$(document).ready(function() {
	// All links with rel="external" will open in a new window
	$('a[rel=external]').click(function() {
		window.open($(this).attr('href'));
		return false;
	});
	
	// Creates permalink preview
	// Attaches to any .permalinkSource
	$('.permalinkSource').keyup(function() {
		// Element's id + Preview
		$('#' + $(this).attr('id') + 'Preview').html(
			$(this).val()
				.toLowerCase()
				// replaces spaces with dashes
				.replace(/ /g, '-')
				// strips any characters not matching:
				// - digits
				// - word-characters (letters/digits/underscores)
				// - whitespace (spaces/tabs/linebreaks)
				// - dashes
				.replace(/[^\d\w\s-]/g, '')
		)
	});
});