#overlay 
{ 
height:239px; 
width:387px; 
margin-top: -239px; 
position: relative; 
z-index: 1; 
} 
.m13 #overlay { 
background: url(/graphics/lokalita/13.gif); 
} 
.m9 #overlay { 

background: url(/graphics/lokalita/9.gif); 

}