window.addEvent('domready', function() {
	
	var dept_fx = new Fx.Morph($('errorRecherche'), {
			     duration:500, 
			     transition: Fx.Transitions.Quad.easeOut, 
			     wait:false
	});
	
	$('homeRecherche').addEvent('submit', function(event) {  
		event.stop();
		if($('departement_id').value == '') {
			$('errorRecherche').set('html','Veuillez sélectionner un département');
			dept_fx.start({
				'display': 'block'
				});
		} else {
			$('homeRecherche').submit();
		}
	});

});