function colocar(objId,refId,x,y){
  ref_pos = Element.positionedOffset($(refId))
  obj = $(objId);
  x = ref_pos[0]-x;
  y = ref_pos[1]-y;
  Element.absolutize(obj);
  obj.setStyle({left:x+"px",top:y+"px"});
  Element.relativize(obj);
}

function mostrar(objId){
  $(objId).setStyle({visibility:'visible'});
}

function resizer(){
  if($('banner-top').getWidth()<$('page').getWidth()){
    $('banner-top').setStyle({width:$('page').getWidth()+"px"});
    $('footer').setStyle({width:$('page').getWidth()+"px"});
  };
}
function fotoShow(foto){
  var t = document.viewport.getScrollOffsets();
  scrollTop = t.top+'px';
  scrollLeft = t.left+'px';
  pageWidth=document.viewport.getWidth();
  pageHeight=document.viewport.getHeight();
  
  new Ajax.Updater($('foto-show'),'http://entornoalaanarquia.com.ar/fotoShow.php?foto='+foto+'&w='+pageWidth+'&h='+pageHeight,{evalScripts:true});
  
  /*$('foto-show').update(cont);*/
  $('foto-show').setStyle({
    'display':'inherit',
    'width':pageWidth+'px',
    'height':pageHeight+'px',
    'top':scrollTop,
    'left':scrollLeft
    });
  $('foto-velo').setStyle({
    'display':'inherit',
    'width':(pageWidth-20)+'px',
    'height':pageHeight+'px',
    'border':'3px #000 solid',
    'top':scrollTop,
    'left':scrollLeft,
    opacity:0.7
    });
}
  

function fotoHide(){
  $('foto-show').setStyle({'display':'none'});
  $('foto-velo').setStyle({'display':'none'});
}