$(function() {
	var pop = '';
	var nas = '';
	$('.poprzedni').each(function() 
	{
		pop = $(this).attr('href') ;
	});
	
	$('.nastepny').each(function() 
	{
		nas = $(this).attr('href') ;
	});
	
	
	document.onkeypress = document.onkeydown = function(e)
	{
		if (! e) e = event;
	//for (key in arrows)
	{	
		if (pop!='' && 37 == e.keyCode) window.top.location.href = pop;
		if (nas!='' && 39 == e.keyCode) window.top.location.href = nas;
	}
	}

});