Change the default size of the quick reply box

[servan]

I need to change the default size of the quick reply box (to do bigger). What instance do I do this in and what part of the templete would I look at?

i think is showthread_quickreply template but i don't know how to do it:

<div class="controlbar">
<if condition="$show['qr_require_click']">
<textarea name="message" id="{$editorid}_textarea" rows="10" cols="60" style="width:$stylevar[messagewidth]; height:{$editor_height}px" tabindex="1" dir="$stylevar[textdirection]" disabled="disabled">$vbphrase[click_quick_reply_icon]</textarea>
<else />
<textarea name="message" id="{$editorid}_textarea" rows="10" cols="60" style="width:$stylevar[messagewidth]; height:{$editor_height}px" tabindex="1" dir="$stylevar[textdirection]"></textarea>
</if>
</div>


Thank you!