$(document).ready(function(){$('#bouton_previs').click(function(){var submit_page='includes/previsualisation.inc.php';var description=$("#description");$.ajax({url:submit_page,type:'POST',data:'description='+description.val(),error:function(){alert('Erreur du serveur !')},success:function(data){$("#previs").replaceWith('<div id="previs"style="text-align:left;">'+data+'</div>')}})})});