function getMap() {  
  var myLatlng1 = new google.maps.LatLng(49.674765, 18.327274); 
  var myLatlng2 = new google.maps.LatLng(49.68016, 18.349216); 
  
  var myOptions = {
    zoom: 14,
    center: new google.maps.LatLng(49.67773, 18.338392),
    mapTypeId: google.maps.MapTypeId.ROADMAP
  };
  map = new google.maps.Map(document.getElementById('contact-map'), myOptions);
  
  var marker1 = new google.maps.Marker({
    position: myLatlng1,
    map: map    
  }); 
  var infowindow1 = new google.maps.InfoWindow({
    content: '<strong>Autosalon</strong><br />17. listopadu 2337<br />738 02 Frýdek-Místek'
  });  
  google.maps.event.addListener(marker1, 'click', function() {
    infowindow1.open(map, marker1);
  }); 
  
  var marker2 = new google.maps.Marker({
    position: myLatlng2,
    map: map    
  }); 
  var infowindow2 = new google.maps.InfoWindow({
    content: '<strong>Servis</strong><br />Na Poříčí 3241<br />738 02 Frýdek-Místek'
  });  
  google.maps.event.addListener(marker2, 'click', function() {
    infowindow2.open(map, marker2);
  });        
} 

if(document.getElementById('contact-map')) {
  window.onload = getMap; 
}