Uncheck signature option in quickreply by default?

[Bellinis]

On our board we'd like to have the checkboxes for adding signatures to posts OFF by default. I found two templates where I could turn this off, but how do I uncheck the box in the quickreply???. Hope someone can point me in the right direction :)

Thanks!

[Wseries]

This worked for me. In clientscript/vbulletin_quick_reply.js

Find:
{A.disabled=false;A.checked=true}

Change to:
{A.disabled=false;A.checked=false}