// javascript document
$(document).ready(function($){
	var $showpic =$('#bannerlist li');
	var $btonbox=$('#bannerbton');
	var _n=0;
	var _vt=3000;
	var _vf=1000;
	var timer;
	//生成角标
	for(i=1;i<=$showpic.length;i++){
		$btonbox.append('<li></li>');
	}
	var $btonlist=$btonbox.children('li');
	//鼠标事件
	$btonlist.each(function(e){
			$(this).hover(function(){
				clearinterval(timer);
				showimg(e);
				_n=e;
			},function(){
				timer = setinterval(auto,_vt);
			});
		});
	//图片轮换
	var showimg= function(n){
		$showpic.stop(true,true).eq(n).fadein(_vf).siblings().fadeout(_vf);
		$btonlist.eq(n).addclass('up').siblings().removeclass('up');
	}
	//自动播放
	var auto=function(){
		showimg(_n);
		_n++
		if(_n == $showpic.length){_n=0;}
	}
	timer = setinterval(auto,_vt);
	showimg(_n);
	_n++;
});
$(function($){
	$(".news_ul>li:even").addclass("bac")
});

$(function($) {
	$(".nav_bg>.nav>li>.dhtype").each(function(e) {
		$(this).width(function() {
			var width = 0;
			$(this).children('li').children('a').each(function() {
				width += $(this).outerwidth(true);
			})
			return width;
		});
		if (e >= 5) {
			$(this).css('right', '0');
		} else {
			$(this).css('left', '0');
		}
	});
	$('.nav_bg>.nav>li').hover(function() {
		$(this).children('ul').stop(true, true).show(300);
	}, function() {
		$(this).children('ul').stop(true, true).fadeout(200);
	});

});

var ulroll= function(id,dir,vt){
	var scrollbox=document.getelementbyid(id);//滚动外层遮挡框架
	if(!scrollbox) return false;
	var oldcontent=scrollbox.getelementsbytagname("ul")[0];//ul index=0;
	if(!oldcontent) return false;
	var domeone=scrollbox.getelementsbytagname("li");// li
	if(!domeone.length) return false;
	var domeonelen = domeone.length;
	var oldlong=0;//旧总长
	var newlong=0;//新总长-外层框架长度
	var newcontent=oldcontent.innerhtml;
	if(dir=="1"){
		for(var i=0;i<domeonelen;i++){
			oldlong+=domeone[i].offsetwidth;
		}
		while(newlong<(scrollbox.offsetwidth)){	
			newcontent+=oldcontent.innerhtml;
			newlong+=oldlong;
			}
	}else if(dir=="2"){
		for(var i=0;i<domeonelen;i++){
			oldlong+=domeone[i].offsetheight;
		}
		while(newlong<(scrollbox.offsetheight)){	
			newcontent+=oldcontent.innerhtml;
			newlong+=oldlong;
			}
	}//判断新ul的总长
	oldcontent.innerhtml=newcontent;//生成新的ul
	var dometwo= scrollbox.getelementsbytagname("li")[domeonelen];//滚动结束位置
	var myroll = function(){
		if(dir=="1"){
			if(scrollbox.scrollleft == dometwo.offsetleft){
				scrollbox.scrollleft=0;
				}else{
					scrollbox.scrollleft++;
				}
			}else if(dir=="2"){
				if(scrollbox.scrolltop >= dometwo.offsettop){
					scrollbox.scrolltop=0;
				}else{
					scrollbox.scrolltop++;
				}
			}else if(dir=="3")
			{
				if(scrollbox.scrollleft == dometwo.offsetleft){
				scrollbox.scrollleft=scrollbox.offsetwidth;
				}else{
					scrollbox.scrollleft--;
				}
			}
		}//滚动
	var timer = setinterval(myroll,vt);//周期性调用滚动
	scrollbox.onmouseover=function(){clearinterval(timer)}
	scrollbox.onmouseout=function(){timer=setinterval(myroll,vt)}
}// id=最外层遮挡框架id ,滚动方式dir=1，2 分别对应左 上,vt滚动速度；
//tab选项卡