Can you guys plz tell me how I can change this image into clickable image? Actually it's a call to action HTML code, when someone clicks the button then image is shown, but I want to show clickable Image. How can I do that?
<!DOCTYPE HTML>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
<title>Tesco JSONP</title>
<script type="text/javascript">
function picture(){
var pic = "http://img.tesco.com/Groceries/pi/118/5000175411118/IDShot_90x90.jpg"
document.getElementById('bigpic').src = pic.replace('90x90', '225x225');
document.getElementById('bigpic').style.display='block';
}
</script>
</head>
<body>
<img id="bigpic" src="bigpic" style="display:none;" />
<button onclick="picture()">Enlarge</button>
</body>
</html>