var $page = 0;
var $w = 235;
var $tVisible = 3;
var $numTeaser;

$(document).ready(function() {
	$d = $("div#blaettern");
	if($d == null) return;
	$pLeft = $(".blaetter_pfeil_links a", $d);
	$pRight = $(".blaetter_pfeil_rechts a", $d);
	$pLeft.click(function() {
		page(1);
		return false;
	});
	$pRight.click(function() {
		page(-1);
		return false;
	});
	$dContent = $("#content_top");
	$numTeaser = $("div.teaser", $dContent).length;
	$numTeaser -= $tVisible;
	
	if($numTeaser <= 0) {
		$d.hide();
	}
});

function page(dir) {
	$d = $("#content_top");
	$page += dir;
	$x = $w*$page;

	if($x > 0) {
		$x = -$w*$numTeaser;
		$page = -$numTeaser;
		//$page -= dir;
		//return;
	}
	if($page < -$numTeaser) {
		$x = 0;
		$page = 0;
		//$page -= dir;
		//return;
	}
	//$d.css("left", $w*$page);
	$d.animate({left: $x }, 750, function() {});
}