code à ajouter dans le fichier php du dossier hooks


        /* if this is the print preview, don't modify the detail view*/
		if(isset($_REQUEST['dvprint_x'])) return;
		
		ob_start(); ?>

			<script>
				$j(function() {
					<?php if($selectedID){ ?>
					$j('#resume_dv_action_buttons .btn-toolbar').append(
						'<div class="btn-group-vertical btn-group-lg" style="width: 100%;">' +
						'<button type="button" class="btn btn-default btn-lg" onclick="print_invoice()">' +
						'<i class="glyphicon glyphicon-print"></i> Imprimer</button>' +
						'</div>'
					);
					<?php } ?>
				});

				function print_invoice() {
					var selectedID = '<?php echo urlencode($selectedID); ?>';
					window.location = 'resume_invoice.php?idresume=' + selectedID;
				}

			</script>

		<?php
			$form_code = ob_get_contents();
			ob_end_clean();
			
			$html .= $form_code;