var currentPage = 4;

function handleMenuAction(item) {
	var mapping = {
		0: getRoot('ajax-page/o-was'),
		1: getRoot('ajax-page/o-nas'),
		2: getRoot('ajax-page/oferta'),
		3: getRoot('ajax-page/kontakt')
	};
	
	if (item == currentPage) {
		return;
	}
	
	if (mapping[item] == undefined) {
		return;
	}
	
	currentPage = item;
	$('.loader').show();
	
	jQuery.ajax({
		dataType: 'html',
		url: mapping[item],
		success: function(data) {
			$('.loader').hide();
			
			if (currentPage == 2) {
				$('#page').css('margin-left','-42px');
			} else {
				$('#page').css('margin-left','0px');
			}
			
			$('#page').html(data);
		}
	});
}