var current = 0;
var interval = setInterval ( "nextImage()", 8000 );
var n;
$(function(){
	n = $('.img_container div img').size();
	$("#plus a").click(function(){
		if(current==n-1){
			current = 0;
		} else {
			current = parseInt(current)+1;
		}
		clearInterval(interval);
		interval = setInterval ( "nextImage()", 8000 );
		$('#img_center').scrollTo(".img_container div[rel="+current+"]", 500);
		return false;
	});
	$("#minus a").click(function(){
		if(current==0){
			current = n-1;
		} else {
			current = parseInt(current)-1;
		}
		clearInterval(interval);
		interval = setInterval ( "nextImage()", 8000 );
		$('#img_center').scrollTo(".img_container div[rel="+current+"]", 500);
		return false;
	});
});

function nextImage(){
	if(current==n-1){
		current = 0;
	} else {
		current = parseInt(current)+1;
	}
	$('#img_center').scrollTo(".img_container div[rel="+current+"]", 500);
}