jQuery.switchPrdImg = function(self, itemId, itemType, photoFilename, photoWidth, photoHeight) {
		
		// Link
		var src = '/img/'+itemType+'/'+itemId+'/'+photoFilename;
		$('#highlightedPhotoLink').attr('href', src);
		
		// Img
		src = '/img/'+itemType+'/' + itemId + '/medium/' + photoFilename;
		mediumImg = $('#highlightedPhotoLink img:first-child');
		mediumImg.attr('src', src);
		mediumImg.attr('width', photoWidth);
		mediumImg.attr('height', photoHeight);
		
		// Mark thumb as being viewed.
		self.closest('.main_photo_thumbnails').find('li').removeClass('selected');
		self.closest('li').addClass('selected');
	};