// JavaScript Document
$(function () {
    function f_do(_obj, _num) {
		var spd_p_news = 600;
		var speed_news = 4000;
		var SetInter_news;
		var $box_news;
		var $box_news_1;
		var $box_news_2;
		var li_wh_news = 0;
		var li_num_news = 0;
		var cur_li_img = 0;
		var $box_news_sm;
		var page_num_news = 1;
		var slide_num_news = 1;
        var $box = $(_obj);
        $box_news = $box.find(".img_box");
        $box_news_1 = $box_news.find(".img_box_1");
        $box_news_2 = $box_news.find(".img_box_2");
        li_wh_news = $box_news_1.find("li").width() + parseInt($box_news_1.find("li").css("margin-right"));
        li_num_news = $box_news_1.find("li").length;
        $box_news.css({ "margin-left": 0 });
		slide_num_news = _num;
		page_num_news = Math.ceil(li_num_news/slide_num_news);
        //cur_li_img = 0;
        //SetInter_news = null;
        $box_news.width(2 * li_wh_news * li_num_news);
		//点点点
		$box_news_sm = $box.find(".btnlist");
		$box_news_sm.html("");
		for(var i=0; i<page_num_news; i++){
			$box_news_sm.append("<li></li>");
		}
		$box_news_sm.find("li:first").addClass("cur");
        //执行滚动
        if ($box_news_1.find("li").length > 1) {
            f_move_ban();
        }
        //开始执行滚动
        function f_move_ban() {
            $box_news_2.html($box_news_1.html());
            SetInter_news = setInterval(Marquee_ban, speed_news);
            $box.hover(
				function () {
				    clearInterval(SetInter_news);
				},
				function () {
				    clearInterval(SetInter_news);
				    SetInter_news = setInterval(Marquee_ban, speed_news);
				}
			);
			$box_news_sm.find("li").click(function () {
				if (!$box_news.is(":animated")) {													cur_li_img = $box_news_sm.find("li").index($(this));
					$box_news_sm.find("li").removeClass("cur");
					$(this).addClass("cur");
					$box_news.stop().animate({ "margin-left": -1*li_wh_news*cur_li_img*slide_num_news }, spd_p_news);
				}
			});
        }
        //滚动事件，初始
        function Marquee_ban() {
            if (!$box_news.is(":animated")) {
                if (cur_li_img >= page_num_news) {
                    $box_news.css({ "margin-left": 0 });
                    cur_li_img = 0;
                }
                cur_li_img++;
				$box_news.stop().animate({ "margin-left": -1*li_wh_news*cur_li_img*slide_num_news }, spd_p_news);
				$box_news_sm.find("li").removeClass("cur");
				if(cur_li_img == page_num_news){
					$box_news_sm.find("li:first").addClass("cur");
				}
				else{
					$box_news_sm.find("li").eq(cur_li_img).addClass("cur");
				}
            }
        }
    }
    f_do(".in_cont_1 .lt", 1);
});