/*

  ----------------------------------------------------------------------------------------------------
  Accessible News Slider
  ----------------------------------------------------------------------------------------------------
  
  Author:
  Brian Reindel
  
  Author URL:
  http://blog.reindel.com

  License:
  Unrestricted. This script is free for both personal and commercial use.

*/

jQuery.fn.accessNews = function( settings ) {
  settings = jQuery.extend({
        headline : "Top Stories",
        speed : "normal",
    slideBy : 2
    }, settings);
    return this.each(function() {
    jQuery.fn.accessNews.run( jQuery( this ), settings );
    });
};
jQuery.fn.accessNews.run = function( $this, settings ) {
  jQuery( ".javascript_css", $this ).css( "display", "none" );
  var ul = jQuery( "ul:eq(0)", $this );
  var li = ul.children();
  if ( li.length > settings.slideBy ) {
    
    var $next = jQuery( "a#next");
    var $back = jQuery( "a#back");
    var liWidth = jQuery( li[0] ).width();
    var animating = false;
    ul.css( "width", ( li.length * liWidth ) );

    $next.click(function() {

      if ( !animating ) {
        animating = true;
        offsetLeft = parseInt( ul.css( "left" ) ) - ( liWidth * settings.slideBy );
                       
        if ( offsetLeft + ul.width() > 0 ) {
          ul.animate({
            left: offsetLeft
          }, settings.speed, function() {
            if ( parseInt( ul.css( "left" ) ) + ul.width() <= (liWidth * settings.slideBy)-liWidth ) {
                    ul.animate({
                    left: 0
                  }, settings.speed, function() {animating = false;});
                    
                    
            }
            animating = false;
          });
        } else {
            
            ul.animate({
              left: 0
             }, settings.speed, function() {animating = false;});
        }
      }
      return false;
    });
    $back.click(function() {
      if ( !animating ) {
        animating = true;
        offsetRight = parseInt( ul.css( "left" ) ) + ( liWidth * settings.slideBy );
        if ( offsetRight + ul.width() <= ul.width() ) {
          ul.animate({
            left: offsetRight
          }, settings.speed, function() {
            if ( parseInt( ul.css( "left" ) ) >0 ) {
                     ul.animate({
                      left: -((li.length-settings.slideBy) * liWidth)
                             }, settings.speed, function() {animating = false;});
            }
            animating = false;
          });
        } else {
                        ul.animate({
                      left: -((li.length-settings.slideBy) * liWidth)
                             }, settings.speed, function() {animating = false;});
        }
      }
      return false;
    });
    $(".view_all").html(settings.headline + " - " + li.length + "  ( <a href=\"#\">Показать все</a> )</p>");
    jQuery( ".view_all > a, .skip_to_news > a").click(function() {
      var skip_to_news = ( jQuery( this ).html() == "Skip to News" );
      if ( jQuery( this ).html() == "Показать все" || skip_to_news ) {
        ul.css( "width", "auto" ).css( "left", "0" ).css( "height", "auto" );
        $next.css( "display", "none" );
        $back.css( "display", "none" );
        if ( !skip_to_news ) {
          jQuery( this ).html( "Свернуть фото" );
        }
      } else {
        if ( !skip_to_news ) {
          jQuery( this ).html( "Показать все" );
        }
        ul.css( "width", ( li.length * liWidth ) );
        $next.css( "display", "block" );
                $back.css( "display", "block" );
      }
      return false;
    });
  }
};