Change textarea size in Joomla 2.5

The textarea size in the Article Manager's TinyMCE editor of Joomla 2.5 is annoyingly small, especially for people used to the larger editable area that was available in Joomla 1.5.
You can change the height of this by clicking on the diagonal lined area at the bottom right hand corner and dragging up and down, but the size will reset after each session has ended. Here's how you can hardcode a height size of your choice...
Edit the file found in... plugins/editors/tinymce/tinymce.php
Then change line 723 (or thereabouts) from...
$editor = '<textarea name="' . $name . '" id="' . $id .'" cols="'. $col .'" rows="' . $row . '" style="width: ' . $width . '; height:' . $height . ';" class="mce_editable">' . $content . "</textarea>\n" .
to...
$editor = '<textarea name="' . $name . '" id="' . $id .'" cols="'.
$col .'" rows="' . $row . '" style="width: ' . $width . '; height:500px;"
class="mce_editable">' . $content . "</textarea>\n" .
Replacing the height value with the height of your choice.

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