window.addEvent('domready', function(){
setupScroll();		
}); 

function setupScroll(){


var currentSet = 1;
hideShowNav(currentSet);
var thumbsWrap = document.getElementById("slideShow");
var scrolPos = 0;
thumbsWrap.scrollLeft=0;
thumbsWrap.style.overflow = 'hidden';



var scroll = new Fx.Scroll2('slideShow',{
wait: false,
duration: 1200,
offset: {'x': 0, 'y': 0},
transition: Fx.Transitions.Quad.easeInOut
});



$('nextSet').addEvent('click', function(event) {
currentSet=currentSet+1;

event = new Event(event).stop();
hideShowNav(currentSet);
//scroll.toElement('set'+currentSet);

if (currentSet==1){scroll.start(0,0);}
else if (currentSet==3){scroll.start(1125,0);}
else{scroll.start(560,0);};



});

$('prevSet').addEvent('click', function(event) {
currentSet=currentSet-1;
event = new Event(event).stop();
hideShowNav(currentSet);
//scroll.toElement('set'+currentSet);
if (currentSet==1){scroll.start(0,0);}
else if (currentSet==3){scroll.start(1125,0);}
else{scroll.start(560,0);};


});	

}

function hideShowNav(set){

if (set==1){
var element = document.getElementById("prevSet");
element.style.visibility = 'hidden';
}else{
var element = document.getElementById("prevSet");
element.style.visibility = 'visible';
};

if (set==3){
var element = document.getElementById("nextSet");
element.style.visibility = 'hidden';
}else{
var element = document.getElementById("nextSet");
element.style.visibility = 'visible';
};

}