var RSS_NEWS_ID 			= "rssItem_";
var RSS_NEWS_ROTATE_SPEED	= 5;
var RSS_NEWS_CURRENT		= 1;


function rotateNewsNext(total)
{
	if(RSS_NEWS_CURRENT < (total - 1))
	{
		RSS_NEWS_CURRENT = RSS_NEWS_CURRENT + 1;
	}
	else
	{
		RSS_NEWS_CURRENT = 1;
	}
	
	return RSS_NEWS_CURRENT;
}

function rotateNews(total)
{	
	new PeriodicalExecuter(
		
		function(pe) 
		{
			if($(RSS_NEWS_ID+RSS_NEWS_CURRENT))
			{
				new Effect.Fade(RSS_NEWS_ID+RSS_NEWS_CURRENT, {
					duration: 0.3,
					afterFinish: function ()
					{
						var next = rotateNewsNext(total);
						
						if($(RSS_NEWS_ID+next))
						{
							new Effect.Appear(RSS_NEWS_ID+next, {
								duration: 0.3
							});
						}
					}
				});
			}
						
		},  RSS_NEWS_ROTATE_SPEED
	);
}