<html>
<head>
<script>
function displayResult()
{
document.getElementById("p1").style.color="#ff0000";
document.getElementById("p2").style.color="magenta";
}
</script>
</head>
<body>
<p id="p1">This is an example paragraph.</p>
<p id="p2">This is also an example paragraph.</p>
<br>
<input type="button" onclick="displayResult()" value="Change text color">
</body>
</html>