window.addEvent('domready', function() {

  $$('.prod_foto' , '#gallery_page img' ).each(function(el){
    
    var cornerSize = 11 ; 
    var offsetTop = ( window.gecko ) ? -1 :  0 ; 
    var offsetLeft = ( window.opera ) ? 1 :  0 ; 
    var size = el.getSize(); 
    
    offsetTop = 0 ;
    offsetLeft = 0 ; 
    
  
    tl = new Element ('img',{src:'images/topLeft.gif'}).setStyle('border','none');
    tl.setStyles({position:'absolute',margin:offsetTop});
    tl.injectBefore ( el );
    
    tr = new Element ('img',{src:'images/topRight.gif'}).setStyle('border','none');
    tr.setStyles({position:'absolute',marginTop:offsetTop,marginLeft:(size.size.x-cornerSize+offsetLeft),'height':cornerSize,'width':cornerSize});
    tr.injectBefore ( el );    

    bl = new Element ('img',{src:'images/bottomLeft.gif'}).setStyle('border','none');
    bl.setStyles({position:'absolute',marginLeft:offsetTop,marginTop:(size.size.y-cornerSize),'height':cornerSize,'width':cornerSize});
    bl.injectBefore ( el );    

    br = new Element ('img',{src:'images/bottomRight.gif'}).setStyle('border','none');
    br.setStyles({position:'absolute',marginLeft:(size.size.x-cornerSize+offsetLeft),marginTop:(size.size.y-cornerSize),'height':cornerSize,'width':cornerSize});
    br.injectBefore ( el ); 
            
  });
  
});