function hideNewMsg(el) {
	el.setStyle('visibility', 'hidden');
}

function showNewMsg(el) {
	el.setStyle('visibility', 'visible');
}

function toggleNewMsg() {
	$$('.fnewrep').each(function(el) {
		if(el.getStyle('visibility') == 'hidden') showNewMsg(el);
		else hideNewMsg(el);
	});
}

window.addEvent('domready', function() {
	$$('.topic_line').each(function(el) {
		el.set('rel', el.getStyle('background-color'));
		el.addEvent('mouseover', function() {
			el.setStyle('background-color', '#eee');
		});
		
		el.addEvent('mouseout', function() {
			el.setStyle('background-color', el.get('rel'));
		});
	});
	
	toggleNewMsg.periodical(750);
});

function delete_topic(id) {
	if(confirm("Êtes-vous sûre de vouloir supprimer ce topic?")) {
		$('form_topic_'+id).submit();
	}
}