HTML:

<div class="form-group">
	<label for="byName">podľa názvu spoločnosti (zadajte aspoň 3 písmená):</label>
	<input type="text" id="byName" placeholder="napr. Kerametal" maxlength="30" class="form-control" />
	<div id="response-message"></div>
</div>

JS / jQuery:

$("#byName").autocomplete({
	// solution #1 - simpler e.g. without spinner
	// 'source' => '/orsr/find-by-company-name', // implement in your own OrsrController
	// solution #2 - advanced e.g. add spinner or custom "no match" message
	'source' => function(request, response) {
		var msg = $("#response-message");
		$("#byName").parent().find("label")
			.append("<span class='spinner-border spinner-border-sm'></span>");
		$.ajax({
			url: "/orsr/find-by-company-name", // implement in your own OrsrController
			data: { term: request.term },
			success: function (data) {
				$("span.spinner-border").remove();
				if (!data.length) {
					msg.hide().html("Žádné záznamy pro: <b>"+request.term+"</b>").fadeIn();
				}
				response ($.map(data, function(item) {
					return {
						label: item.label, // e.g. "AAA AUTODOPRAVA s. r. o."
						value: item.value  // unique hash e.g. dnlwaXUyOCZTSUQ9NyZQPTA=
						// note: instead of hash you can return from OrsrController e.g. IČO
					}
				 }));
			}
		})
	},
	'minLength' => 3,
	'delay' => 750,
	'select' => function(event, ui) {
		var msg = $("#response-message");
		$("span.spinner-border").remove();
		$("#byName").parent().find("label")
			.append("<span class='spinner-border spinner-border-sm'></span>");
		event.preventDefault(); // prevent from setting JSON string into search field
		$(this).val(ui.item.label);
		// load company details
		$.ajax({
			url: "/orsr/company-detail", // implement in your own OrsrController
			data: { id : ui.item.value }, // company identifier - hash, ico, ..
			complete: function (response) {
				$("span.spinner-border").remove();
			},
			success: function (response) {
				if (response && response.html) {
					msg.html("<h3>Spoločnosť: "+(ui.item.label)+" </h3>"+response.html);
				}else{
					msg.hide().html("<span class='text-red'>Neplatná odpoveď zo servera.</span>").fadeIn();
				}
			},
			error : function() {
				msg.hide().html("<span class='text-red'>Chyba spojenia.</span>").fadeIn();
			}
		})

	},
	'focus' => function(event, ui) {
		event.preventDefault();
		$(this).val(ui.item.label); // set company name into search field
	},
});

PHP:

// see parser source code at Github.com:
// https://github.com/lubosdz/parser-orsr/blob/master/ConnectorOrsr.php

// OrsrController example:
class OrsrController extends Controller
{
	/**
	* Ajax demo handler - return autocomplete options for matching company name
	*/
	public function actionFindByCompanyName()
	{
		$term = empty($_GET['term']) ? '' : htmlspecialchars(trim($_GET['term']));
		$out = [];

		$connector = new ConnectorOrsr();
		$results = $connector->findByObchodneMeno($term);

		if($results && is_array($results)){
			foreach($results as $name => $link){
				// here we are returning link hash, which needs to be back decoded on selection
				// instead, you may return another attribute, e.g. IČO
				$link = StringHelper::base64UrlEncode($link);
				$out[] = [
					'label' => $name,
					'value' => $link
				];
			}
		}

		return $this->asJson($out);
	}

	/**
	* Ajax demo handler - return parsed company details
	*/
	public function actionCompanyDetail()
	{
		$link = empty($_GET['hash']) ? '' : StringHelper::base64UrlDecode($_GET['hash']);
		$out = [];

		if ($link) {
			$connector = new ConnectorOrsr();
			// here we assume hash contains company permalink
			// instead you can supply another parameters and use different
			// method e.g. $connector->getDetailById() or $connector->getDetailByICO()
			$out = $connector->getDetailByPartialLink($link);
		}

		return $this->asJson($out);
	}
}