/*

	----------------------------------------------------------------------------------------------------
	ブラウザチェック
	----------------------------------------------------------------------------------------------------
	
*/

function getOSType() {
	var uAgent = navigator.userAgent.toUpperCase();
	
	if (uAgent.indexOf("MAC") >= 0) return "MacOS";
	if (uAgent.indexOf("WIN") >= 0) return "Windows";
	if (uAgent.indexOf("X11") >= 0) return "UNIX"; return "";
}

//　Firefox -> Firefox 
//　Netscape Navigator -> Netscape 
//　Internet Explorer ->　Explorer 
//　Safari ->　Safari 
//　Opera ->　Opera 

function getBrowserName() {
	var aName = navigator.appName.toUpperCase();
	var uName = navigator.userAgent.toUpperCase();

	if (uName.indexOf("SAFARI") >= 0) return "Safari";
	if (uName.indexOf("OPERA") >= 0) return "Opera";
	if (uName.indexOf("FIREFOX") >= 0) return "Firefox";
	if (aName.indexOf("NETSCAPE") >= 0) return "Netscape";
	if (aName.indexOf("MICROSOFT") >= 0) return "Explorer"; return "";
}

function getBrowserVersion() {
	var browser = getBrowserName();
	var version = 0; var s = 0; var e = 0;
	var appVer = navigator.appVersion;
	var uName = navigator.userAgent.toUpperCase();

	if (browser == "Safari") {
		s = uName.indexOf("SAFARI/",0);
		version = (uName.substring(s+7,s+99));

		if (version < 400) version = 1;
		if ((version >= 400) < (version <= 499)) version = 2;
		if (version >= 500) version = 3;
	}
	if (browser == "Opera") {
		s = uName.indexOf("OPERA",0) + 6;
		e = uName.indexOf(" ",s);
		version = parseFloat(uName.substring(s,e));
	}
	if (browser == "Firefox") {
		s = uName.indexOf("FIREFOX/",0);
		version = parseFloat(uName.substring(s+8,s+8+3));
	}
	if (browser == "Netscape") {
		s = appVer.indexOf(" ",0);
		version = eval(appVer.substring(0,s));
		if (version >= 5) version++;
	}
	if (browser == "Explorer") {
		appVer = navigator.userAgent;
		s = appVer.indexOf("MSIE ",0) + 5;
		e = appVer.indexOf(";",s);
		version = eval(appVer.substring(s,e));
	}
	return version;
}



/*

	----------------------------------------------------------------------------------------------------
	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 : 1
    }, 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();



//右メニュー、真ん中、左メニューのサイズ指定
		var liWidth = 190;
		var liWidth2 = 710;
		

		var animating = false;
//		ul.css( "width", ( li.length * liWidth ) );
		$next.click(function() {
			if ( !animating ) {
				animating = true;
				offsetLeft = parseInt( ul.css( "left" ) ) - ( liWidth );
				
				if ( offsetLeft + ul.width() > 0 ) {
					$back.css( "display", "block" );
					ul.animate({
						left: offsetLeft
					}, settings.speed, function() {
//						if ( parseInt( ul.css( "left" ) ) + ul.width() <= liWidth2 * settings.slideBy ) {
						if ( parseInt( ul.css( "left" ) ) + ul.width() <= (liWidth + liWidth2) ) {
							$next.css( "display", "none" );
						}
						animating = false;
					});
				} else {
					animating = false;
				}
			}
			return false;
		});
		$back.click(function() {
			if ( !animating ) {
				animating = true;
				offsetRight = parseInt( ul.css( "left" ) ) + ( liWidth );
				
				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" )
	}
};