Reference 1st : https://www.youtube.com/watch?v=XTao_pQALLg
code in post-text of "FILE BROWSER" :
<canvas id="image-preview" width="100" height="50" style="border:1px solid #000000;">
Dynamic Action of "File Browser": CHANGE AND JAVA SCRIPT CODE :
try {
var canvus =$x('image-preview');
var ctx = canvus.getContext('2d');
var...