#scrollbalken{ white-space:nowrap;
              width:720px;
              height:140px;
              
              overflow-x:scroll;
              overflow-y:hidden;
              }
                   
#scrollbalken a span img {display:inline;
                          height: 0; 
                          width: 0; 
                          border-width: 0;
                         }

#scrollbalken a:hover span img {position: absolute;
                                top:275px; 
                                left:400px; 
                                 height:300px;  
                                 width:300px;
                               	border:1px solid #999;	
                                 }