Just catch the submit event and prevent that, then do ajax
$(document).ready(function () {
$('#myform').on('submit', function(e) {
e.preventDefault();
$.ajax({
url : $(this).attr('action') || window.location.pathname,
type: "GET",
data: $(this).serialize(),
success: function (data) {
$("#form_output").html(data);
},
error: function (jXHR, textStatus, errorThrown) {
alert(errorThrown);
}
});
});
});