var currentPopup = null;


function printArticle() {
	window.print();
}

function openPopup(id, content) {
	if (content != null)
		$(id).innerHTML = content;
	if (currentPopup != null && currentPopup != id)
		closePopup(currentPopup);
	currentPopup = id;
	$(id).style.display = 'block';
}

function closePopup(id) {
	var el = $(id);
	if (el != null) {
		el.style.display = 'none';
		el.innerHTML = '';
	}
}

function closeAllPopups() {
	closePopup(currentPopup);
}

function showPopupMessage(id, message) {
	openPopup(id, '<div class="pleasewaitmessage">' + message + '</div>');
}