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Just beginning to learn HTML & Javascript. I have the following code, which works. however, because I have have an img tag in my body it is trying to show a place holder for an image before I click the button. How can I stop this.
<!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');
}
</script>
</head>
<body>
<img id="bigpic" src="bigpic" />
<button onclick="picture()">Enlarge</button>
</body>
</html>
Best wishes.
880
Add style "display:none" to picture tag
<img id="bigpic" src="bigpic" style="display:none;"/>
And in function picture change it for show image
document.getElementById('bigpic').style.display='block';
There is demo: http://jsfiddle.net/eX5kx/
164
Use display property in css, try this:
javascript:
function showPicture() {
var sourceOfPicture = "http://img.tesco.com/Groceries/pi/118/5000175411118/IDShot_90x90.jpg";
var img = document.getElementById('bigpic')
img.src = sourceOfPicture.replace('90x90', '225x225');
img.style.display = "block";
}
html:
<img style="display:none;" id="bigpic" src="bigpic" />
<button onclick="showPicture()">Enlarge</button>
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