//banner
function banner(obj1){
	var obj1=obj1;//传入参数
	var obj=new object;
	obj.nowindex=0;//banner切换的序号
	obj.interval="";//banner切换计时器
	obj.banner=obj1.banner;//banner框架
	obj.btn=obj1.btn;//banner按钮框架
	obj.btnurl=obj1.btnurl;//按钮路径
	obj.bool=obj1.bool||true;//判断切换
	obj.btnurlon=obj1.btnurlon;//;按钮被点击路径
	obj.selnum=obj1.selnum;
	obj.allnum=obj1.allnum;
	obj.getmun=function(){//获取banner个数
		var mun=$(obj.banner).length-1;
		return mun;
	}
	obj.mun=0;//banner个数
	//添加按钮
	obj.btnappend=function(){
		$(obj.banner).not($(obj.banner+":eq(0)")).stop(false,true).hide();
		$(obj.banner+":eq(0)").show();
		$(obj.banner+":eq(0) .contentinfo").show();
		$(obj.allnum).text(obj.mun+1);
		$(obj.btn).append("<div class='bannernavchild on' id='bannerbtn0' onclick='bannerbtnclick(0)' ></div>");
		for(var i=1;i<=obj.mun;i++){
			$(this.btn).append("<div class='bannernavchild' id='bannerbtn"+i+"' onclick='bannerbtnclick("+i+")' ></div>");
		}
	}
	//确定哪个为白色
	obj.btnposition=function(btnindex){
		$(obj.selnum).text(btnindex+1);
		$(obj.btn+" .bannernavchild").removeclass("on");
		$(obj.btn+" .bannernavchild:eq("+btnindex+")").addclass("on");
	}
	//切换事件
	obj.bannerdo=function(btnindex){
		$(obj.banner+":eq("+obj.nowindex+") .contentinfo").stop(true,true).hide();
		$(obj.banner+":eq("+obj.nowindex+")").stop(true,true).delay(600).fadeout(500);
		
		if(btnindex||btnindex==0){
			obj.nowindex=btnindex;
		}else{
			obj.nowindex==obj.mun?obj.nowindex=0:obj.nowindex++;
		}
		obj.btnposition(obj.nowindex);
		$(obj.banner+":eq("+obj.nowindex+")").stop(true,true).delay(600).fadein(500);
		$(obj.banner+":eq("+obj.nowindex+") .contentinfo").stop(true,true).show();

	}
	

	return obj;
}
// banner over 
var banner1=new banner({
	banner:".banner .contents .content",
	btn:".bannernav",
	btnurl:"/images/index/bannerbtn.jpg",
	btnurlon:"/images/index/bannerbtnon.jpg",
	selnum:"#selnum",
	allnum:"#allnum"
});
//白点被点击
function bannerbtnclick(btnindex){
	//alert("a");
	if(btnindex=="-"){
		banner1.nowindex==0?btnindex=banner1.mun:btnindex=banner1.nowindex-1;
	}else if(btnindex=="+"){
		banner1.nowindex==banner1.mun?btnindex=0:btnindex=banner1.nowindex+1;
	}
	clearinterval(banner1.interval);
	banner1.bannerdo(btnindex);
	banner1.btnposition(btnindex);
	banner1.interval=setinterval(function(){
		banner1.bannerdo(null);
	},5000);
}

function btn2click(btnindex){
	if(btnindex=="-"){
		banner1.nowindex==0?btnindex=banner1.mun:btnindex=banner1.nowindex-1;
	}else if(btnindex=="+"){
		banner1.nowindex==banner1.mun?btnindex=0:btnindex=banner1.nowindex+1;
	}
	clearinterval(banner1.interval);
	banner1.bannerdo(btnindex);
	banner1.btnposition(btnindex);
	banner1.interval=setinterval(function(){
		banner1.bannerdo(null);
	},5000);
}


$(function(){
	
	/*banner*/
	banner1.mun=banner1.getmun();
	banner1.btnappend();
	banner1.interval=setinterval(function(){
		banner1.bannerdo(null);
	},5000);
	//$(".banner").mouseover(function(){
//	  $(".bannerleft").show();
//	  $(".bannerright").show();
//	});
//	$(".banner").mouseout(function(){
//	  $(".bannerleft").hide();
//	  $(".bannerright").hide();
//	});
});