var innerGroup = $(".innerwraper");
var leftArrow = $(".left-arrow");
var rightArrow = $(".right-arrow");
var spanGroup = $(".pagination span");
//var imgWidth = $(".innerwraper img:first-child").eq(0).width();
var imgWidth = 337;
var _index = 0;
var timerSBanner = null;
var flag = true;
rightArrow.on("click", function() {
	//右箭头
	flag = false;
	clearInterval(timerSBanner);
	_index++;
	selectPic(_index);
})
leftArrow.on("click", function() {
	//左箭头
	flag = false;
	clearInterval(timerSBanner);
	if (_index == 0) {
		_index = innerGroup.length - 1;
		$(".inner").css("left", -(innerGroup.length - 1) * imgWidth);
	}
	_index--;
	selectPic(_index);
})
spanGroup.on("click", function() {
	//导航切换
	_index = spanGroup.index($(this));
	selectPic(_index);
})

$(".container").hover(function() {
	//鼠标移入
	clearInterval(timerSBanner);
	flag = false;
}, function() {
	flag = true;
	timerSBanner = setInterval(go, 5000);
});

function autoGo(bol) {
	//自动行走
	if (bol) {
		timerSBanner = setInterval(go, 5000);
	}
}

setTimeout("autoGo("+flag+")",100);

function go() {
	//计时器的函数
	_index++;
	if(_index < 0 || _index >= innerGroup.length){
		_index = 0;
	}
	selectPic(_index);
}
function selectPic(num) {
	$(".pagination span").eq(num).addClass("active").siblings().removeClass("active");
	$(".index-main-box .index-main .focus-news .sbanner-title label").hide();
	$(".index-main-box .index-main .focus-news .sbanner-title #flag"+(num+1)).show();
	$(".inner").animate({
		left: -num * imgWidth,
	}, 1000, function() {
		//检查是否到最后一张
		if (_index == innerGroup.length - 1) {
			_index = -1;
			//$(".inner").css("left", "0px");
			//$(".pagination span").eq(0).addClass("active").siblings().removeClass("active");
		}
	})
}