//JavaScript Document
$(function () {
	var spd_p_font = 500;
	var speed_font = 3000;
	var SetInter_font;
	var $box_font;
	var li_wh_font = 0;
	var li_num_font = 0;
	var cur_li_font = 0;
	var $box = $(".in_tz .ct");
	$box_font = $box.find("ul");
	li_wh_font = $box_font.find("li").height() ;
	li_num_font = $box_font.find("li").length;
	//执行滚动
	if ($box_font.find("li").length > 1) {		F_move_font();
	}
	//开始执行滚动
	function F_move_font() {
		SetInter_font = setInterval(function(){
			++cur_li_font;
			Marquee_font(cur_li_font);
		}, speed_font);
		$box.find(".up").bind("click", function(){
			--cur_li_font;
			Marquee_font(cur_li_font);
		});
		$box.find(".down").bind("click", function(){
			++cur_li_font;
			Marquee_font(cur_li_font);
		});
		$box.hover(
			function () {
				clearInterval(SetInter_font);
			},
			function () {
				clearInterval(SetInter_font);
				SetInter_font = setInterval(function(){
					++cur_li_font;
					Marquee_font(cur_li_font);
				}, speed_font);
			}
		);
	}
	//滚动事件，初始
	function Marquee_font(_cur) {
		if (!$box_font.is(":animated")) {			cur_li_font = _cur;
			if (cur_li_font >= li_num_font) {
				cur_li_font = 0;
			}
			if (cur_li_font < 0) {
				cur_li_font = li_num_font-1;
			}
			$box_font.stop().animate({ "top": -1*li_wh_font*cur_li_font }, spd_p_font);
		}
	}
});