Reference : Automatically Replacing an Image on an HTML Page When it is Not Found - CodeProject
<div>
<img src="error.jpg" onerror="replaceImage(this, 'replacement.jpg');"
title="This image is replaced on an error"/>
</div>
<script type="text/javascript">
function replaceImage(image, replacementUrl){
image.removeAttribute("onerror");
image.src=replacementUrl;
}
</script>