margin = 0;
klick = 1;
contentmenge = 5;
contentmengenklicks = contentmenge;

function sliderLeft() {
if (klick <= 1) {
return 0;
}
else {
klick=klick - 1;

//document.getElementById('slider').style.marginLeft = margin +262 + 'px';
	$('#slider').animate({marginLeft:margin + 262 + 'px'}, 250); 
margin = margin + 262;
}
}


function sliderRight() {
if (klick >= contentmengenklicks) {
return 0;
}
else {
//document.getElementById('slider').style.marginLeft = margin -262 + 'px';
	$('#slider').animate({marginLeft:margin - 262 + 'px'}, 250); 
margin = margin - 262;
klick=klick + 1;
}
}