html canvas image gaussian blur with StackBlurForCanvas

http://www.quasimondo.com/StackBlurForCanvas/StackBlurDemo.html

<img src="/images/test.png" id="srcimg" />
<div id="canvasHolder">
  <canvas id="canvasx" width="500" height="375">
  </canvas>
</div>

<script type="text/javascript">
  stackBlurImage('srcimg', 'canvasx', 20, false);
</script> 

<?php use_javascript('StackBlur.js') ?>