// JavaScript Document
jQuery.fn.rating = function(url, options) {
	
	if(url == null) return;
	
	var settings = { url:url, increment:.5, maxvalue:5, curvalue:0 };
	
	if(options) { jQuery.extend(settings, options); };
	jQuery.extend(settings, {cancel: (settings.maxvalue > 1) ? true : false});
   
	var container = jQuery(this);
	
	jQuery.extend(container, { averageRating: settings.curvalue, url: settings.url });

	settings.increment = (settings.increment < .75) ? .5 : 1;
	var s = 0;
	for(var i= 0; i <= settings.maxvalue ; i++){
		if (i == 0) {
			if(settings.cancel == true){
				var div = '<div class="cancel"><a href="#0" title="Cancel Rating">Cancel Rating</a></div>';
				container.empty().append(div);
			}
			} else {
				var $div = $('<div class="star"></div>')
				.append('<a href="#'+i+'" title="Give it '+i+'/'+settings.maxvalue+'">'+i+'</a>')
				.appendTo(container);
				if (settings.increment == .5) {
					if (s%2) {
						$div.addClass('star-left');
					} else {
						$div.addClass('star-right');
					}
				}
			}
			i=i-1+settings.increment;
			s++;
		}
	
	var stars = jQuery(container).children('.star');
	var cancel = jQuery(container).children('.cancel');
	
	stars.mouseover(function(){
		event.drain();
		event.fill(this);
	}).mouseout(function(){
		event.drain();
		event.reset();
	}).focus(function(){
		event.drain();
		event.fill(this);
	}).blur(function(){
		event.drain();
		event.reset();
	});

	stars.click(function(){
		if(settings.cancel == true){
			settings.curvalue = (stars.index(this) * settings.increment) + settings.increment;
			jQuery.get(container.url, {
			"rateIndex": jQuery(this).children('a')[0].href.split('#')[1] 
		});
		return false;
		} else if (settings.maxvalue == 1) {
			settings.curvalue = (settings.curvalue == 0) ? 1 : 0;
			$(this).toggleClass('on');
			jQuery.get(container.url, {
			"rateIndex": jQuery(this).children('a')[0].href.split('#')[1] 
		});
			return false;
		}
		return true;
	});

  // cancel button events
	if(cancel){
		cancel.mouseover(function(){
		event.drain();
		jQuery(this).addClass('on');
	}).mouseout(function(){
		event.reset();
		jQuery(this).removeClass('on');
	}).focus(function(){
		event.drain();
		jQuery(this).addClass('on');
	}).blur(function(){
		event.reset();
		jQuery(this).removeClass('on');
	});
      
    // click events.
	cancel.click(function(){
		event.drain();
		settings.curvalue = 0;
		jQuery.get(container.url, {
			"rateIndex": jQuery(this).children('a')[0].href.split('#')[1] 
		});
		return false;
	});
	}
        
	var event = {
		fill: function(el){ // fill to the current mouse position.
			var index = stars.index(el) + 1;
			stars
				.children('a').css('width', '100%').end()
				.slice(0,index).addClass('hover').end();
		},
		drain: function() { // drain all the stars.
			stars
				.filter('.on').removeClass('on').end()
				.filter('.hover').removeClass('hover').end();
		},
		reset: function(){ // Reset the stars to the default index.
			stars.slice(0,settings.curvalue / settings.increment).addClass('on').end();
		}
	};    
	event.reset();
	return(this);	
};