gistfile1.js

// P&T link automations

var ee_affiliate_name = 'brandonkelly',
	external_re = new RegExp('^https?://(?!'+document.location.hostname+')'),
	external_ee_re = new RegExp('^(https?://(secure\\.)?expressionengine.com\\/)([^#]*)(#(\\w+))?$'),
	ee_affiliate_re = new RegExp('^index\\.php\\?affiliate='+ee_affiliate_name);

$('a').each(function(){
	// is this an external link?
	if (this.href.match(external_re)) {

		// enforce target="_blank" (take that Boyink!)
		this.target = '_blank';
		$(this).addClass('external');

		// if this is a link to expressionengine.com
		// but not already an affiliate link, convert it one
		var href = this.href,
			match = href.match(external_ee_re);
		if (match && ! match[3].match(ee_affiliate_re)) {
			this.href = match[1]+'index.php?affiliate='+ee_affiliate_name
			          + (match[3] ? '&page=/'+match[3] : '')
			          + (match[5] ? '&anchor='+match[5] : '');
		}
	}
});