gitlabhq/app/views/team_members/new.js.haml

-#$("#new-member-holder").empty();
-#$("#new-member-holder").append("#{escape_javascript(render('form'))}");
:plain
  var new_tm_dialog = $("<div id='new_tm_dialog'></div>");
  new_tm_dialog.html("#{escape_javascript(render('form'))}");
  $(new_tm_dialog).dialog({
    width: 350,
    resizable: false,
    draggable: false,
    title: "Add new member to project team",
    close: function(event, ui) { $("#new_tm_dialog").remove();},
    modal: true

  });
  $('select#team_member_user_id').chosen();