form.addHeader("graphic", new FormHeader(I18N.t("Graphic"), "graphic").setColumn(4).setCollapsed(true));
// add select
FormComboBox gS = new FormComboBox(I18N.t("Typ"), new String[] { "1", "0" }, new String[] { "Tile", "Character" });
gS.selectField(RubyHelper.toInt(graph.getInstanceVariable("@tile_id")) == 0 ? "1" : "0");
form.addElement("graphic.typ", gS.setSorting(-2));
// add tile
form.addElement("graphic.tile",
FormHelper.setEnabeldWhenRightElementSelect(gS, RubyForm.getNumber(I18N.t("Tile"), graph, "@tile_id").setSorting(-1), "1"));