Oznaczanie miejsca strzałką

var position = {
  "lon" : 18.611698,
  "lat" : 54.370658
};
DoCelu.showCursor(position);

<div id="map" style="width:800px; height:600px; "></div>
<script type="text/javascript">
//<![CDATA[
	jQuery(document).ready(function() {
	  DoCelu.loadMap(document.getElementById('map'), null, function() {
		var view = {
		  "lon" : 18.611698,
		  "lat" : 54.370658,
		  "zoom" : 13
		};
		DoCelu.setMapView(view);
	  });
	  jQuery('#test').mousedown(function() {
		var position = {
		  "lon" : 18.611698,
		  "lat" : 54.370658
		};
		DoCelu.showCursor(position);
	  });
	});
//]]>
</script>