if (navigator.userAgent.indexOf('Safari') != -1) {
        window.addEventListener('load', function() {
                var lock = false;
                var labels = document.getElementsByTagName('label');
                for (var i = 0; i < labels.length; i++)
                        labels[i].addEventListener('click', function() {
                                var input = (this.htmlFor ? document.getElementById(this.htmlFor) : this.getElementsByTagName('input')[0]);
                                if (input && !lock) {
                                        input.focus();
                                        lock = true;
                                        input.click();
                                        lock = false;
                                }
                        });
        });
}

After unzipping, taring or whatever archive you used copy thepatch over the old files, replacing them.

Copy the files in your newly extracted directory (pmwik-new/wordpress-patch) over the files of your existing software installation. For example, if your existing PmWiki/Wordpress installation is in a directory called pmwiki/wordpress, then one way to copy the new files over the existing ones is to enter the command:

cp -a pmwiki-new/. pmwiki

Note that BSD systems will not have the -a option as a command-line argument for cp, but that's okay, since it's just shorthand for cp -dpR, so use that instead of -a.

On (some) FreeBSD servers and Mac OS X systems you need to use

cp -Rpv pmwiki-new/. pmwiki 

This works well on TxD shared hosting.