Please, please, make your webapp/website user’s life easier, with lifedraft_doubleChar jQuery Plugin you could type without have to memorize where your double quoute, round brackets or square brackets start or end.
Download the Plugin and jQuery, embed both in your page, create your textarea or input[type=text] element and complete it with the following:
jQuery("textarea").lifedraft_doubleChar();
Your users will say “Thank you” to you!
Done.