This thread becomes quite funny if you replace "pl" with "w". Especially [MENTION=16362]Flex[/MENTION] and [MENTION=2399]czc[/MENTION]'s comments.
Like this?
var words = document.querySelectorAll("blockquote");
for(var i = 0; i < words.length; i++){words[i].innerHTML = words[i].innerHTML.replace(/pl/g,"w");}