Practice Example in JavaScript
Light on off in JavaScript
<html>
<head>
<title>Untitled Document</title>
<script>
var x=0;
function light()
{
if(x==0)
{
document.getElementById("offlight").src="on-light.jpg";
document.getElementById("off").src="on.jpg";
x=1;
}
else
{
document.getElementById("offlight").src="off-light.jpg";
document.getElementById("off").src="off1.png";
x=0;
}
}
</script>
</head>
<body>
<img src="off-light.jpg" id="offlight">
<img src="off1.png" id="off" onClick="light()">
</body>
</html>
Output:
