var slideActive = false;
var direction = 0;
var page = 0;
function movethumbs(direction){	
if(direction == 1 && slideActive != true) {
	if(page == 1 || page == 2 || page == 3 ){
		slideActive = true;
		new Effect.Move('thumbnails', {x: 645, y:0, mode:'relative', duration: 0.5, transition: Effect.Transitions.sinoidal, afterFinish: function() {slideActive= false;}});
		page = page - 1;
    	}
    }
if(direction == 0 && slideActive != true){
   if(page == 0 || page == 1){
		slideActive = true;
		new Effect.Move('thumbnails', {x: -645, y:0, mode:'relative', duration: 0.5, transition: Effect.Transitions.sinoidal, afterFinish: function() {slideActive= false;}});
		page = page+1;
		}
	}
}