var exis_acc=false;
window.addEvent('domready', function(){

var mySlide = new Fx.Slide('det-pro');

var mySlide2 = new Fx.Slide('fotos-pro');
mySlide2.hide();

if(document.getElementById("acces-pro"))
{
	var mySlide3 = new Fx.Slide('acces-pro');
	mySlide3.hide();
	exis_acc=true	
}

$('op1').addEvent('click', function(e){
	e = new Event(e);
	mySlide.slideIn();
    mySlide2.slideOut();
   (exis_acc)? mySlide3.slideOut():'';
	e.stop();
});
$('op2').addEvent('click', function(e){
	e = new Event(e);
    mySlide.slideOut();
	mySlide2.slideIn();
    (exis_acc)? mySlide3.slideOut():'';
	e.stop();
});

if(exis_acc)
{
	$('op3').addEvent('click', function(e){
	e = new Event(e);
	mySlide.slideOut();
	mySlide2.slideOut();
	mySlide3.slideIn();
	e.stop();
});
}

});