var toggle_info_item = 0;

function toggle_info(){

  if(toggle_info_item == 0){ 
      new Effect.BlindDown('more-infos-layer',{ duration: 1.0 });
      toggle_info_item = 1;
  }
  else if(toggle_info_item == 1){ 
      new Effect.BlindUp('more-infos-layer',{ duration: 1.0 });
      toggle_info_item = 0;
  }
}