// JavaScript Document
/*************************************************
Star Rating System
First Version: 21 November, 2006
Second Version: 17 May, 2007
Author: Ritesh Agrawal (http://php.scripts.psu.edu/rja171/widgets/rating.php)
        email: ragrawal [at] gmail (dot) com
Inspiration: Will Stuckey's star rating system (http://sandbox.wilstuckey.com/jquery-ratings/)
Half-Star Addition: Karl Swedberg
Demonstration: http://examples.learningjquery.com/rating/
Usage: jQuery('#rating').rating('url-to-post.php', {maxvalue:5, curvalue:0});

arguments
url : required -- post changes to 
options
  increment : 1, // value to increment by
	maxvalue: number of stars
	curvalue: number of selected stars
	

************************************************/
jQuery.noConflict();
jQuery.fn.rating = function(options) 
{
	//debugger;
	var settings = {
								increment : 0.5, // value to increment by
								maxvalue  : 5   // max number of stars
								//curvalue  : 0    // number of selected stars
							};
		
	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
											});
											
	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 jQuerydiv = jQuery('<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) 
				{
					jQuerydiv.addClass('star-left');
				} else 
				{
					jQuerydiv.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;
			//debugger;
			get_value(jQuery(this));
			
			//var url=jQuery(this).children('a')[0].href;
			//jQuery(this).parent('div.rating').nextAll('div.value').empty().append(url.substr(url.lastIndexOf('#')+1));
			return true;
		} else if (settings.maxvalue == 1) 
			{
				settings.curvalue = (settings.curvalue == 0) ? 1 : 0;
				jQuery(this).toggleClass('on');
				
				get_value(jQuery(this));
				//var url=jQuery(this).children('a')[0].href;
				//jQuery(this).parent('div.rating').nextAll('div.value').empty().append(url.substr(url.lastIndexOf('#')+1));
				return true;
			}
		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;
			//debugger;
			
			get_value(jQuery(this));
			//var url=jQuery(this).children('a')[0].href;
			//jQuery(this).parent('div.rating').nextAll('div.value').empty().append(url.substr(url.lastIndexOf('#')+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);	

};

function get_value(ofobj) 
{
	//debugger;
	var retVal=ofobj.children('a')[0].href;
	retVal=retVal.substr(retVal.lastIndexOf('#')+1);
	var parentid=jQuery(ofobj[0]).parents('div.rating')[0].id;
	parentid = parentid.substring(0,parentid.lastIndexOf('_'));
	//retVal=parentid+'_'+retVal;
	
	ofobj.parent('div.rating').nextAll('div.value').empty().append(retVal);
	//window.alert(retVal);
	return (retVal);
}