/*

----------------------------------------------------------------------------------------------------
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(".next > a", $this);
        var $back = jQuery(".back > a", $this);
        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)
                {
                    $back.css("display", "block");
                    ul.animate({
                        left: offsetLeft
                    }, settings.speed, function()
                    {
                        if (parseInt(ul.css("left")) + ul.width() <= liWidth * settings.slideBy)
                        {
                            $next.css("display", "none");
                        }
                        animating = false;
                    });
                } else
                {
                    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())
                {
                    $next.css("display", "block");
                    ul.animate({
                        left: offsetRight
                    }, settings.speed, function()
                    {
                        if (parseInt(ul.css("left")) == 0)
                        {
                            $back.css("display", "none");
                        }
                        animating = false;
                    });
                } else
                {
                    animating = false;
                }
            }
            return false;
        });
        $next.css("display", "block")
					//.parent().after(["<p class=\"view_all\">", settings.headline, "  ( <a href=\"#\"></a> )</p>"].join(""));
					//.parent().after(["<p class=\"view_all\">", settings.headline, "  ( <a href=\"#\">نمایش تمامی اخبار</a> )</p>"].join(""));
        //.parent().after( [ "<p class=\"view_all\">", settings.headline, " - ", li.length, " total ( <a href=\"#\">تمامی خبر ها</a> )</p>" ].join( "" ) );

        jQuery(".view_all > a, .skip_to_news > a", $this).click(function()
        {
            var skip_to_news = (jQuery(this).html() == "Skip to News");
            if (jQuery(this).html() == "نمایش تمامی اخبار" || skip_to_news)
            {
                ul.css("width", "auto").css("left", "0");
                $next.css("display", "none");
                $back.css("display", "none");
                if (!skip_to_news)
                {
                    jQuery(this).html("بازگشت");
                }
            } else
            {
                if (!skip_to_news)
                {
                    jQuery(this).html("نمایش تمامی اخبار");
                }
                ul.css("width", (li.length * liWidth));
                $next.css("display", "block");
            }
            return false;
        });
    }
};