index.html

<!DOCTYPE html>

<html lang = "pt-br">
	<head> 
		<meta charset="UTF-8"/>
	</head>

	<body>
		<p id = "ptbr" onclick="changeColorBR()">
			(PT-BR) Olá mundo, <br/>

				este programa mudará as cores, se duvida, clique em mim para ver! 
		</p>

		<br/><br/>

		<p id="eng" onclick="changeColorEn()">
			(ENG) Hello World,<br/>

				this program will change colors, if you doubt it, click me to see!

		</p>

		<script type="text/javascript" src="script.js"></script>
	</body>

</html>