///////////////////////////// [INIZIO] funz. Div invisibili Anteprime [INIZIO]////////////////////////////
//show_at (msn_space.html, foto_album.html,mostra_video.html,mostravideogenerale.html, video.html, home.html)
//show_mid (msn_space.html, foto_album.html,mostra_video.html,mostravideogenerale.html, video.html, home.html)
//rank_hide (msn_space.html, foto_album.html,mostra_video.html,mostravideogenerale.html, video.html, home.html)

function show_at(layer,pos,offx,offy){
  var obj = document.getElementById(pos);
  var left = 0;
  var top = 0;
  do{
      left += obj.offsetLeft;
      top += obj.offsetTop;
      obj = obj.offsetParent;
    }
  while (obj != null);

  var lay = document.getElementById(layer);
  lay.style.left = (left + offx) + "px"; 
  lay.style.top = (top + offy) + "px";
  lay.style.visibility = "visible";
}

function show_mid(layer,helper){
show_at(layer,helper,-document.getElementById(layer).offsetWidth,0);
}

function rank_hide(layer){
  document.getElementById(layer).style.visibility = "hidden";
}
///////////////////////////// [FINE] funz. Div invisibili Anteprime [FINE]////////////////////////////