// javascript document
var ie6 = !-[1,] && !window.xmlhttprequest; 


//导航
var $nav=$('.nav').find('.li'),
	 $navcur=$('.nav').find('.cur').length?$('.nav').find('.cur').index():0,
	 $navline=$('.nav_line');
$navline.css('left',$navcur*$nav.eq(0).width());
$nav.mouseenter(function(){
	$(this).addclass('hover');
	$navline.stop(1,0).animate({left:$(this).index()*$nav.eq(0).width()},200)
	}).mouseleave(function(){
		$(this).removeclass('hover');
		$navline.stop(1,0).animate({left:($('.nav').find('.cur').length?$('.nav').find('.cur').index():0)*$nav.eq(0).width()},200)
		});
		
//slide func
$.fn.slide=function(){
var defaults,opts,data_opts,$this,$b_,t,n=0,count,$nav,$p,$n;
	defaults={
		fade:true,
		auto:true,
		time:4000
		}
	$this=$(this);
	if($this.attr('data-slide')!==''){eval('data_opts='+$this.attr('data-slide'));}
	opts=$.extend({},defaults,data_opts);
	$b_=$this.children('.ban_c');
	count=$b_.length;
	if($this.find('.ban_nav').length){
		$nav=$this.find('.ban_nav')
		}else{
				$nav=$('<div class="ban_nav"></div>');
				for(i=0;i<count;i++){
					$nav.append('<a>'+(i+1)+'</a>')
					}
				$this.append($nav)
			}
	$this.append('<s class="left" ></s> <s class="right" ></s>');
	$nav.children('a').eq(0).addclass('on');
	$nav.children('a').eq(1).addclass('ban_next');
	$nav.children('a').eq(count-1).addclass('ban_prev');
	$b_.hide().eq(0).show();
	if(ie6){$b_.height($b_.attr('height') || $this.height())}
	$nav.children('a').each(function(index) {
		$(this).click(function(event) {
			event.preventdefault();
			if (index >= count){
				return
				}else{
					$nav.children('a').eq(index-1).addclass('ban_prev').siblings().removeclass('ban_prev');
					$nav.children('a').eq(index==count-1 ? 0 : index+1).addclass('ban_next').siblings().removeclass('ban_next');
							};
			if(opts.fade){
				$b_.fadeout(500).eq(index).fadein(800)
				}else{
					$b_.hide().eq(index).show()
					}
			$(this).addclass('on').siblings().removeclass("on");
			n=index
		})
	});
	$p=$(this).find('.left');
	$n=$(this).find('.right');
	if(opts.auto){
		t = setinterval(function(){
			showauto()
			}, opts.time);
		$this.hover(function(){clearinterval(t)}, function(){t = setinterval(function(){
			showauto()
			}, opts.time);});
		}
	$p.click(function(){showpre()})
	$n.click(function(){showauto()})
	function showauto(){
		n = n >=(count - 1) ? 0 : ++n;
		$nav.find('a').eq(n).trigger('click')
	}
	function showpre(){
		n = n <=0 ? (count - 1) : --n;
		$nav.find('a').eq(n).trigger('click')
	}
}
$('.slide').each(function() {
   $(this).slide()
});

//1026 add:ie6定位修复
$.fn.ie6fix=function(){
	var $this=$(this),
		 positop=$this.css('top')!='auto' ? true : ($this.css('bottom')!='auto' ? false : null),
		 selfhei=$(this).outerheight(true),
		 $h=$(window).height(),	
		 posival=parseint($this.css(positop ? 'top' : 'bottom'));
	if(positop!=null){
		$this.css('top',positop ? posival : $h-selfhei-posival).css('position','absolute');
		$(window).resize(function(){
			$h=$(this).height();
			$this.css('top',positop ? posival : $h-selfhei-posival);
		})
		$(window).scroll(function(){
			$h=$(this).height();
			$this.css('top',positop ? $(this).scrolltop()+posival : $h-selfhei-posival+$(this).scrolltop());
		})
	}else{
		console.warn('ie6fix():对象缺少top或bottom属性')
		}
};
if(ie6){$('.ie6fix').each(function() {$(this).ie6fix()})};

//纵向滚动
$.fn.scroll_v=function(opt,callback){
	 if(!opt) var opt={};
	 var _btnup = $("#"+ opt.up),
	 	 _btndown = $("#"+ opt.down),
	 	 timerid,
	 	 _this=this.eq(0).find("ul:first"),
	    lineh=_this.find("li").outerheight(true), 
		 line=opt.line?parseint(opt.line,10):parseint(this.height()/lineh,10), 
		 speed=opt.speed?parseint(opt.speed,10):500,
		 timer=opt.timer || 30000,
		 cols,lasted;
	 line=line?line:1;
	 var upheight=0-line*lineh;
	 var scrollup=function(){
		 	cols=math.floor(_this.width()/_this.find("li").width());
			_btnup.unbind("click",scrollup);
			_this.animate({margintop:upheight},speed,function(){
					_this.find("li:lt("+cols+")").appendto(_this);
					_this.css('margintop',0);
					_btnup.bind("click",scrollup);
			})
	 };
	 var scrolldown=function(){
		 lasted=_this.find("li").length-math.floor(_this.width()/_this.find("li").width())-1;
			_btndown.unbind("click",scrolldown);
			for(i=1;i<=line;i++){_this.find("li:gt("+lasted+")").show().prependto(_this)};
			_this.css({margintop:upheight});
			_this.animate({margintop:0},speed,function(){
				_btndown.bind("click",scrolldown)
			})
	 };
	 var autoplay = function(){if(timer)timerid = window.setinterval(scrollup,timer)};
	 var autostop = function(){if(timer)window.clearinterval(timerid)};
	 _this.hover(autostop,autoplay).mouseout();
	 _btnup.click( scrollup ).hover(autostop,autoplay);
	 _btndown.click( scrolldown ).hover(autostop,autoplay);
  };    

/*内页导航*/
function settopselect(num){
	try{
		$("#top"+num).addclass("cur");
		$('.nav_line').css('left',($('.nav').find('.cur').length?$('.nav').find('.cur').index():0)*$('.nav').find('.li').eq(0).width());
	}catch(e){}	
};