W3speedster After Optimization

Function: w3SpeedsterAfterOptimization
Description: W3Speedster allows you to make changes to the HTML on your site after the page is optimized by the plugin. For instance replace or add in html.
Parameter: $html – full html of the page.
Return: 1 – Reflect the changes done in html of the page.

function w3SpeedsterAfterOptimization($html){
$html = str_replace(array('image.png'),array('image-100x100.png'), $html);
return $html;
}