function $newsletter() {
				var newsletter = $('#newsletter-window').css('display');
				if(newsletter == 'none') $('#newsletter-window').fadeIn();
				else $('#newsletter-window').fadeOut();
			}
			function $validate() {
				var email = document.newsletter.email.value;
				if(email == '') { alert('Wpisz email'); return false; }
				if(email == 'adres email') { alert('Wpisz email'); return false; }			
				var reg = /^[a-zA-Z0-9._-]+@([a-zA-Z0-9.-]+\.)+[a-zA-Z0-9.-]{2,4}$/;
  				if(!reg.test(email)) { alert('Wpisz email'); return false; }				
			}