$(function() {
	repositionLeftNavi();
	$(window).resize(function(){
		repositionLeftNavi();
	});
});

function repositionLeftNavi() {
	var wrapperWidth = 980;
	var windowWidth = $('body')[0].scrollWidth;
	var leftNaviLeft = 0;
	if(windowWidth > wrapperWidth) {
		leftNaviLeft = (windowWidth - wrapperWidth) / 2;
	}
	
	$('.leftmenue').css('left', leftNaviLeft + 'px');
}