function getScrollOffset(){

     var x=0,y=0;

     if (self.pageYOffset) // all except Explorer

     {

          x = self.pageXOffset;

          y = self.pageYOffset;

     }

     else if (document.documentElement && typeof(document.documentElement.scrollTop)!=undefined)

          // Explorer 6 Strict

     {

          x = document.documentElement.scrollLeft;

          y = document.documentElement.scrollTop;



     }

     else if (document.body) // all other Explorers

     {

          x = document.body.scrollLeft;

          y = document.body.scrollTop;

     }

     return {left: x, top: y};

}



function load_foto_to_container(event,path,widht_foto,height_foto){

   //if ($('foto_container').style.display!='none')   new Effect.Fade('foto_container'); 

   var event = event || window.event;

   $('foto_container').style.display = 'none';

   $('foto').src = path;

   scroll_info  = getScrollOffset();

   $('foto_container').style.top = (Event.pointerY(event))+'px';

   $('foto_container').style.left = (Event.pointerX(event))+'px';

   //$('foto_container').style.left = (Math.round(screen.width/2)-Math.round(widht_foto))+'px';

   new Effect.Appear('foto_container', {duration:.9});

}



function hide_foto(){

  new Effect.Fade('foto_container'); 

}