var firstCheck = true;
	function checkSearchField() {
		if(firstCheck) {
			firstCheck = false;
			$('search_field').value = '';
		}
		$('search_field').setStyle({width: '127px'});
		$('search_button').show();
	}

	function uncheckSearchField() {
		$('search_field').setStyle({width: '157px'});
		$('search_button').hide();
	}

	function newsletter_subscribe(emailAddr) {
		newsletter_action(emailAddr, 'subscribe');
	}

	function newsletter_unsubscribe(emailAddr) {
		newsletter_action(emailAddr, 'unsubscribe');
	}

	function newsletter_action(emailAddr, action) {
		$('newsletter_loading').show();
		new Ajax.Request('/newsletter.php', {
			method: 'post',
			parameters: { 'email': emailAddr, 'action': action },
			onSuccess: function(transport) {
				$('newsletter_loading').hide();
				$('newsletter_email').value = '';
				alert(transport.responseText);
			}
		});
	}