JS Bin// source http://jsbin.com/qevigu
function changeTheText(){
//Change the paragraph text
document.getElementById('paragraphText2').innerHTML = 'we changed the text';
}
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>JS Bin</title>
</head>
<body>
<p id='paragraphText'>This is awesome</p>
<p id='paragraphText2'>This is awesome</p>
<button onclick='changeTheText()'>Change the text</button>
<script id="jsbin-javascript">
function changeTheText(){
//Change the paragraph text
document.getElementById('paragraphText2').innerHTML = 'we changed the text';
}
</script>
<script id="jsbin-source-javascript" type="text/javascript">function changeTheText(){
//Change the paragraph text
document.getElementById('paragraphText2').innerHTML = 'we changed the text';
}</script></body>
</html>