$(function(){
	
	$('#medien').mouseenter(function(){
		
		$('#medien ul').stop(true, true).show(300);
	});

	$('#medien').mouseleave(function(){
		$('#medien ul').delay(500).hide(300);
	});
	

kundengesamt = $('ul.slide_kunden li').length;
pages = Math.ceil(kundengesamt / 12);
currentpage = 1;

function unbusy(){
	busy=false;
	}
	
	$('#medien a').click(function(){
		filter = $(this).attr('class');
		if(filter=='medien'){
			return false;
			}
		
		$('.slide_kunden').animate({'margin-top':'0'},500);
		$('#leftControl_kunden').fadeOut(1);
		
		
		if(filter=='all'){
			$('ul.slide_kunden').isotope({ filter: "*" });
			$('#rightControl_kunden').fadeIn(1);
			$('#medien ul').hide(300);
			$('a.medien').html('Medien');
			
			numbervisible = $('.slide_kunden li').length;
			pages = Math.ceil(numbervisible / 12);
			currentpage = 1;
			busy=false;
			return false;
			}
		$('ul.slide_kunden').isotope({ filter: "'."+filter+"'" });
		$('a.medien').html($(this).html());
		$('#medien ul').hide(300);
		
		currentpage = 1;
		numbervisible = $('.slide_kunden .'+filter).length;
		pages = Math.ceil(numbervisible / 12);
	
		
		if(numbervisible<12){
			$('#leftControl_kunden').fadeOut(1);
			$('#rightControl_kunden').fadeOut(1);
		}
		if(numbervisible>12 ){
			$('#leftControl_kunden').fadeIn(1);
			$('#rightControl_kunden').fadeIn(1);
		}
		return false;			
	});
	


function checknavigation(){
	if(newpos>=0){
		$('#leftControl_kunden').fadeOut(1);
		}
}

busy=false;

$('#rightControl_kunden').click(function(){
	if(busy){return false;}
	busy=true;
	currentpage++;
	
	if(currentpage==pages){
		
		$('#rightControl_kunden').fadeOut(1);
	}

	toppos = $('.slide_kunden').css('margin-top').replace("px", "");
	$('#leftControl_kunden').fadeIn(300);
	newpos = Number(toppos)-260;
	$('.slide_kunden').animate({'margin-top':newpos},500);
	checknavigation();
	setTimeout(unbusy,500);
	})

$('#leftControl_kunden').click(function(){
	if(busy){return false;}
	busy=true;
	currentpage--;
	
	if(currentpage==1){
		$('#leftControl_kunden').fadeOut(1);
	}

	toppos = $('.slide_kunden').css('margin-top').replace("px", "");
	newpos = Number(toppos)+260;
	$('#rightControl_kunden').fadeIn(300);
	$('.slide_kunden').animate({'margin-top':newpos},500);
	checknavigation();
	setTimeout(unbusy,500);
	})






$('ul.slide_kunden').isotope({
  // options
  itemSelector : 'li',
  layoutMode : 'fitRows'
});








$('.img_customer a').mouseenter(function(){
	$('.img_c',this).fadeIn(300);
});

$('.img_customer a').mouseleave(function(){
	$('.img_c',this).fadeOut(300);
});






function gehirntest(){

$('#gehirntest01').delay(1000).fadeOut(500);
$('#gehirntest02').delay(1000).fadeIn(500,function(){
	$('#gehirntest02').delay(3000).fadeOut(500);
	$('#gehirntest01').delay(3000).fadeIn(500);
	});
}

gehirntest();
setInterval(gehirntest,8000);




});