirstRow.appendChild(rentedGarbage);
		$(rentedGarbage).select2({
			placeholder: 'Jäätmete nimetus',
			language: 'en'
		});

		// select #rentedGarbage option(s)
		var option = document.createElement('option');
		rentedGarbage.appendChild(option);

		for(var key in garbage){
			var option = document.createElement('option');
			option.value = garbage[key].garbage_id;
			option.innerHTML = garbage[key].name +' ('+ garbage[key].garbage_sku +')';
			if(garbage[key].garbage_id == garbage_id){
				option.setAttribute('selected', true);
			}
			rentedGarbage.appendChild(option);
		}

		// div
		var div = document.createElement('div');
		inputSection.appendChild(div);

		// div .tareRowInput .tareRowInputLarge
		var tareRowInput = document.createElement('div');
		tareRowInput.className = 'tareRowInput tareRowInputLarge';
		div.appendChild(tareRowInput);

		// select #rentedTare .tare
		var rentedTare = document.createElement('select');
		rentedTare.id = 'rentedTare'+ rentedTareID;
		rentedTare.name = 'rentedTare'+ rentedTareID;
		rentedTare.className = 'tare';
		rentedTare.title = 'Infot kogumisvahendi liigi kohta leiab kodulehelt: http://epler-lorenz.ee/konteinerid-2';
		rentedTare.setAttribute('disabled', true);
		tareRowInput.appendChild(rentedTare);
		$(rentedTare).select2({
			placeholder: 'Pakendi tüüp',
			language: 'en'
		});

		// select #rentedTare option(s)
		var option = document.createElement('option');
		rentedTare.appendChild(option);

		for(var key in tares){
			var option = document.createElement('option');
			option.value = tares[key].item_type_id;
			option.innerHTML = tares[key].name;
			if(tares[key].item_type_id == item_type_id){
				option.setAttribute('selected', true);
			}
			rentedTare.appendChild(option);
		}

		// div .tareRowInput
		var tareRowInput = document.createElement('div');
		tareRowInput.className = 'tareRowInput';
		div.appendChild(tareRowInput);

		// input #rentedTareQuantity
		var rentedTareQuantity = document.createElement('input');
		rentedTareQuantity.setAttribute('type', 'text');
		rentedTareQuantity.id = 'rentedTareQuantity'+ rentedTareID;
		rentedTareQuantity.name = 'rentedTareQuantity'+ rentedTareID;
		rentedTareQuantity.placeholder = 'Pakendi kogus, tk';
		rentedTareQuantity.title = 'Mitut kogumisvahendit (konteinerit, vaati) soovib ettevõte ära anda';
		tareRowInput.appendChild(rentedTareQuantity);
		rentedTareQuantity.addEventListener('input', function(e)
		{
			// Get source value
			var source = e.target;
			var value = source.value;

			// Determine "rentedTareID"
			var rentedTareID = source.id.split('Quantity')[1];

			// Get target
			var target = document.getElementById('rentedTareExchangeQuantity'+ rentedTareID);

			// Check if the source value is a whole number
			if(value != '' && !isNaN(value) && value.indexOf('e') === -1 && value.indexOf('.') === -1){
				target.value = source.value;
			}else{
				if(value != ''){
					alert("Palun sisesta täisarv");
				}
				source.value = '';
				target.value = '';
				return false;
			}

			// Ensure that the entered value is not greater than "selectableAmount"
			if(parseInt(value) > parseInt(selectableAmount)){
				alert("Vastavalt teie lepingule on maksimaalne kogumisvahendi arv, mida saate valida: " + selectableAmount);
				source.value = selectableAmount;
				target.value = selectableAmount;
			}
		});

		// div .tareRowInput
		var tareRowInput = document.createElement('div');
		tareRowInput.className = 'tareRowInput';
		div.appendChild(tareRowInput);

		// input #rentedTareExchangeQuantity
		var rentedTareExchangeQuantity = document.createElement('input');
		rentedTareExchangeQuantity.setAttribute('type', 'text');
		rentedTareExchangeQuantity.id = 'rentedTareExchangeQuantity'+ rentedTareID;
		rentedTareExchangeQuantity.name = 'rentedTareExchangeQuantity'+ rentedTareID;
		rentedTareExchangeQuantity.placeholder = 'Vahetustaara kogus, tk';
		rentedTareExchangeQuantity.title = 'Mitmele kogumisvahendile (konteiner, vaat) soovib ettevõte saada vastu vahetustaarat';
		tareRowInput.appendChild(rentedTareExchangeQuantity);
		rentedTareExchangeQuantity.addEventListener('input', function(e)
		{
			// Get source value
			var source = e.target;
			var value = source.value;

			// Determine "rentedTareID"
			var rentedTareID = source.id.split('Quantity')[1];

			// Get target
			var target = document.getElementById('rentedTareQuantity'+ rentedTareID);

			// Check if the source value is a whole number
			if(value != '' && !isNaN(value) && value.indexOf('e') === -1 && value.indexOf('.') === -1){
				//target.value = source.value;
			}else{
				if(value != ''){
					alert("Palun sisesta täisarv");
					source.value = target.value;
				}
				return false;
			}

			// Ensure that the entered value is not greater than "selectableAmount"
			if(parseInt(value) > parseInt(selectableAmount)){
				alert("Vastavalt teie lepingule on maksimaalne kogumisvahendi arv, mida saate valida: " + selectableAmount);
				source.value = selectableAmount;
			}
		});

	// Increment "rentedTareID"
	rentedTareID++;
}

var addressAutoCompleteRequest;
var addressAutoCompleteTimer;
function addressAutoComplete(e)
{
	//
	var _this = $(this);

	// Define the search term and the currently available addresses
	var searchTerm = e.target.value;
	var valid_addresses = document.getElementById('valid_addresses');

	// Do not execute this method if the search term is less than 3 characters long
	if(searchTerm.length < 3){
		return false;
	}

	// Cancel any existing timers
	if(addressAutoCompleteTimer !== undefined){
		clearTimeout(addressAutoCompleteTimer);
	}

	// Cancel any pending AJAX requests, if an option was selected from the available addresses (datalist)
	var options = valid_addresses.childNodes;
	for(var i = 0; i < options.length; i++)
	{
		if(options[i].value === searchTerm){
			if(addressAutoCompleteRequest !== undefined){
				addressAutoCompleteRequest.abort();
				return;
			}
		}
	}

	// Start a timer (1 second), then execute an AJAX GET request
	addressAutoCompleteTimer = setTimeout(function()
	{
		// Cancel any pending AJAX requests
		if(addressAutoCompleteRequest !== undefined){
			addressAutoCompleteRequest.abort();
		}

		// Perform AJAX GET request
		addressAutoCompleteRequest = $.ajax({
			type: 'GET',
			url: '/AJAX/addressAutoComplete.php?term='+ searchTerm,
			dataType: 'json',
			success: function(result)
			{
				console.log(result);
				$('#valid_addresses').empty();
				for(var i=0; i < result.length; i++)
				{
					$('#valid_addresses').append('<option value="'+ result[i].label +'"></option>');
				}
				e.target.focus();
			}
		});
	}, 300);
}

function autoFillContactInfo(el_order)
{
	// Ensure that "el_order" is an object
	if(el_order === undefined || typeof el_order !== 'object'){
		displaySystemError();
		return false;
	}

	// contact_person
	if(el_order.contact_person !== undefined){
		document.getElementById('contact_person').value = el_order.contact_person;
	}

	// contact_phone_number
	if(el_order.contact_phone_number !== undefined){
		document.getElementById('contact_phone_number').value = el_order.contact_phone_number;
	}

	// contact_email
	if(el_order.contact_email !== undefined){
		document.getElementById('contact_email').value = el_order.contact_email;
	}
}

function autoFillMostRecentOrder(contract_id, object_id)
{
	// Submit a "getELOrderMostRecent" AJAX request
	AJAXGet('AJAX/getELOrderMostRecent.php?contract_id='+ contract_id +'&object_id='+ object_id, function(result){

		if(typeof result === 'object' && result.hasOwnProperty('status')){

			// Ensure that only a single order was received
			if(result.status == 1 && typeof result.data == 'object'){

				// Define order from result data
				var el_order = result.data;

				// Fill out contact information from previous order
				autoFillContactInfo(el_order = result.data);

				// Fill out waste origin from previous order
				autoFillWasteOrigin(el_order = result.data);

                getContractService(contract_id, object_id, 'null');

				/* Add own tares from previous order */

					// Ensure that at least one previous order item exists
					if(el_order.el_order_item === undefined || el_order.el_order_item.length < 1){
						return;
					}

					// Sort order items by unique garbage and tare combinations
					var uniqueOrderItemCombinations = [];
					for(var key in el_order.el_order_item){
						var testString = el_order.el_order_item[key].order_item_has_garbage +','+ el_order.el_order_item[key].order_item_has_item_type;
						if(uniqueOrderItemCombinations.indexOf(testString) === -1){
							uniqueOrderItemCombinations.push(testString);
						}
					}

					// Empty "ownTareRows" container
					document.getElementById('ownTareRows').innerHTML = '';

					// Add unique garbage and tare combinations as individual own tare rows
					for(var key in uniqueOrderItemCombinations){
						var ids = uniqueOrderItemCombinations[key].split(',');
						addOwnTareRow(garbage_id = ids[0], item_type_id = ids[1]);
					}

			}else{
				console.log(result);
				displaySystemError();
			}

		}else{
			console.log('Error - An unexpected AJAX result was returned:');
			console.log(result);
			displaySystemError();
		}

	});
}

function autoFillTempTares(res_tares)
{
    tmp_tares = {};
    for (var i in res_tares.data) {
        tmp_tares[i] = res_tares.data[i];
    }
}

function autoFillObjects(objects)
{
	// Reset "wasteSourceContainerLogin" select options
	var wasteSourceContainerLogin = document.getElementById('wasteSourceContainerLogin');
	wasteSourceContainerLogin.innerHTML = '';

	// Generate options for "wasteSourceContainerLogin" select
	var option = document.createElement('option');
	option.value = '';
	option.innerHTML = '';
	wasteSourceContainerLogin.appendChild(option);

	for(var key in objects){
		var option = document.createElement('option');
		option.value = objects[key].object_id;
		if(objects[key].street !== undefined && objects[key].street != ''){
			option.innerHTML = objects[key].address;
		}else{
			displaySystemError();
			console.log('Unable to determine object street name');
			return false;
		}
		wasteSourceContainerLogin.appendChild(option);
	}

	// Add event listener to select
	$('#wasteSourceContainerLogin').change(function(e){
		// Get "object_id" from selected value
		var object_id = e.target.options[e.target.selectedIndex].value;

		// Apply object info to form elements
		if(object_id == ''){
			document.getElementById('waste_source_address').value = '';
		}else{

			// Add the selected object information to the hidden form fields
			for(var key in objects){
				if(objects[key].object_id == object_id){

					// waste_source_address
					var waste_source_address = document.getElementById('waste_source_address');
					if(objects[key].street !== undefined && objects[key].street != ''){
						waste_source_address.value = objects[key].street;
						if(objects[key].house_nr !== undefined && objects[key].house_nr != '' && objects[key].house_nr != null){
							waste_source_address.value += ' '+ objects[key].house_nr;
						}
						if(objects[key].city !== undefined && objects[key].city != ''){
							waste_source_address.value += ', '+ objects[key].city;
						}
					}else{
						displaySystemError();
						console.log('Unable to determine object street name');
						return false;
					}

					break;

				}
			}

			// Automatically fill most recent order
			autoFillMostRecentOrder(contract_id, object_id);

		}

	});

    $('#wasteSourceContainerLogin').select2({
        placeholder: '(Jäätmete) Lähtekoha address',
        language: 'en'
    });
    $('#wasteSourceContainerLogin').on('select2:select', function (e) {
        $('#wasteSourceContainerLogin').change();
        autoFillObjectInfo(contract_id = document.getElementById('order_belongs_to_contract').value, object_id = $('#wasteSourceContainerLogin').val());
    });
}

function autoFillObjectInfo(contract_id, object_id)
{
	// Ensure that "contract_id" and "object_id" is defined
	if(contract_id == '' || object_id == ''){
		return false;
	}

	// Submit "getObjects" AJAX request
	AJAXGet('AJAX/getObjects.php?contract_id='+ contract_id, function(result)
	{
		// Handle return results
		if(!result || typeof result !== 'object') // Error
		{
			console.log('Error - An unexpected AJAX result was returned:');
			console.log(result);
			displaySystemError();
		}
		else // Success
		{
			// Reset field "emptying_date"
			document.getElementById('emptying_date').value = '';

			//
			for(var key in result){
				if(result[key].object_id == object_id)
				{
					// waste_producer_site_address
					var waste_producer_site_address = document.getElementById('waste_producer_site_address');
					if(result[key].street !== undefined && result[key].street != ''){
						waste_producer_site_address.value = result[key].address;
					}
				}
			}
		}
	});
}

function checkFieldsByDate()
{

    var date = jQuery('#emptying_date').val();
    if (date) {
        var dateTime = Date.parse(date);

        jQuery('[service-field]').each(function() {
            var $select = jQuery(this);
            jQuery(this).find('option').each(function() {
                var end_date = jQuery(this).attr('end-date');

                if (end_date !== 'null') {

                    var dateTime2 = Date.parse(end_date);

                    if (dateTime2 < dateTime) {
                        jQuery(this).prop('disabled', true);
                        if (jQuery(this).is(':selected')) {
                            $select.val('').trigger('change');
                        }
                    }
                    else {
                        //jQuery(this).prop('disabled', false);
                    }
                }
            });

            $select.trigger('change');
        });

    }
}

function autoFillOwnerInfo()
{
	// Parse owner info from PHP session as JSON
	var ownerString = '';
    var contractsString = '';
	if(ownerString != ''){
		var ownerInfo = JSON.parse(ownerString);
	}

    if(contractsString != ''){
    var contractInfo = JSON.parse(contractsString);
    }
	if(ownerInfo === undefined){
		return false;
	}

	// Hide "wasteSourceContainer" element
	var wasteSourceContainer = document.getElementById('wasteSourceContainer');
	wasteSourceContainer.style.visibility = 'hidden';
	wasteSourceContainer.style.height = 0;

	// Reset "waste_source_address" form element
	document.getElementById('waste_source_address').value = '';

	// Show "wasteSourceContainerLogin" select element
	var wasteSourceContainerLogin = document.getElementById('wasteSourceContainerLogin');
	wasteSourceContainerLogin.style.display = 'block';

	/* Apply owner info to form elements (and disable some) */

		// waste_transferor
		var waste_transferor = document.getElementById('waste_transferor');
		if(ownerInfo.company_name !== undefined && ownerInfo.company_name != null){
			waste_transferor.value = ownerInfo.company_name;
			waste_transferor.disabled = true;
		}

		// waste_transferor_registry_code
		var waste_transferor_registry_code = document.getElementById('waste_transferor_registry_code');
		if(ownerInfo.owner_sku !== undefined && ownerInfo.owner_sku != null){
			waste_transferor_registry_code.value = ownerInfo.owner_sku;
			waste_transferor_registry_code.disabled = true;
		}

		// waste_transferor_name
		var waste_transferor_name = document.getElementById('waste_transferor_name');
		if(ownerInfo.firstname !== undefined && ownerInfo.firstname != '' && ownerInfo.firstname != null){
			waste_transferor_name.value = ownerInfo.firstname;
			if(ownerInfo.surname !== undefined && ownerInfo.surname != '' && ownerInfo.surname != null){
				waste_transferor_name.value += ' '+ ownerInfo.surname;
			}
			waste_transferor_name.disabled = true;
		}

        $('[name="order_belongs_to_contract"]').on('change', function(){

            var current_contract_id = this.value;
            var current_waste_transferor_name = '';
            var current_waste_transferor_phone_number = '';
            var current_waste_transferor_email = '';
            var current_invoice_email = '';

            if(ownerInfo.firstname !== undefined && ownerInfo.firstname != '' && ownerInfo.firstname != null){
                current_waste_transferor_name = ownerInfo.firstname;
                if(ownerInfo.surname !== undefined && ownerInfo.surname != '' && ownerInfo.surname != null){
                    current_waste_transferor_name += ' '+ ownerInfo.surname;
                }
                waste_transferor_name.disabled = true;
            }

            if( current_contract_id && current_contract_id != undefined){

                if(contractInfo != undefined && contractInfo.length > 0){

                    $.each(contractInfo, function(cc_k, cc_v){

                        if(cc_v.contract_id == current_contract_id){

                            if( cc_v.contact_first_name && cc_v.contact_last_name ){

                                current_waste_transferor_name = cc_v.contact_first_name +' '+ cc_v.contact_last_name;
                            }
                            if( cc_v.contact_phone ){

                                current_waste_transferor_phone_number = cc_v.contact_phone;
                            }
                            if( cc_v.contact_email ){

                                current_waste_transferor_email = cc_v.contact_email;
                            }
                            if( cc_v.contact_invoice_email ){

                                current_invoice_email = cc_v.contact_invoice_email;
                            }
                        }
                    });
                }
            }

            $('[name="waste_transferor_name"]').val(current_waste_transferor_name);
            $('[name="waste_transferor_phone_number"]').val(current_waste_transferor_phone_number ? current_waste_transferor_phone_number : ownerInfo.phone);
            $('[name="waste_transferor_email"]').val(current_waste_transferor_email ? current_waste_transferor_email : ownerInfo.email);
            $('[name="invoice_email"]').val(current_invoice_email ? current_invoice_email : ownerInfo.invoice_email);
        });

		// waste_transferor_address
		var waste_transferor_address = document.getElementById('waste_transferor_address');
		if(ownerInfo.full_address !== undefined && ownerInfo.full_address != '' && ownerInfo.full_address != null){
			waste_transferor_address.value = ownerInfo.full_address;
			waste_transferor_address.disabled = true;
		}else if(ownerInfo.street !== undefined && ownerInfo.street != '' && ownerInfo.street != null){
			waste_transferor_address.value = ownerInfo.street;
			if(ownerInfo.house_nr !== undefined && ownerInfo.house_nr != '' && ownerInfo.house_nr != null){
				waste_transferor_address.value += ' '+ ownerInfo.house_nr;
			}
			if(ownerInfo.flat_nr !== undefined && ownerInfo.flat_nr != '' && ownerInfo.flat_nr != null){
				waste_transferor_address.value += '-'+ ownerInfo.flat_nr;
			}
			if(ownerInfo.zipcode !== undefined && ownerInfo.zipcode != '' && ownerInfo.zipcode != null){
				waste_transferor_address.value += ', '+ ownerInfo.zipcode;
			}
			waste_transferor_address.disabled = true;
		}

		// waste_transferor_phone_number
		var waste_transferor_phone_number = document.getElementById('waste_transferor_phone_number');
		if(ownerInfo.phone !== undefined && ownerInfo.phone != '' && ownerInfo.phone != null){
			waste_transferor_phone_number.value = ownerInfo.phone;
			waste_transferor_phone_number.disabled = true;
		}

		// waste_transferor_email
		var waste_transferor_email = document.getElementById('waste_transferor_email');
		if(ownerInfo.email !== undefined && ownerInfo.email != '' && ownerInfo.email != null){
			waste_transferor_email.value = ownerInfo.email;
			waste_transferor_email.disabled = true;
		}else if(ownerInfo.email2 !== undefined && ownerInfo.email2 != '' && ownerInfo.email2 != null){
			waste_transferor_email.value = ownerInfo.email2;
			waste_transferor_email.disabled = true;
		}else if(ownerInfo.email3 !== undefined && ownerInfo.email3 != '' && ownerInfo.email3 != null){
			waste_transferor_email.value = ownerInfo.email3;
			waste_transferor_email.disabled = true;
		}

		// invoice_email
		var invoice_email = document.getElementById('invoice_email');
		if(ownerInfo.invoice_email !== undefined && ownerInfo.invoice_email != '' && ownerInfo.invoice_email != null){
			invoice_email.value = ownerInfo.invoice_email;
			invoice_email.disabled = true;
		}else if(ownerInfo.email !== undefined && ownerInfo.email != '' && ownerInfo.email != null){
			invoice_email.value = ownerInfo.email;
			invoice_email.disabled = true;
		}

		// waste_producer_company_name
		var waste_producer_company_name = document.getElementById('waste_producer_company_name');
		if(ownerInfo.company_name !== undefined && ownerInfo.company_name != '' && ownerInfo.company_name != null){
			waste_producer_company_name.value = ownerInfo.company_name;
		}

		// waste_producer_registry_code
		var waste_producer_registry_code = document.getElementById('waste_producer_registry_code');
		if(ownerInfo.owner_sku !== undefined && ownerInfo.owner_sku != '' && ownerInfo.owner_sku != null){
			waste_producer_registry_code.value = ownerInfo.owner_sku;
		}
}

function autoFillRentedTares(contract_service)
{
	// Ensure that "contract_service" is an object
	if(typeof contract_service != 'object'){
		displaySystemError();
		return false;
	}

	// Show "rentedTareArea" element
	var rentedTareArea = document.getElementById('rentedTareArea');
	rentedTareArea.style.display = 'block';

	// Sort "contract_service" by the number of garbage and tare combinations
	var garbageTareCombinations = {};
	for(var key in contract_service)
	{
		var testKey = contract_service[key].garbage_id +','+ contract_service[key].item_type_id;
		if(!(testKey in garbageTareCombinations)){
			garbageTareCombinations[testKey] = 1;
		}else{
			garbageTareCombinations[testKey]++;
		}
	}

	// Add rented tare row for each "contract_service" object
	for(var key in garbageTareCombinations){
		var stringSplit = key.split(',');
		var garbage_id = stringSplit[0];
		var item_type_id = stringSplit[1];
		var amount = garbageTareCombinations[key];
		addRentedTareRow(garbage_id, item_type_id, amount);
	}
}

/* Resorts all "ownGarbage" selectors to have garbage used in contract services at the top of the list */
function resortOwnGarbage(contract_service)
{
	// Ensure that "contract_service" is an object
	if(typeof contract_service != 'object'){
		displaySystemError();
		return false;
	}

	// Sort "contract_service" by unique garbage
	var uniqueGarbage = [];
	for(var key in contract_service)
	{
		if(uniqueGarbage.indexOf(contract_service[key].garbage_id) < 0){
			uniqueGarbage.push(contract_service[key].garbage_id);
		}
	}

	if(uniqueGarbage.length == 0){
		return;
	}

	// Get all ownGarbage selectors
	var ownGarbageSelectors = document.getElementsByClassName('ownGarbage');

	// Remove "contract_service" garbage from all "ownGarbage" selectors on screen
	for(var i = 0, max = ownGarbageSelectors.length; i < max; i++)
	{
		for(var i2 = 0, max2 = ownGarbageSelectors[i].options.length; i2 < max2; i2++)
		{
			if(ownGarbageSelectors[i].options[i2] === undefined){
				continue;
			}else if(ownGarbageSelectors[i].options[i2].index === undefined || ownGarbageSelectors[i].options[i2].index === null){
				continue;
			}
			var index = ownGarbageSelectors[i].options[i2].index;
			var value = parseInt(ownGarbageSelectors[i].options[i2].value);
			if(uniqueGarbage.indexOf(value) > -1){
				ownGarbageSelectors[i].remove(index);
			}
		}
	}

	// Add "contract_service" garbage to the top of all "ownGarbage" selectors on screen
	for(var i = 0, max = ownGarbageSelectors.length; i < max; i++)
	{
		for(var key in uniqueGarbage)
		{
			for(var key2 in garbage)
			{
				if(uniqueGarbage[key] == garbage[key2].garbage_id){
					var option = document.createElement('option');
					option.value = garbage[key2].garbage_id;
					option.innerHTML = garbage[key2].name;
					if(garbage[key2].garbage_sku !== undefined && garbage[key2].garbage_sku != ''){
						option.innerHTML += ' ('+ garbage[key2].garbage_sku +')';
					}
					ownGarbageSelectors[i].add(option, key);
				}
			}
		}
	}

	// Move "contract_service" garbage to the beginning of the global "garbage" variable
	for(var key in uniqueGarbage)
	{
		for(var key2 in garbage)
		{
			if(uniqueGarbage[key] == garbage[key2].garbage_id){
				arrayMoveIndex(garbage, key2, key);
			}
		}
	}
}

function autoFillWasteOrigin(el_order)
{
	// Ensure that "el_order" is an object
	if(el_order === undefined || typeof el_order !== 'object'){
		displaySystemError();
		return false;
	}

	// Get reference to the "waste_producer_waste_origin" select
	var select = document.getElementById('waste_producer_waste_origin');

	//
	for(var key in select.options){
		if(select.options[key].value == 'waste_producer_waste_origin_household' && el_order.waste_producer_waste_origin_household !== undefined && el_order.waste_producer_waste_origin_household === true){
			select.selectedIndex = select.options[key].index;
			break;
		}else if(select.options[key].value == 'waste_producer_waste_origin_ship' && el_order.waste_producer_waste_origin_ship !== undefined && el_order.waste_producer_waste_origin_ship === true){
			select.selectedIndex = select.options[key].index;
			break;
		}else if(select.options[key].value == 'waste_producer_waste_origin_temporary_storage' && el_order.waste_producer_waste_origin_temporary_storage !== undefined && el_order.waste_producer_waste_origin_temporary_storage === true){
			select.selectedIndex = select.options[key].index;
			break;
		}else if(select.options[key].value == 'waste_producer_waste_origin_foreign_entrepreneur' && el_order.waste_producer_waste_origin_foreign_entrepreneur !== undefined && el_order.waste_producer_waste_origin_foreign_entrepreneur === true){
			select.selectedIndex = select.options[key].index;
			break;
		}else if(select.options[key].value == 'waste_producer_waste_origin_transferor' && el_order.waste_producer_waste_origin_transferor !== undefined && el_order.waste_producer_waste_origin_transferor === true){
			select.selectedIndex = select.options[key].index;
			break;
		}else if(select.options[key].value == 'waste_producer_waste_origin_unknown' && el_order.waste_producer_waste_origin_unknown !== undefined && el_order.waste_producer_waste_origin_unknown === true){
			select.selectedIndex = select.options[key].index;
			break;
		}
	}

	// Trigger change event on select
	$('#waste_producer_waste_origin').trigger('change');
}

function changePassword(e)
{
	// Prevent a standard form submit
	if(e !== undefined){
		e.preventDefault();
	}

	// Parse owner from PHP session as JSON
	var ownerString = '';
	if(ownerString != ''){
		var owner = JSON.parse(ownerString);
	}
	if(owner === undefined){
		return false;
	}

	// Get password fields in form
	var currentPassword = document.getElementById('currentPassword');
	var newPassword = document.getElementById('newPassword');
	var newPasswordRepeat = document.getElementById('newPasswordRepeat');

	if(currentPassword === null || newPassword === null || newPasswordRepeat === null){
		console.log('Unable to reference password fields in form');
		displaySystemError();
		return false;
	}

	// Reset potential error messages from previous attempt
	var inputErrorElm = currentPassword.parentElement.lastElementChild;
	inputErrorElm.innerHTML = '';
	var inputErrorElm = newPassword.parentElement.lastElementChild;
	inputErrorElm.innerHTML = '';

	// Compile data string
	var dataString = 'owner_id='+ owner.owner_id +'&currentPassword='+ currentPassword.value +'&newPassword='+ newPassword.value +'&newPasswordRepeat='+ newPasswordRepeat.value;

	// Submit login request
	AJAXPost('AJAX/changePassword.php', dataString, function(result){

		// Handle unexpected return result
		if(typeof result !== 'object' || result.status === undefined){
			console.log('Error - An unexpected AJAX result was returned:');
			console.log(result);
			displaySystemError();
			return false;
		}

		// Handle return results
		if(result.status == 1){ // Success

			// Display success message
			alert('Teie parool on muudetud.');

			// Display logout notice
			alert('Nüüd logitakse teid välja. Palun logige uuesti sisse, kasutades oma uut parooli.');

			// Log out
			logout();

		}else if(result.status == 0){ // Error

			if(result.message !== undefined && result.message == 'Errors found'){

				console.log(result);
				displaySystemError();
				return false;

			}

			if(result.parametersMissing !== undefined){ // Missing API parameters

				console.log('Error - API request failed:');
				console.log(result);
				displaySystemError();
				return false;

			}

			if(result.parametersEmpty !== undefined){ // Empty parameters

				for(var key in result.parametersEmpty){
					// Determine the parameter name
					var parameterName = result.parametersEmpty[key];

					// Define error message
					var errorMessage = "Kohustuslik väli";

					// Insert error message
					insertParameterInputMessage(parameterName, errorMessage);
				}

			}

			if(result.parameterErrors !== undefined){ // Other parameter errors

				for(var key in result.parameterErrors){
					// Determine the parameter name
					var parameterName = result.parameterErrors[key].parameter;

					// Determine error message
					var errorMessage = result.parameterErrors[key].error;

					// Insert error message
					insertParameterInputMessage(parameterName, errorMessage);
				}

			}

			// Focus currentPassword field
			currentPassword.focus();

		}

	});
}

function displaySystemError(errorInfoText)
{
	var text = 'Ilmnes süsteemi tõrge! \n\nPlease pöörduge info@epler-lorenz.ee ';
	if(errorInfoText !== undefined && errorInfoText != ''){
		text += '\n\n' + errorInfoText;
	}
	alert(text);
}

function enableFinalOperator(contract_id)
{
	// Ensure that "contract_id" is defined
	if(contract_id == ''){
		return false;
	}

	// Ensure that contracts are available
	if(typeof contracts !== 'object'){
		return false;
	}

	//
	for(var key in contracts)
	{
		if(contracts[key].contract_id != contract_id){
			continue;
		}else if(contracts[key].is_el_final_operator_available){
			document.getElementById('order_has_final_operator').style.display = 'block';
		}else{
			document.getElementById('order_has_final_operator').style.display = 'none';
		}
	}
}

function transportAreaHide()
{
	document.getElementById('transportArea').style.display = 'none';
}

function transportAreaDisplay()
{
	document.getElementById('transportArea').style.display = 'block';
}

function ownTransportAreaHide()
{
	document.getElementById('ownTransportArea').style.display = 'none';
}

function ownTransportAreaDisplay()
{
	document.getElementById('ownTransportArea').style.display = 'block';
}

function wasteProducerWasteOriginChange(e)
{
	if(e.target.value == 'waste_producer_waste_origin_ship')
	{
		// Get reference to the parent element of the form field "waste_producer_waste_origin"
		var parent = document.getElementById('waste_producer_waste_origin').parentNode;

		// Add form field "waste_producer_ship_imo_number"
		var inputSection = document.createElement('div');
		inputSection.className = 'inputSection';
		var label = document.createElement('label');
		label.className = 'topLabel';
		label.setAttribute('for', 'waste_producer_ship_imo_number');
		label.innerHTML = "IMO number";
		var font = document.createElement('font');
		font.setAttribute('color', 'red');
		font.innerHTML = '&nbsp;*';
		label.appendChild(font);
		inputSection.appendChild(label);
		inputSection.appendChild(document.createElement('br'));
		var input = document.createElement('input');
		input.id = 'waste_producer_ship_imo_number';
		input.name = 'waste_producer_ship_imo_number';
		input.setAttribute('type', 'text');
		inputSection.appendChild(input);
		var span = document.createElement('span');
		span.className = 'inputError';
		inputSection.appendChild(span);
		parent.parentNode.insertBefore(inputSection, parent.nextSibling);

		// Hide form field "waste_producer_company_name"
		document.getElementById('waste_producer_company_name').parentNode.style.display = 'none';

		// Add form field "waste_producer_ship_name"
		var inputSection = document.createElement('div');
		inputSection.className = 'inputSection';
		var label = document.createElement('label');
		label.className = 'topLabel';
		label.setAttribute('for', 'waste_producer_ship_name');
		label.innerHTML = "Laeva nini";
		var font = document.createElement('font');
		font.setAttribute('color', 'red');
		font.innerHTML = '&nbsp;*';
		label.appendChild(font);
		inputSection.appendChild(label);
		inputSection.appendChild(document.createElement('br'));
		var input = document.createElement('input');
		input.id = 'waste_producer_ship_name';
		input.name = 'waste_producer_ship_name';
		input.setAttribute('type', 'text');
		inputSection.appendChild(input);
		var span = document.createElement('span');
		span.className = 'inputError';
		inputSection.appendChild(span);
		parent.parentNode.insertBefore(inputSection, parent.nextSibling);

		// Add form field "waste_producer_ship_flag_state"
		var inputSection = document.createElement('div');
		inputSection.className = 'inputSection';
		var label = document.createElement('label');
		label.className = 'topLabel';
		label.setAttribute('for', 'waste_producer_ship_flag_state');
		label.innerHTML = "Lipuriik";
		var font = document.createElement('font');
		font.setAttribute('color', 'red');
		font.innerHTML = '&nbsp;*';
		label.appendChild(font);
		inputSection.appendChild(label);
		inputSection.appendChild(document.createElement('br'));
		var input = document.createElement('input');
		input.id = 'waste_producer_ship_flag_state';
		input.name = 'waste_producer_ship_flag_state';
		input.setAttribute('type', 'text');
		inputSection.appendChild(input);
		var span = document.createElement('span');
		span.className = 'inputError';
		inputSection.appendChild(span);
		parent.parentNode.insertBefore(inputSection, parent.nextSibling);
	}
	else
	{
		// Remove form fields "waste_producer_ship_imo_number", "waste_producer_ship_name" and "waste_producer_ship_flag_state"
		var elm = document.getElementById('waste_producer_ship_imo_number');
		if(typeof(elm) != 'undefined' && elm != null){
			elm.parentNode.remove();
		}
		var elm = document.getElementById('waste_producer_ship_name');
		if(typeof(elm) != 'undefined' && elm != null){
			elm.parentNode.remove();
		}
		var elm = document.getElementById('waste_producer_ship_flag_state');
		if(typeof(elm) != 'undefined' && elm != null){
			elm.parentNode.remove();
		}

		// Show form field "waste_producer_company_name"
		document.getElementById('waste_producer_company_name').parentNode.style.display = 'block';
	}

	if(e.target.value == 'waste_producer_waste_origin_temporary_storage' || e.target.value == 'waste_producer_waste_origin_foreign_entrepreneur' || e.target.value == 'waste_producer_waste_origin_transferor' || e.target.value == 'waste_producer_waste_origin_different')
	{
		document.getElementById('waste_producer_company_name').parentNode.style.display = 'block';
		document.getElementById('waste_producer_registry_code').parentNode.style.display = 'block';
		document.getElementById('waste_producer_site_address').parentNode.style.display = 'block';
	}
	else
	{
		document.getElementById('waste_producer_company_name').parentNode.style.display = 'none';
		document.getElementById('waste_producer_registry_code').parentNode.style.display = 'none';
		document.getElementById('waste_producer_site_address').parentNode.style.display = 'none';
	}
}

function wasteTransporterAreaHide()
{
	document.getElementById('wasteTransporterArea').style.display = 'none';
}

function wasteTransporterAreaDisplay()
{
	document.getElementById('wasteTransporterArea').style.display = 'block';
}

function displayContractNotes(contract_id)
{
	// Empty and hide the "contract_notes" element
	var contract_notes = document.getElementById('contract_notes');
	contract_notes.innerHTML = '';
	contract_notes.style.display = 'none';

	// Parse contract(s) info from PHP session as JSON
	var contractsString = '';
	if(contractsString != ''){
		var contracts = JSON.parse(contractsString);
	}
	if(contracts === undefined){
		return false;
	}

	// Display contract notes (if any)
	for(var key in contracts){
		if(contracts[key].contract_id == contract_id){
			if(contracts[key].notes !== null && contracts[key].notes != ''){
				contract_notes.innerHTML = contracts[key].notes;
				contract_notes.style.display = 'block';
			}
			break;
		}
	}
}

function getContractService(contract_id, object_id, emptying_date)
{
	// Empty the "rentedTareRows" element and hide the "rentedTareArea" element
	document.getElementById('rentedTareRows').innerHTML = '';
	document.getElementById('rentedTareArea').style.display = 'none';

	// Ensure that "contract_id", "object_id" and "emptying_date" is defined
	if(contract_id == '' || object_id == '' || emptying_date == ''){
		return false;
	}

	// Submit "getContractService" AJAX request
	AJAXGet('AJAX/getContractService.php?contract_id='+ contract_id +'&object_id='+ object_id +'&emptying_date='+ emptying_date, function(result)
	{
		// Handle return results
		if(typeof result === 'object'){
			autoFillRentedTares(contract_service = result);
			resortOwnGarbage(contract_service = result);
		}else if(result !== true){
			console.log('Error - An unexpected AJAX result was returned:');
			console.log(result);
			displaySystemError();
		}
	});
}

function getTempTares(contract_id)
{
    // Ensure that "contract_id" is defined
    if(contract_id == ''){
        return;
    }

    // Submit "getObjects" AJAX request
    AJAXGet('AJAX/getTmpTares.php?contract_id='+ contract_id, function(result)
    {
        if(typeof result !== 'object'){
            displaySystemError();
        }else{
            autoFillTempTares(result);
        }
    });
}

function getObjects(contract_id)
{
	// Ensure that "contract_id" is defined
	if(contract_id == ''){
		autoFillObjects('');
		return;
	}

	// Submit "getObjects" AJAX request
	AJAXGet('AJAX/getObjects.php?contract_id='+ contract_id, function(result)
	{
		// Handle return results
		if(!result){ // No objects returned
			alert('Sellele lepingule pole objekti määratud');
			window.location.reload();
		}else if(typeof result !== 'object'){ // System error
			console.log('Error - An unexpected AJAX result was returned:');
			console.log(result);
			displaySystemError();
		}else{ // Success
			autoFillObjects(result);
		}
	});
}

function insertParameterInputMessage(parameterElementName, message)
{
	// Locate the "inputError" span element for this parameter
	var elm = document.getElementsByName(parameterElementName);
	if(elm.length == 0 || elm[0] === undefined){
		console.log('Unable to reference element with name "' + parameterElementName + '"');
		return false;
	}

	var parentElement;
	if(elm[0].parentElement.className == 'inputSection'){
		parentElement = elm[0].parentElement;
	}else if(elm[0].parentElement.parentElement.className == 'inputSection'){
		parentElement = elm[0].parentElement.parentElement
	}else{
		parentElement = elm[0].parentElement.parentElement.parentElement;
	}

	var inputErrorElement = parentElement.lastElementChild;
	if(inputErrorElement.className != 'inputError'){
		console.log('Unable to locate the appropriate "inputError" element');
		return false;
	}

	// Ensure that error message does not already exist
	if(inputErrorElement.innerHTML == '* ' + message){
		return;
	}

	// Insert the error message
	if(inputErrorElement.innerHTML != ''){
		inputErrorElement.innerHTML += '<br>';
	}
	inputErrorElement.innerHTML += '* ' + message;
}

function login(e)
{
	// Prevent a standard form submit
	if(e === undefined){
		return false;
	}
	e.preventDefault();

	// Reset potential error messages from previous attempt
	var inputErrorElm = document.getElementById('public_order_form_password').parentElement.parentElement.lastElementChild;
	inputErrorElm.innerHTML = '';

	// Compile data string
	var dataString = 'owner_sku='+ document.getElementById('owner_sku').value +'&public_order_form_password='+ document.getElementById('public_order_form_password').value;

	// Reset password field
	var passwordElm = document.getElementById('public_order_form_password');
	passwordElm.value = '';

	// Submit login request
	AJAXPost('AJAX/login.php', dataString, function(result){

		// Handle anticipated return result(s)
		if(result === true){ // Success

			// Reload page to apply new PHP session
			location.reload();

		}else{ // Failure

			// Focus password field
			passwordElm.focus();

			// Display unsuccessful login error message
			inputErrorElm.innerHTML = '* Vale kasutajanimi või parool';

		}

	});
}

function logout()
{
	// Submit logout request
	AJAXGet('AJAX/logout.php', function(result){

		if(result){
			location.reload();
		}else{
			displaySystemError();
		}

	});
}

function removeAdditionalServiceRow(additionalServiceID)
{
	var additionalServiceItem = document.getElementById('additionalServiceItem'+ additionalServiceID);

	var confirm = window.confirm("Eemalda see toode?");
	if(!confirm){
		return false;
	}

	if(additionalServiceItem.parentNode.children.length == 1){
		additionalServiceItem.parentNode.removeChild(additionalServiceItem);
		addAdditionalServiceRow();
	}else{
		additionalServiceItem.parentNode.removeChild(additionalServiceItem);
	}
}

function removeOwnTareRow(ownTareID)
{
	var ownTareItem = document.getElementById('ownTareItem'+ ownTareID);

	var confirm = window.confirm("Eemalda see toode?");
	if(!confirm){
		return false;
	}

	if(ownTareItem.parentNode.children.length == 1){
		ownTareItem.parentNode.removeChild(ownTareItem);
		addOwnTareRow();
	}else{
		ownTareItem.parentNode.removeChild(ownTareItem);
	}
}

function removeTmpTareRow(tmpTareID)
{
	var ownTareItem = document.getElementById('tmpTareItem'+ tmpTareID);

	var confirm = window.confirm("Eemalda see toode?");
	if(!confirm){
		return false;
	}

	if(ownTareItem.parentNode.children.length == 1){
		ownTareItem.parentNode.removeChild(ownTareItem);
		addOwnTareRow();
	}else{
		ownTareItem.parentNode.removeChild(ownTareItem);
	}
}

function removeRentedTareRow(rentedTareID)
{
	var rentedTareQuantity = document.getElementById('rentedTareQuantity'+ rentedTareID);
	var rentedTareExchangeQuantity = document.getElementById('rentedTareExchangeQuantity'+ rentedTareID);

	var confirm = window.confirm("Eemalda see toode?");
	if(!confirm){
		return false;
	}

	rentedTareQuantity.value = '';
	rentedTareExchangeQuantity.value = '';
    jQuery(rentedTareQuantity).closest('.tareRow').remove();
}

function resetForm(confirm)
{
	if(confirm === undefined){
		confirm = true;
	}

	if(!confirm){
		window.location.href = '/';
	}else{
		var response = window.confirm("Kas oled kindel, et soovid selle tellimuse tühistada?\n\nKõik väljad tühjendatakse ja sisestatud andmed lähevad kaotsi.");
		if(response){
			window.location.href = '/';
		}else{
			return false;
		}
	}
}

function submitForm()
{
	// Disable submit button
	document.getElementById('formSubmitButton').style.display = 'none';

	// Reset potential error messages from previous submit
	inputErrorElements = document.getElementsByClassName('inputError');
	for(var key in inputErrorElements){
		inputErrorElements[key].innerHTML = '';
	}

	// Ensure that the EULA has been agreed to
	if(!document.getElementById('eula').checked)
	{
		// Display error
		document.getElementById('eula').parentElement.lastElementChild.innerHTML = "Kasutustingimustega peab nõustuma";
		alert("Te peate nõustuma kasutustingimustega enne tellimuse esitamist.");

		// Re-enable submit button
		document.getElementById('formSubmitButton').style.display = 'inline-block';

		// Return false
		return false;
	}

	// Gather form data
	var elements = $('#form').find(':input');
	var dataString = '';

	for(var key in elements){
		if(
			elements[key] === null
			|| typeof elements[key] !== 'object'
			|| !('type' in elements[key])
			|| !('name' in elements[key])
			|| elements[key].name == ''
			|| elements[key].type == 'button'
			|| elements[key].style.display == 'none'
			|| elements[key].parentNode.style.display == 'none'
		){
			continue;
		}

		if(elements[key].type == 'text' || elements[key].type == 'textarea' || elements[key].type == 'select-one'){
			if(dataString != ''){
				dataString += '&';
			}
			dataString += elements[key].name + '=' + encodeURIComponent(elements[key].value);
		}else if(elements[key].type == 'radio' || elements[key].type == 'checkbox'){
			if(elements[key].checked){
				if(dataString != ''){
					dataString += '&';
				}
				dataString += elements[key].name + '=' + elements[key].value;
			}
		}else{
			console.log('Encountered an unexpected form element type');
			continue;
		}
	}

	// Send AJAX POST request
	AJAXPost('AJAX/submitForm.php', dataString, function(result)
	{
		// Handle unexpected return result
		if(typeof result !== 'object' || result.status === undefined)
		{
			// Log error
			console.log('Error - An unexpected AJAX result was returned:');
			console.dir(result);

			// Display system error
			displaySystemError(result);

			// Reload page
			window.location.reload();

			// Return false
			return false;
		}

		// Handle return results
		if(result.status == 1) // Success
		{
			// Display a proper success message
			alert("Teie tellimus on vastu võetud. Aitäh!");

			// Reload form
			location.reload();
		}
		else if(result.status == 0) // Error
		{
			// Scroll to top of page
			window.scrollTo(0, 0);

			// Re-enable submit button
			document.getElementById('formSubmitButton').style.display = 'inline-block';

			// Determine the type of error
			if(result.parametersEmpty !== undefined) // Empty parameters
			{
				for(var key in result.parametersEmpty)
				{
					// Determine the parameter name
					var parameterName = result.parametersEmpty[key];

					// Define error message
					var errorMessage = "Kohustuslik väli";

					// Insert error message
					insertParameterInputMessage(parameterName, errorMessage);
				}

				alert("Tellimuses leiti üks või rohkem viga.\nVead on tellimuses punasega märgitud.");
			}
			else if(result.parameterErrors !== undefined) // Other parameter errors
			{
				for(var key in result.parameterErrors)
				{
					// Determine the parameter name
					var parameterName = result.parameterErrors[key].parameter;

					// Determine error message
					var errorMessage = result.parameterErrors[key].error;

					// Insert error message
					insertParameterInputMessage(parameterName, errorMessage);
				}

				alert("Tellimuses leiti üks või rohkem viga.\nVead on tellimuses punasega märgitud.");
			}
			else if(result.message !== undefined && result.message == 'At least one order item or additional service must be present') // Missing order item or additional service message
			{
				alert('Tellimuse vormistamiseks peate valima vähemalt ühe toote või lisateenuse');
			}
			else if(result.parametersMissing !== undefined) // Missing API parameters
			{
				// Log error
				console.log('Error - API request failed:');
				console.log(result);

				// Display system error
				displaySystemError();

				// Reload page
				window.location.reload();
			}
			else // Back-end system error
			{
				if(result.message !== undefined)
				{
					// Log error
					console.log(result.message);

					// Display system error
					displaySystemError(result.message);

					// Reload page
					window.location.reload();
				}
				else
				{
					// Log error
					console.dir(result);

					// Display system error
					displaySystemError();

					// Reload page
					window.location.reload();
				}
			}
		}
	});
}