I figured this would be useful to some people who are building Joomla! 1.5 components and need a dropdown select box with all the countries and their respective ISO codes. Click the title to get the code.
function countries( $name = '', $selected = '' )
{
$countries = array();
$countries[] = JHTML::_('select.option', '', '- '. JText::_( 'Select a Country' ) .' -' );
$countries[] = JHTML::_('select.option', 'US', 'United States' );
$countries[] = JHTML::_('select.option', 'CA', 'Canada' );
$countries[] = JHTML::_('select.option', '', '----------' );
$countries[] = JHTML::_('select.option', 'AF', 'Afghanistan' );
$countries[] = JHTML::_('select.option', 'AL', 'Albania' );
$countries[] = JHTML::_('select.option', 'DZ', 'Algeria' );
$countries[] = JHTML::_('select.option', 'AS', 'American Samoa' );
$countries[] = JHTML::_('select.option', 'AD', 'Andorra' );
$countries[] = JHTML::_('select.option', 'AO', 'Angola' );
$countries[] = JHTML::_('select.option', 'AI', 'Anguilla' );
$countries[] = JHTML::_('select.option', 'AQ', 'Antarctica' );
$countries[] = JHTML::_('select.option', 'AG', 'Antigua and Barbuda' );
$countries[] = JHTML::_('select.option', 'AR', 'Argentina' );
$countries[] = JHTML::_('select.option', 'AM', 'Armenia' );
$countries[] = JHTML::_('select.option', 'AW', 'Aruba' );
$countries[] = JHTML::_('select.option', 'AU', 'Australia' );
$countries[] = JHTML::_('select.option', 'AT', 'Austria' );
$countries[] = JHTML::_('select.option', 'AZ', 'Azerbaidjan' );
$countries[] = JHTML::_('select.option', 'BS', 'Bahamas' );
$countries[] = JHTML::_('select.option', 'BH', 'Bahrain' );
$countries[] = JHTML::_('select.option', 'BD', 'Bangladesh' );
$countries[] = JHTML::_('select.option', 'BB', 'Barbados' );
$countries[] = JHTML::_('select.option', 'BY', 'Belarus' );
$countries[] = JHTML::_('select.option', 'BE', 'Belgium' );
$countries[] = JHTML::_('select.option', 'BZ', 'Belize' );
$countries[] = JHTML::_('select.option', 'BJ', 'Benin' );
$countries[] = JHTML::_('select.option', 'BM', 'Bermuda' );
$countries[] = JHTML::_('select.option', 'BT', 'Bhutan' );
$countries[] = JHTML::_('select.option', 'BO', 'Bolivia' );
$countries[] = JHTML::_('select.option', 'BA', 'Bosnia-Herzegovina' );
$countries[] = JHTML::_('select.option', 'BW', 'Botswana' );
$countries[] = JHTML::_('select.option', 'BV', 'Bouvet Island' );
$countries[] = JHTML::_('select.option', 'BR', 'Brazil' );
$countries[] = JHTML::_('select.option', 'IO', 'British Indian Ocean Territory' );
$countries[] = JHTML::_('select.option', 'BN', 'Brunei Darussalam' );
$countries[] = JHTML::_('select.option', 'BG', 'Bulgaria' );
$countries[] = JHTML::_('select.option', 'BF', 'Burkina Faso' );
$countries[] = JHTML::_('select.option', 'BI', 'Burundi' );
$countries[] = JHTML::_('select.option', 'KH', 'Cambodia' );
$countries[] = JHTML::_('select.option', 'CM', 'Cameroon' );
$countries[] = JHTML::_('select.option', 'CV', 'Cape Verde' );
$countries[] = JHTML::_('select.option', 'KY', 'Cayman Islands' );
$countries[] = JHTML::_('select.option', 'CF', 'Central African Republic' );
$countries[] = JHTML::_('select.option', 'TD', 'Chad' );
$countries[] = JHTML::_('select.option', 'CL', 'Chile' );
$countries[] = JHTML::_('select.option', 'CN', 'China' );
$countries[] = JHTML::_('select.option', 'CX', 'Christmas Island' );
$countries[] = JHTML::_('select.option', 'CC', 'Cocos (Keeling) Islands' );
$countries[] = JHTML::_('select.option', 'CO', 'Colombia' );
$countries[] = JHTML::_('select.option', 'KM', 'Comoros' );
$countries[] = JHTML::_('select.option', 'CG', 'Congo' );
$countries[] = JHTML::_('select.option', 'CK', 'Cook Islands' );
$countries[] = JHTML::_('select.option', 'CR', 'Costa Rica' );
$countries[] = JHTML::_('select.option', 'HR', 'Croatia' );
$countries[] = JHTML::_('select.option', 'CU', 'Cuba' );
$countries[] = JHTML::_('select.option', 'CY', 'Cyprus' );
$countries[] = JHTML::_('select.option', 'CZ', 'Czech Republic' );
$countries[] = JHTML::_('select.option', 'DK', 'Denmark' );
$countries[] = JHTML::_('select.option', 'DJ', 'Djibouti' );
$countries[] = JHTML::_('select.option', 'DM', 'Dominica' );
$countries[] = JHTML::_('select.option', 'DO', 'Dominican Republic' );
$countries[] = JHTML::_('select.option', 'TP', 'East Timor' );
$countries[] = JHTML::_('select.option', 'EC', 'Ecuador' );
$countries[] = JHTML::_('select.option', 'EG', 'Egypt' );
$countries[] = JHTML::_('select.option', 'SV', 'El Salvador' );
$countries[] = JHTML::_('select.option', 'GQ', 'Equatorial Guinea' );
$countries[] = JHTML::_('select.option', 'ER', 'Eritrea' );
$countries[] = JHTML::_('select.option', 'EE', 'Estonia' );
$countries[] = JHTML::_('select.option', 'ET', 'Ethiopia' );
$countries[] = JHTML::_('select.option', 'FK', 'Falkland Islands' );
$countries[] = JHTML::_('select.option', 'FO', 'Faroe Islands' );
$countries[] = JHTML::_('select.option', 'FJ', 'Fiji' );
$countries[] = JHTML::_('select.option', 'FI', 'Finland' );
$countries[] = JHTML::_('select.option', 'CS', 'Former Czechoslovakia' );
$countries[] = JHTML::_('select.option', 'SU', 'Former USSR' );
$countries[] = JHTML::_('select.option', 'FR', 'France' );
$countries[] = JHTML::_('select.option', 'FX', 'France (European Territory)' );
$countries[] = JHTML::_('select.option', 'GF', 'French Guyana' );
$countries[] = JHTML::_('select.option', 'TF', 'French Southern Territories' );
$countries[] = JHTML::_('select.option', 'GA', 'Gabon' );
$countries[] = JHTML::_('select.option', 'GM', 'Gambia' );
$countries[] = JHTML::_('select.option', 'GE', 'Georgia' );
$countries[] = JHTML::_('select.option', 'DE', 'Germany' );
$countries[] = JHTML::_('select.option', 'GH', 'Ghana' );
$countries[] = JHTML::_('select.option', 'GI', 'Gibraltar' );
$countries[] = JHTML::_('select.option', 'GB', 'Great Britain' );
$countries[] = JHTML::_('select.option', 'GR', 'Greece' );
$countries[] = JHTML::_('select.option', 'GL', 'Greenland' );
$countries[] = JHTML::_('select.option', 'GD', 'Grenada' );
$countries[] = JHTML::_('select.option', 'GP', 'Guadeloupe (French)' );
$countries[] = JHTML::_('select.option', 'GU', 'Guam (USA)' );
$countries[] = JHTML::_('select.option', 'GT', 'Guatemala' );
$countries[] = JHTML::_('select.option', 'GN', 'Guinea' );
$countries[] = JHTML::_('select.option', 'GW', 'Guinea Bissau' );
$countries[] = JHTML::_('select.option', 'GY', 'Guyana' );
$countries[] = JHTML::_('select.option', 'HT', 'Haiti' );
$countries[] = JHTML::_('select.option', 'HM', 'Heard and McDonald Islands' );
$countries[] = JHTML::_('select.option', 'HN', 'Honduras' );
$countries[] = JHTML::_('select.option', 'HK', 'Hong Kong' );
$countries[] = JHTML::_('select.option', 'HU', 'Hungary' );
$countries[] = JHTML::_('select.option', 'IS', 'Iceland' );
$countries[] = JHTML::_('select.option', 'IN', 'India' );
$countries[] = JHTML::_('select.option', 'ID', 'Indonesia' );
$countries[] = JHTML::_('select.option', 'INT', 'International' );
$countries[] = JHTML::_('select.option', 'IR', 'Iran' );
$countries[] = JHTML::_('select.option', 'IQ', 'Iraq' );
$countries[] = JHTML::_('select.option', 'IE', 'Ireland' );
$countries[] = JHTML::_('select.option', 'IL', 'Israel' );
$countries[] = JHTML::_('select.option', 'IT', 'Italy' );
$countries[] = JHTML::_('select.option', 'CI', 'Ivory Coast (Cote D'Ivoire)' );
$countries[] = JHTML::_('select.option', 'JM', 'Jamaica' );
$countries[] = JHTML::_('select.option', 'JP', 'Japan' );
$countries[] = JHTML::_('select.option', 'JO', 'Jordan' );
$countries[] = JHTML::_('select.option', 'KZ', 'Kazakhstan' );
$countries[] = JHTML::_('select.option', 'KE', 'Kenya' );
$countries[] = JHTML::_('select.option', 'KI', 'Kiribati' );
$countries[] = JHTML::_('select.option', 'KW', 'Kuwait' );
$countries[] = JHTML::_('select.option', 'KG', 'Kyrgyzstan' );
$countries[] = JHTML::_('select.option', 'LA', 'Laos' );
$countries[] = JHTML::_('select.option', 'LV', 'Latvia' );
$countries[] = JHTML::_('select.option', 'LB', 'Lebanon' );
$countries[] = JHTML::_('select.option', 'LS', 'Lesotho' );
$countries[] = JHTML::_('select.option', 'LR', 'Liberia' );
$countries[] = JHTML::_('select.option', 'LY', 'Libya' );
$countries[] = JHTML::_('select.option', 'LI', 'Liechtenstein' );
$countries[] = JHTML::_('select.option', 'LT', 'Lithuania' );
$countries[] = JHTML::_('select.option', 'LU', 'Luxembourg' );
$countries[] = JHTML::_('select.option', 'MO', 'Macau' );
$countries[] = JHTML::_('select.option', 'MK', 'Macedonia' );
$countries[] = JHTML::_('select.option', 'MG', 'Madagascar' );
$countries[] = JHTML::_('select.option', 'MW', 'Malawi' );
$countries[] = JHTML::_('select.option', 'MY', 'Malaysia' );
$countries[] = JHTML::_('select.option', 'MV', 'Maldives' );
$countries[] = JHTML::_('select.option', 'ML', 'Mali' );
$countries[] = JHTML::_('select.option', 'MT', 'Malta' );
$countries[] = JHTML::_('select.option', 'MH', 'Marshall Islands' );
$countries[] = JHTML::_('select.option', 'MQ', 'Martinique (French)' );
$countries[] = JHTML::_('select.option', 'MR', 'Mauritania' );
$countries[] = JHTML::_('select.option', 'MU', 'Mauritius' );
$countries[] = JHTML::_('select.option', 'YT', 'Mayotte' );
$countries[] = JHTML::_('select.option', 'MX', 'Mexico' );
$countries[] = JHTML::_('select.option', 'FM', 'Micronesia' );
$countries[] = JHTML::_('select.option', 'MD', 'Moldavia' );
$countries[] = JHTML::_('select.option', 'MC', 'Monaco' );
$countries[] = JHTML::_('select.option', 'MN', 'Mongolia' );
$countries[] = JHTML::_('select.option', 'MS', 'Montserrat' );
$countries[] = JHTML::_('select.option', 'MA', 'Morocco' );
$countries[] = JHTML::_('select.option', 'MZ', 'Mozambique' );
$countries[] = JHTML::_('select.option', 'MM', 'Myanmar' );
$countries[] = JHTML::_('select.option', 'NA', 'Namibia' );
$countries[] = JHTML::_('select.option', 'NR', 'Nauru' );
$countries[] = JHTML::_('select.option', 'NP', 'Nepal' );
$countries[] = JHTML::_('select.option', 'NL', 'Netherlands' );
$countries[] = JHTML::_('select.option', 'AN', 'Netherlands Antilles' );
$countries[] = JHTML::_('select.option', 'NT', 'Neutral Zone' );
$countries[] = JHTML::_('select.option', 'NC', 'New Caledonia (French)' );
$countries[] = JHTML::_('select.option', 'NZ', 'New Zealand' );
$countries[] = JHTML::_('select.option', 'NI', 'Nicaragua' );
$countries[] = JHTML::_('select.option', 'NE', 'Niger' );
$countries[] = JHTML::_('select.option', 'NG', 'Nigeria' );
$countries[] = JHTML::_('select.option', 'NU', 'Niue' );
$countries[] = JHTML::_('select.option', 'NF', 'Norfolk Island' );
$countries[] = JHTML::_('select.option', 'KP', 'North Korea' );
$countries[] = JHTML::_('select.option', 'MP', 'Northern Mariana Islands' );
$countries[] = JHTML::_('select.option', 'NO', 'Norway' );
$countries[] = JHTML::_('select.option', 'OM', 'Oman' );
$countries[] = JHTML::_('select.option', 'PK', 'Pakistan' );
$countries[] = JHTML::_('select.option', 'PW', 'Palau' );
$countries[] = JHTML::_('select.option', 'PA', 'Panama' );
$countries[] = JHTML::_('select.option', 'PG', 'Papua New Guinea' );
$countries[] = JHTML::_('select.option', 'PY', 'Paraguay' );
$countries[] = JHTML::_('select.option', 'PE', 'Peru' );
$countries[] = JHTML::_('select.option', 'PH', 'Philippines' );
$countries[] = JHTML::_('select.option', 'PN', 'Pitcairn Island' );
$countries[] = JHTML::_('select.option', 'PL', 'Poland' );
$countries[] = JHTML::_('select.option', 'PF', 'Polynesia (French)' );
$countries[] = JHTML::_('select.option', 'PT', 'Portugal' );
$countries[] = JHTML::_('select.option', 'PR', 'Puerto Rico' );
$countries[] = JHTML::_('select.option', 'QA', 'Qatar' );
$countries[] = JHTML::_('select.option', 'RE', 'Reunion (French)' );
$countries[] = JHTML::_('select.option', 'RO', 'Romania' );
$countries[] = JHTML::_('select.option', 'RU', 'Russian Federation' );
$countries[] = JHTML::_('select.option', 'RW', 'Rwanda' );
$countries[] = JHTML::_('select.option', 'GS', 'S. Georgia & S. Sandwich Isls.' );
$countries[] = JHTML::_('select.option', 'SH', 'Saint Helena' );
$countries[] = JHTML::_('select.option', 'KN', 'Saint Kitts & Nevis Anguilla' );
$countries[] = JHTML::_('select.option', 'LC', 'Saint Lucia' );
$countries[] = JHTML::_('select.option', 'PM', 'Saint Pierre and Miquelon' );
$countries[] = JHTML::_('select.option', 'ST', 'Saint Tome (Sao Tome) and Principe' );
$countries[] = JHTML::_('select.option', 'VC', 'Saint Vincent & Grenadines' );
$countries[] = JHTML::_('select.option', 'WS', 'Samoa' );
$countries[] = JHTML::_('select.option', 'SM', 'San Marino' );
$countries[] = JHTML::_('select.option', 'SA', 'Saudi Arabia' );
$countries[] = JHTML::_('select.option', 'SN', 'Senegal' );
$countries[] = JHTML::_('select.option', 'SC', 'Seychelles' );
$countries[] = JHTML::_('select.option', 'SL', 'Sierra Leone' );
$countries[] = JHTML::_('select.option', 'SG', 'Singapore' );
$countries[] = JHTML::_('select.option', 'SK', 'Slovak Republic' );
$countries[] = JHTML::_('select.option', 'SI', 'Slovenia' );
$countries[] = JHTML::_('select.option', 'SB', 'Solomon Islands' );
$countries[] = JHTML::_('select.option', 'SO', 'Somalia' );
$countries[] = JHTML::_('select.option', 'ZA', 'South Africa' );
$countries[] = JHTML::_('select.option', 'KR', 'South Korea' );
$countries[] = JHTML::_('select.option', 'ES', 'Spain' );
$countries[] = JHTML::_('select.option', 'LK', 'Sri Lanka' );
$countries[] = JHTML::_('select.option', 'SD', 'Sudan' );
$countries[] = JHTML::_('select.option', 'SR', 'Suriname' );
$countries[] = JHTML::_('select.option', 'SJ', 'Svalbard and Jan Mayen Islands' );
$countries[] = JHTML::_('select.option', 'SZ', 'Swaziland' );
$countries[] = JHTML::_('select.option', 'SE', 'Sweden' );
$countries[] = JHTML::_('select.option', 'CH', 'Switzerland' );
$countries[] = JHTML::_('select.option', 'SY', 'Syria' );
$countries[] = JHTML::_('select.option', 'TJ', 'Tadjikistan' );
$countries[] = JHTML::_('select.option', 'TW', 'Taiwan' );
$countries[] = JHTML::_('select.option', 'TZ', 'Tanzania' );
$countries[] = JHTML::_('select.option', 'TH', 'Thailand' );
$countries[] = JHTML::_('select.option', 'TG', 'Togo' );
$countries[] = JHTML::_('select.option', 'TK', 'Tokelau' );
$countries[] = JHTML::_('select.option', 'TO', 'Tonga' );
$countries[] = JHTML::_('select.option', 'TT', 'Trinidad and Tobago' );
$countries[] = JHTML::_('select.option', 'TN', 'Tunisia' );
$countries[] = JHTML::_('select.option', 'TR', 'Turkey' );
$countries[] = JHTML::_('select.option', 'TM', 'Turkmenistan' );
$countries[] = JHTML::_('select.option', 'TC', 'Turks and Caicos Islands' );
$countries[] = JHTML::_('select.option', 'TV', 'Tuvalu' );
$countries[] = JHTML::_('select.option', 'UG', 'Uganda' );
$countries[] = JHTML::_('select.option', 'UA', 'Ukraine' );
$countries[] = JHTML::_('select.option', 'AE', 'United Arab Emirates' );
$countries[] = JHTML::_('select.option', 'GB', 'United Kingdom' );
$countries[] = JHTML::_('select.option', 'UY', 'Uruguay' );
$countries[] = JHTML::_('select.option', 'MIL', 'USA Military' );
$countries[] = JHTML::_('select.option', 'UM', 'USA Minor Outlying Islands' );
$countries[] = JHTML::_('select.option', 'UZ', 'Uzbekistan' );
$countries[] = JHTML::_('select.option', 'VU', 'Vanuatu' );
$countries[] = JHTML::_('select.option', 'VA', 'Vatican City State' );
$countries[] = JHTML::_('select.option', 'VE', 'Venezuela' );
$countries[] = JHTML::_('select.option', 'VN', 'Vietnam' );
$countries[] = JHTML::_('select.option', 'VG', 'Virgin Islands (British)' );
$countries[] = JHTML::_('select.option', 'VI', 'Virgin Islands (USA)' );
$countries[] = JHTML::_('select.option', 'WF', 'Wallis and Futuna Islands' );
$countries[] = JHTML::_('select.option', 'EH', 'Western Sahara' );
$countries[] = JHTML::_('select.option', 'YE', 'Yemen' );
$countries[] = JHTML::_('select.option', 'YU', 'Yugoslavia' );
$countries[] = JHTML::_('select.option', 'ZR', 'Zaire' );
$countries[] = JHTML::_('select.option', 'ZM', 'Zambia' );
$countries[] = JHTML::_('select.option', 'ZW', 'Zimbabwe' );
return JHTML::_('select.genericlist', $countries, $name, 'class="inputbox" size="1" ', 'value', 'text', $selected );
}