Integrate country in Advanced Guestbook 2.3.1

Hi, instead of typing your country I want to integrate something like that
in the code but I cannot figure how...

Any idea ??

<? if ($pays==""){$pays="France";} ?>
	   <SELECT NAME=pays>
<OPTION VALUE=<? echo $pays; ?> SELECTED><? echo $pays; ?>
<OPTION VALUE=Afghanistan>Afghanistan
<OPTION VALUE=Albanie>Albanie
<OPTION VALUE=Algerie>Algerie
<OPTION VALUE=Andorre>Andorre
<OPTION VALUE=Angola>Angola
<OPTION VALUE=Anguilla>Anguilla
<OPTION VALUE=Antarctique>Antarctique
<OPTION VALUE=Argentine>Argentine
<OPTION VALUE=Armenie>Armenie
<OPTION VALUE=Aruba>Aruba
<OPTION VALUE=Australie>Australie
<OPTION VALUE=Autriche>Autriche
<OPTION VALUE=Azerbaijan>Azerbaijan
<OPTION VALUE=Bahamas>Bahamas
<OPTION VALUE=Bahrain>Bahrain
<OPTION VALUE=Bengladesh>Bengladesh
<OPTION VALUE=Barbade>Barbade
<OPTION VALUE=Bielarussie>Bielarussie
<OPTION VALUE=Belgique>Belgique
<OPTION VALUE=Belize>Belize
<OPTION VALUE=Benin>Benin
<OPTION VALUE=Bermudes>Bermudes
<OPTION VALUE=Bhutan>Bhutan
<OPTION VALUE=Bolivie>Bolivie
<OPTION VALUE=Botswhana>Botswhana
<OPTION VALUE="Bouvet_island">Bouvet_island
<OPTION VALUE=Bresil>Bresil
<OPTION VALUE=Bulgarie>Bulgarie
<OPTION VALUE="Burkina_faso">Burkina_faso
<OPTION VALUE=Burundi>Burundi
<OPTION VALUE=Cambodge>Cambodge
<OPTION VALUE=Cameroun>Cameroun
<OPTION VALUE=Canada>Canada
<OPTION VALUE="Cape_verde">Cape_verde
<OPTION VALUE="Cayman_islands">Cayman_islands
<OPTION VALUE=Chad>Chad
<OPTION VALUE=Chile>Chile
<OPTION VALUE=China>China
<OPTION VALUE="Christmas_island">Christmas_island
<OPTION VALUE="Cocos_(keeling)_islands">Cocos_(keeling)_islands
<OPTION VALUE=Colombia>Colombia
<OPTION VALUE=Comoros>Comoros
<OPTION VALUE=Congo>Congo
<OPTION VALUE="Cook_islands">Cook_islands
<OPTION VALUE="Costa_rica">Costa_rica
<OPTION VALUE="Cote_d'ivoire">Cote_d'ivoire
<OPTION VALUE=Croatia>Croatia
<OPTION VALUE=Cuba>Cuba
<OPTION VALUE=Cyprus>Cyprus
<OPTION VALUE="Czech_republic">Czech_republic
<OPTION VALUE=Denmark>Denmark
<OPTION VALUE=Djibouti>Djibouti
<OPTION VALUE=Dominica>Dominica
<OPTION VALUE="Dominican_republic">Dominican_republic
<OPTION VALUE="East_timor">East_timor
<OPTION VALUE=Ecuador>Ecuador
<OPTION VALUE=Egypt>Egypt
<OPTION VALUE="El_salvador">El_salvador
<OPTION VALUE="Equatorial_guinea">Equatorial_guinea
<OPTION VALUE=Eritrea>Eritrea
<OPTION VALUE=Estonia>Estonia
<OPTION VALUE=Ethiopia>Ethiopia
<OPTION VALUE="Faroe_islands">Faroe_islands
<OPTION VALUE=Fiji>Fiji
<OPTION VALUE=Finland>Finland
<OPTION VALUE=France>France
<OPTION VALUE="French_guiana">French_guiana
<OPTION VALUE="French_polynesia">French_polynesia
<OPTION VALUE="French_southern">French_southern
<OPTION VALUE=Gabon>Gabon
<OPTION VALUE=Gambia>Gambia
<OPTION VALUE=Georgia>Georgia
<OPTION VALUE=Germany>Germany
<OPTION VALUE=Ghana>Ghana
<OPTION VALUE=Gibraltar>Gibraltar
<OPTION VALUE=Greece>Greece
<OPTION VALUE=Greenland>Greenland
<OPTION VALUE=Grenada>Grenada
<OPTION VALUE=Guadeloupe>Guadeloupe
<OPTION VALUE=Guam>Guam
<OPTION VALUE=Guatemala>Guatemala
<OPTION VALUE=Guinea>Guinea
<OPTION VALUE="Guinea-bissau">Guinea-bissau
<OPTION VALUE=Guyana>Guyana
<OPTION VALUE=Haiti>Haiti
<OPTION VALUE=Honduras>Honduras
<OPTION VALUE="Hong_kong">Hong_kong
<OPTION VALUE=Hungary>Hungary
<OPTION VALUE=Iceland>Iceland
<OPTION VALUE=India>India
<OPTION VALUE=Indonesia>Indonesia
<OPTION VALUE=Iraq>Iraq
<OPTION VALUE=Ireland>Ireland
<OPTION VALUE=Israel>Israel
<OPTION VALUE=Italy>Italy
<OPTION VALUE=Jamaica>Jamaica
<OPTION VALUE=Japan>Japan
<OPTION VALUE=Jordan>Jordan
<OPTION VALUE=Kazakhstan>Kazakhstan
<OPTION VALUE=Kenya>Kenya
<OPTION VALUE=Kiribati>Kiribati
<OPTION VALUE="Korea,_republic_of">Korea,_republic_of
<OPTION VALUE=Kuwait>Kuwait
<OPTION VALUE=Kyrgyzstan>Kyrgyzstan
<OPTION VALUE=Latvia>Latvia
<OPTION VALUE=Lebanon>Lebanon
<OPTION VALUE=Lesotho>Lesotho
<OPTION VALUE=Liberia>Liberia
<OPTION VALUE=Liechtenstein>Liechtenstein
<OPTION VALUE=Lithuania>Lithuania
<OPTION VALUE=Luxembourg>Luxembourg
<OPTION VALUE=Macau>Macau
<OPTION VALUE=Madagascar>Madagascar
<OPTION VALUE=Malawi>Malawi
<OPTION VALUE=Malaysia>Malaysia
<OPTION VALUE=Maldives>Maldives
<OPTION VALUE=Mali>Mali
<OPTION VALUE=Malta>Malta
<OPTION VALUE="Marshall_islands">Marshall_islands
<OPTION VALUE=Martinique>Martinique
<OPTION VALUE=Mauritania>Mauritania
<OPTION VALUE=Mauritius>Mauritius
<OPTION VALUE=Mayotte>Mayotte
<OPTION VALUE=Mexico>Mexico
<OPTION VALUE=Monaco>Monaco
<OPTION VALUE=Mongolia>Mongolia
<OPTION VALUE=Montserrat>Montserrat
<OPTION VALUE=Morocco>Morocco
<OPTION VALUE=Mozambique>Mozambique
<OPTION VALUE=Myanmar>Myanmar
<OPTION VALUE=Namibia>Namibia
<OPTION VALUE=Nauru>Nauru
<OPTION VALUE=Nepal>Nepal
<OPTION VALUE=Netherlands>Netherlands
<OPTION VALUE="New_caledonia">New_caledonia
<OPTION VALUE="New_zealand">New_zealand
<OPTION VALUE=Nicaragua>Nicaragua
<OPTION VALUE=Niger>Niger
<OPTION VALUE=Nigeria>Nigeria
<OPTION VALUE=Niue>Niue
<OPTION VALUE="Norfolk_island">Norfolk_island
<OPTION VALUE=Norway>Norway
<OPTION VALUE=Oman>Oman
<OPTION VALUE=Pakistan>Pakistan
<OPTION VALUE=Palau>Palau
<OPTION VALUE=Panama>Panama
<OPTION VALUE="Papua_new_guinea">Papua_new_guinea
<OPTION VALUE=Paraguay>Paraguay
<OPTION VALUE=Peru>Peru
<OPTION VALUE=Philippines>Philippines
<OPTION VALUE=Pitcairn>Pitcairn
<OPTION VALUE=Poland>Poland
<OPTION VALUE=Portugal>Portugal
<OPTION VALUE="Puerto_rico">Puerto_rico
<OPTION VALUE=Qatar>Qatar
<OPTION VALUE=Reunion>Reunion
<OPTION VALUE=Romania>Romania
<OPTION VALUE="Russian_federation">Russian_federation
<OPTION VALUE=Rwanda>Rwanda
<OPTION VALUE="Saint_lucia">Saint_lucia
<OPTION VALUE=Samoa>Samoa
<OPTION VALUE="San_marino">San_marino
<OPTION VALUE="Saudi_arabia">Saudi_arabia
<OPTION VALUE=Senegal>Senegal
<OPTION VALUE=Seychelles>Seychelles
<OPTION VALUE="Sierra_leone">Sierra_leone
<OPTION VALUE=Singapore>Singapore
<OPTION VALUE=Slovakia>Slovakia
<OPTION VALUE=Slovenia>Slovenia
<OPTION VALUE="Solomon_islands">Solomon_islands
<OPTION VALUE=Somalia>Somalia
<OPTION VALUE="South_africa">South_africa
<OPTION VALUE=Spain>Spain
<OPTION VALUE="Sri_lanka">Sri_lanka
<OPTION VALUE="St._helena">St._helena
<OPTION VALUE=Sudan>Sudan
<OPTION VALUE=Suriname>Suriname
<OPTION VALUE=Swaziland>Swaziland
<OPTION VALUE=Sweden>Sweden
<OPTION VALUE=Switzerland>Switzerland
<OPTION VALUE="Syrian_arab_republic">Syrian_arab_republic
<OPTION VALUE=Taiwan>Taiwan
<OPTION VALUE=Tajikistan>Tajikistan
<OPTION VALUE=Tanzania>Tanzania
<OPTION VALUE=Thailand>Thailand
<OPTION VALUE=Togo>Togo
<OPTION VALUE=Tokelau>Tokelau
<OPTION VALUE=Tonga>Tonga
<OPTION VALUE=Tunisia>Tunisia
<OPTION VALUE=Turkey>Turkey
<OPTION VALUE=Turkmenistan>Turkmenistan
<OPTION VALUE=Tuvalu>Tuvalu
<OPTION VALUE=Uganda>Uganda
<OPTION VALUE=Ukraine>Ukraine
<OPTION VALUE="United_arab_emirates">United_arab_emirates
<OPTION VALUE="United_kingdom">United_kingdom
<OPTION VALUE="United_states">United_states
<OPTION VALUE=Uruguay>Uruguay
<OPTION VALUE=Uzbekistan>Uzbekistan
<OPTION VALUE=Vanuatu>Vanuatu
<OPTION VALUE=Venezuela>Venezuela
<OPTION VALUE="Viet_nam">Viet_nam
<OPTION VALUE="Western_sahara">Western_sahara
<OPTION VALUE=Yemen>Yemen
<OPTION VALUE=Yugoslavia>Yugoslavia
<OPTION VALUE=Zambia>Zambia
<OPTION VALUE=Zimbabwe>Zimbabwe
</SELECT>