// 

var prevSlide ='';
Event.observe(window, 'load', function() {
	$('accben').observe('click', function(){ changeSlide('accben');});
	$('memben').observe('click', function(){ changeSlide('memben');});
	$('addben').observe('click', function(){ changeSlide('addben');});
	changeSlide('accben');
});
function changeSlide(slide){
	if(prevSlide!=slide){
		if(slide =='accben'){
			x =0;
		}else
		if(slide =='memben'){
			x =-760;
		}else
		if(slide =='addben'){
			x =-1520;
		}
		$(slide).src="images/active/"+slide+".png";
		if($(prevSlide)){
			$(prevSlide).src="images/inactive/"+prevSlide+".png";
		}
		prevSlide = slide;
		new Effect.Move('slider', {x:x, y:0, duration:0.5, mode:'absolute'});
		
	}
}