int vgap = (int) (Display.getHeight() - 120) / 2;
int x1= hgap;
int x2= x1 + 120 + hgap;
int y = (int) (vgap * 0.75);
MsbConfig sc_btn_config = new MsbConfig();
MsbState sc_btn_state = new MsbState(Constants.SC_BTN_STATE, "Emulate Smart Card", "Emulate Smart Card");
sc_btn_state.setbmp_focused(sc_focused);
sc_btn_state.setbmp_unfocused(sc_unfocused);
sc_btn_state.setbmp_clicked(sc_clicked);
sc_btn_state.setbmp_unclicked(sc_focused);
sc_btn_config.addState(sc_btn_state);
msbf_sc = new MultiStateButtonField(sc_btn_config, new EmulateScCommand(), 0, Field.FIELD_HCENTER);
btn_row.add(msbf_sc,x1,y);
MsbConfig sr_btn_config = new MsbConfig();
MsbState sr_btn_state = new MsbState(Constants.SR_BTN_STATE, "Emulate Reader", "Emulate Reader");
sr_btn_state.setbmp_focused(sr_focused);
sr_btn_state.setbmp_unfocused(sr_unfocused);
sr_btn_state.setbmp_clicked(sr_clicked);
sr_btn_state.setbmp_unclicked(sr_focused);
sr_btn_config.addState(sr_btn_state);
msbf_sr = new MultiStateButtonField(sr_btn_config, new EmulateSrCommand(), 0, Field.FIELD_HCENTER);
btn_row.add(msbf_sr,x2,y);
msbf_sc.setFocusListener(focus_listener);
msbf_sr.setFocusListener(focus_listener);