//jQuery Rater Plugin 1.1 Copyright 2008 Jarrett Vance http://jvance.com
(function($)
{
	$.fn.rater = function(options) {
		var opts = $.extend({}, $.fn.rater.defaults, options);
		return this.each(function() {
			var $this = $(this);
			var $on = $this.find('.ui-rater-starsOn');
			var $off = $this.find('.ui-rater-starsOff');
			if (opts.size == undefined) opts.size = $off.height();
			if (opts.rating == undefined) opts.rating = $on.width() / opts.size;
			if (opts.id == undefined) opts.id = $this.attr('id');

			$off.mousemove(function(e) {
				var left = e.clientX - $off.offset().left;
				var width = $off.width() - ($off.width() - left);
				width = Math.min(Math.ceil(width / (opts.size / opts.step)) * opts.size / opts.step, opts.size * opts.ratings.length)
				$on.width(width);
				var r = Math.round($on.width() / $off.width() * (opts.ratings.length * opts.step)) / opts.step;
				$this.attr('title', opts.ratings[r - 1] == undefined ? r : opts.ratings[r - 1]);
			}).hover(function(e) { $on.addClass('ui-rater-starsHover'); }, function(e) {
				$on.removeClass('ui-rater-starsHover'); $on.width(opts.rating * opts.size);
			}).click(function(e) {
				var r = Math.round($on.width() / $off.width() * (opts.ratings.length * opts.step)) / opts.step;
				$.fn.rater.rate($this, opts, r);
			}).css('cursor', 'pointer'); $on.css('cursor', 'pointer');
		});
	};

	$.fn.rater.defaults = {
		postHref: location.href,
		ratings: ['Tragic', 'Awful', 'Bad', 'Fair', 'Average', 'Quite OK', 'Good', 'Great', 'Awesome', 'Magnificent'],
		step: 1
	};

	$.fn.rater.rate = function($this, opts, rating) {
		var $on = $this.find('.ui-rater-starsOn');
		var $off = $this.find('.ui-rater-starsOff');
		$off.fadeTo(600, 0.4, function() {
			$.ajax({
				url: opts.postHref,
				type: "POST",
				data: 'id=' + opts.id + '&rating=' + rating,
				complete: function(req) {
					if (req.status == 200) { //success
						opts.rating = parseFloat(req.responseText);
						$off.unbind('click').unbind('mousemove').unbind('mouseenter').unbind('mouseleave');
						$off.css('cursor', 'default'); $on.css('cursor', 'default');
						$off.fadeTo(600, 0.1, function() {
							$on.removeClass('ui-rater-starsHover').width(opts.rating * opts.size);
							var $count = $this.find('.ui-rater-rateCount');
							$count.text(parseInt($count.text()) + 1);
							$this.find('.ui-rater-rating').text(opts.rating.toFixed(1));
							$off.fadeTo(500, 1);
							$this.attr('title', 'Your rating: ' + rating.toFixed(1));
						});
						var sbut = document.getElementById('sub'+opts.id);
						if(sbut != null) {
							sbut.disabled = false;
						}
					} else { //failure
						alert(req.responseText);
						$off.fadeTo(2200, 1);
					}
				}
			});
		});
	};
})(jQuery);