This is the image preview using the "FileReader" class. It is a jQuery plugin.
<script type="text/javascript" src="http://code.jquery.com/jquery-2.1.4.min.js"></script>
<script type="text/javascript" src="../src/imagepreview.js"></script>
$(function() {
$('#preview1').imagepreview({
input: '[name="testimage1"]',
reset: '#reset1',
preview: '#preview1'
});
});
<body>
<input type="file" name="testimage1" />
<input type="button" id="reset1" value="reset1" />
<div id="preview1"></div>
</body>
Masayuki Yoshii (Levely)