// 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)
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: $('#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.fn.rating = function(id) {
	
//	if(url == null) return;
	
	var settings = {
    url : '/cgi-bin/output/votestar/rate.app', // post changes to 
    increment : .5, // value to increment by
    maxvalue  : 5,   // max number of stars
    curvalue  : Number($("#t_"+id).html())    // 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,
    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.append(div);
      }
    } else {
      var $div = $('<div class="star"></div>')
        .append('<a onfocus="blur()" href="#'+i+'" title="'+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){


 		var coo = "R_" + id;
 		var check =getCookie(coo);
 		if(check){
 				$("#r_"+id).html('<br/>Ваш голос уже засчитан'); 
 			 }

		else{    
			    $("#r_"+id).html('<br/>Ваша оценка: '+jQuery(this).children('a')[0].href.split('#')[1]).show();  
			     var total_rating = Number($("#t_"+id).html());
			     var total_votes = Number($("#v_"+id).html())+1;
			     var cur_rating = Number(jQuery(this).children('a')[0].href.split('#')[1]);
			     var newrete   = ( total_rating * total_votes + cur_rating) / ( total_votes +1) ;
			     newrete = newrete.toFixed(1); 
			     if (total_rating == 0) {newrete = jQuery(this).children('a')[0].href.split('#')[1]}
			    $("#t_"+id).html(newrete).show();  
			    $("#v_"+id).html(total_votes).show();  


      settings.curvalue = (stars.index(this) * settings.increment) + settings.increment;
      jQuery.post(container.url, {
  		"id": id, 
        "rating": 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.post(container.url, {
        "id": id , 
        "rating": jQuery(this).children('a')[0].href.split('#')[1]  
      });
			return false;
		}
		return true;
			
  });

        
	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);	

};