function activate_teaser(obj) {
  
  var inactiveClassName = 'TeaserSmall';
  var activeClassName = 'TeaserBig';
  
  if(obj.className == activeClassName)
    return;
    
  var allElems = obj.parentNode.childNodes;
  obj.className = activeClassName;
  
  for(var i=0; i<allElems.length; i++) {
    
    if( allElems[i] !=  obj && allElems[i].className == activeClassName) {
      allElems[i].className = inactiveClassName;
    }
  
  }
  
}

function showGallery(afile) {

    var popupUrl =  "/popup_gallery.php?file=" + afile + "&img=0";
		    popupUrl += "&title1=&title2=Die+Bilder+zum+Spiel&title3=&s=14ddcc3fef6a1b8ec2fbd53e31dfff06c0e41488";
		
		var newwin = window.open(popupUrl, "Galerie", "width=625,height=503,location=no,menubar=no,resizable=no,scrollbars=no,status=no,toolbar=no");
		newwin.focus();
   
}