// JavaScript Document
/*************************************************
Star Rating System
First Version: 21 November, 2006
Author: Ritesh Agrawal
Inspriation: Will Stuckey's star rating system (http://sandbox.wilstuckey.com/jquery-ratings/)
Demonstration: http://php.scripts.psu.edu/rja171/widgets/rating.php
Usage: $('#rating').rating('www.url.to.post.com', {maxvalue:5, curvalue:0});

arguments
url : required -- post changes to 
options
  maxvalue: number of stars
  curvalue: number of selected stars
  

************************************************/

jQuery.fn.rating = function(url, options) {
  
  if(url == null) return;
  
  var settings = {
        url       : url, // post changes to 
        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,
            url: settings.url
        });

  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" title="'+i+'"><a href="#' + i + '" title="' + i + '">'+i+'</a></div>';
       container.append(div);

        }
 
    

  }
  
  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) + 1;
            jQuery.post(container.url, {
                "rating": jQuery(this).children('a')[0].href.split('#')[1] 
            });
      return false;
    }
    else if(settings.maxvalue == 1){*/
      //settings.curvalue = (settings.curvalue == 0) ? 1 : 0;
      settings.curvalue = stars.index(this) + 1;
      $(this).toggleClass('on');
      jQuery.post(container.url, {
                "rating": jQuery(this).children('a')[0].href.split('#')[1]
            },function() {
              jQuery('.star')
                  .unbind('mouseover')
                  .unbind('mouseout')
                  .unbind('focus')
                  .unbind('click')
                  .unbind('blur');
            });
      return false;
    /*}*/
    //$('#rate').val(stars.index(this) + 1);
    //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.post(container.url, {
                "rating": 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).addClass('on').end();
    }
  }        
  event.reset();
  
  return(this);  

}