function ShowLarge(element)
{
  var _width = 500;
  var _height = 395;
  
  var _imageIndex = element.src.lastIndexOf("/");
  var _image = element.src.substr(_imageIndex+1);
  
  var _typeIndex = element.src.lastIndexOf("/",_imageIndex-1);
  var _type = element.src.substr(_typeIndex+1, _imageIndex - _typeIndex-1);
  
  var _meetingIndex = element.src.lastIndexOf("/",_typeIndex-1);
  var _meeting = element.src.substr(_meetingIndex+1, _typeIndex - _meetingIndex-1);
  
  var _left = (window.screen.width / 2) - (_width / 2);
  var _top = (window.screen.height / 2) - (_height / 2);
  
  foto = window.open('bekijk-afbeelding.php?meeting='+_meeting+'&foto='+_image, 'thumbToLarge', 'height='+_height+', left='+_left+', top='+_top+', width='+_width+', toolbar=no');
  if (foto == null) alert("Popup blocker actief. De foto's worden getoond in een popup. Deze kunnen nu niet worden getoond.");
  else foto.focus();
}