Write a JavaScript program for calling child window js function in frame.
<html>
<head>
<title>Calling child window JS function</title>
</head>
<frameset rows="*, *">
<frame src="webpage1.html" name="topPage"/>
<frame src="webpage2.html" name="bottomPage"/>
</frameset>
</html>
<html>
<head>
<title>Webpage 1</title>
<script>
function changeMe()
{
document.getElementById('panel').innerHTML = 'I am called from webpage2'
}
</script>
</head>
<body>
<input type="button" value="Webpage 1" />
<p id="panel"></p>
</body>
</html>
<html>
<head>
<title>Webpage 2</title>
</head>
<body>
<input type="button" value="Webpage 2" onclick="parent.topPage.changeMe()" name="btn"/>
</body>
</html>
