Opening dialog causing input to lost focus

Having form with focused text element and calling .dialog() to display message about loading autocomplete cause input to lost focus (same result with modal true or false)

				$oDiv.dialog({
					title: oM.title,
					height: 70,
					modal: oM.modal,
					resizable: false,
					close: function(event, ui) {
						if ($ajax)
							$ajax.abort();
					}
				});