While merging files to 1.3.6, i noticed a change in html_output.php that I cannot figure out where it came from. None of the mods reference this file, and the change i see didn't exist in original 1.3.5 or 1.3.6. I'm not proficient in php yet so I can't quite understand/read it. Maybe one of the guys who helped me last made this change, but I'd like to understand what these two lines of code mean.

File: \includes\functions\html_output.php

Line 276 in the 1.3.6 version originally had this:

$image_submit .= ' />';

But my version of the file has this in its place:

list($width, $height, $type, $attr) = getimagesize (zen_output_string($template->get_template_dir($image, DIR_WS_TEMPLATE, $current_page_base, 'buttons/' . $_SESSION['language'] . '/') . $image));
$image_submit .= ' style="width:' .$width .'px; height:'. $height .'px; border:0px" />';



Any idea what this code is trying to accomplish?