google.load("maps", "2");

function returnIUMarkerIcon (strImageFile) {
  iconReturn = new google.maps.Icon({image: 'http://www.interunis.co.uk/images/google-maps/markers/' + strImageFile,
                                     shadow: 'http://www.interunis.co.uk/images/google-maps/marker-shadow.png',
                                     transparent: 'http://www.interunis.co.uk/images/google-maps/marker-transparent.png',
                                     iconSize: new google.maps.Size(58, 91),
                                     shadowSize: new google.maps.Size(101, 89),
                                     iconAnchor: new google.maps.Point(29, 89),
                                     infoWindowAnchor: new google.maps.Point(29, 89),
                                     imageMap: [11,3,46,3,47,4,48,4,49,5,50,6,51,7,52,8,53,9,53,10,54,11,54,46,53,47,53,48,
                                                52,49,52,50,51,51,50,52,49,52,48,53,47,53,46,54,38,54,29,87,28,87,19,54,11,
                                                54,10,53,9,53,8,52,7,52,6,51,5,50,5,49,4,48,4,47,3,46,3,11,4,10,4,9,5,8,6,7,
                                                7,6,8,5,9,4,10,4]});

  return iconReturn;
}//function