var currentNewsImage = 1;
var rotateNewsImageInterval;
var prevNewsImage = 0;

function rotateNewsImage(){
	var images = $(".news_imgs");
	var hideImage = 0;

	currentNewsImage = currentNewsImage == images.length ? 1 : currentNewsImage + 1;
	hideImage = currentNewsImage > 1 ? currentNewsImage - 1 : images.length;

	$(".news_imgs[rel='" + currentNewsImage + "']").fadeIn(500);
	$(".news_imgs[rel='" + hideImage + "']").hide();
	
	$("a#news_" + $(".news_imgs[rel='" + currentNewsImage + "']").attr('pid')).toggleClass('selected');
	$("a#news_" + $(".news_imgs[rel='" + hideImage + "']").attr('pid')).toggleClass('selected');
	
	//$("a#hp_pic_url").attr('href', $(".news_imgs[rel='" + currentNewsImage + "']").attr('title'));
}

function startRotateNewsImage(){
	rotateNewsImageInterval = setInterval('rotateNewsImage();',6000);
}

function stopRotateNewsImage(){
	clearInterval(rotateNewsImageInterval);
}	

function showNewsImage(pid){
	if(pid==currentNewsImage){
		return;
	}
	
	var hideImage = prevNewsImage = currentNewsImage;
	
	$("a#news_" + $(".news_imgs[rel='" + currentNewsImage + "']").attr('pid')).toggleClass('selected');
	
	currentNewsImage = pid;
	$(".news_imgs[rel='" + currentNewsImage + "']").fadeIn(100);
	$(".news_imgs[rel='" + hideImage + "']").hide();	
}

function unshowNewsImage(pid){
	if(prevNewsImage == 0 || prevNewsImage==pid){
		return;
	}
	var hideImage = currentNewsImage;
	currentNewsImage = prevNewsImage;
	
	$("a#news_" + $(".news_imgs[rel='" + currentNewsImage + "']").attr('pid')).toggleClass('selected');
	
	$(".news_imgs[rel='" + currentNewsImage + "']").fadeIn(100);
	$(".news_imgs[rel='" + hideImage + "']").hide();
}

startRotateNewsImage();