<!DOCTYPE html>
<html>
<head>
<script type='text/javascript'>
window.onload=function(){
document.querySelector("#right").addEventListener("click", funcRight);
function funcRight() {
var month = document.getElementsByTagName("h4").item(0);
if (month.innerHTML == "August 2014"){
month.innerHTML="September 2014";
} else if (month.innerHTML == "September 2014"){
month.innerHTML="October 2014";
}
}
}
</script>
</head>
<body>
<h4 align="center">August 2014</h4>
<p id="right">next</p>
</body>
</html>
The code above is rendered as follows:
【paragraph】
