// javascript document

//��ת�˵�
function mm_o(selobj){ 
		window.open(selobj.options[selobj.selectedindex].value);
		}
		
//������
 window.onload=displaymenu;
 function displaymenu(){
 //��ȡ�˵�id
   var menu=getid("menu");
   
  //����2���˵���3��
  // for(var i=0;i<gettns(menu,"ul").length;i++){
//     gettns(menu,"ul")[i].style.display="none";
//   }
  
  //��ȡ�˵�����li
 var menu_li_1=gettns(menu,"li");
  //������ʾ�˵�
 for(var i=0;i<menu_li_1.length;i++){
  if(menu_li_1[i].getelementsbytagname("ul").length>0){
    menu_li_1[i].onmouseover=displaychildmenu;
 menu_li_1[i].onmouseout=disappearchildmenu;
  }
 }
 }
 //��ȡid����
 function getid(elem){
   return document.getelementbyid(elem);
 }
 //��ȡtagname
 function gettns(elem,name){
   return (elem || document).getelementsbytagname(name);
 }
 //��ʾ�˵�����
 function displaychildmenu(){
   gettns(this,"ul")[0].style.display="block";
 } 
 //���ز˵�����
 function disappearchildmenu(){
   for(var i=0;i<gettns(this,"ul").length;i++){
    gettns(this,"ul")[i].style.display="none";
   }
 }

//��ҵ����logo ���ҹ���
$(document).ready(function(){
    $("#box").jcarousellite({
        btnprev: "#next",
		btnnext: "#prev",
   		auto: 8000,//ͼƭͣ��ʱ��
   		scroll: 4,//ÿ�ι������ǵ�ͼƭ����
   		speed: 1000, //�����ٶȣ�0�dz�������ξ�������խ�� ���ƶ�խ����
   		vertical: false,//����true��������false��
   		visible: 4, //��ʾ������
   		circular: true //�ƿ�ѭ��
    });
	$("#boximg ul li:not(:first)").hide();
	$("#box ul li").each(function(i){
		$(this).click(function(){
			$("#boximg ul li").hide();
			$($("#boximg ul li")[i%($("#box ul li").length/3)]).fadein("slow");
			})
		})
});


//��ҳͷ�����ź���
$(document).ready(function(){
    $("#headlinebox").jcarousellite({
        btnprev: "#headlinenext",
		btnnext: "#headlineprev",
   		auto: 8000, //ͼƭͣ��ʱ��
   		scroll: 1, //ÿ�ι������ǵ�ͼƭ����
   		speed: 300, //�����ٶȣ�0�dz�������ξ�������խ�� ���ƶ�խ����
   		vertical: true, //����true��������false��
   		visible: 1, //��ʾ������
   		circular: true //�ƿ�ѭ��
    });
	$("#headlineboximg ul li:not(:first)").hide();
	$("#headlinebox ul li").each(function(i){
		$(this).click(function(){
			$("#headlineboximg ul li").hide();
			$($("#headlineboximg ul li")[i%($("#headlinebox ul li").length/1)]).fadein("slow");
			})
		})
});


/* �޷���� */
	/* html�ṹ
	<div id="j_productlist">
	<ul class="j_items">
	<li class="j_item"></li>
	<li class="j_item"></li>
	......
	</ul>
	</div>	
	*/
	$.fn.scrolling = function(option) {
		var setting = {
			loop: 0,
			direction: 'left',
			scrollamount: 1,
			scrolldelay: 50
		};
		return this.each(function() {
			if (option) var opts = $.extend({}, setting, option);

			var $this = $(this);
			var $list = $this.find(".j_items");
			var $item = $this.find(".j_item");
			var distance = 0;
			var size = (opts.direction == "left") ? $this.width() : $this.height();

			$item.each(function(i) {
				distance += (opts.direction == "left") ? $(this).outerwidth() : $(this).outerheight();
			})
			if (distance <= size) return;
			$list.append($item.clone()).css((opts.direction == "left") ? "width" : "height", distance * 2 + "px");
			function move() {
				if (opts.direction == "left") {
					$this.scrollleft($this.scrollleft() + opts.scrollamount);
					if ($this.scrollleft() >= distance) {
						$list.find("li:lt(" + $item.size() + ")").appendto($list);
						$this.scrollleft(0);
					}
				} else {
					$this.scrolltop($this.scrolltop() + opts.scrollamount);
					if ($this.scrolltop() >= distance) {
						$list.find("li:lt(" + $item.size() + ")").appendto($list);
						$this.scrolltop(0);
					}
				}
			}
			var play = setinterval(move, opts.scrolldelay);
			$item.hover(
				function() {
					clearinterval(play);
				},
				function() {
					clearinterval(play);
					play = setinterval(move, opts.scrolldelay);
				}
			);
		});
	};
	// ������־����
	/* html�ṹ
	<div id="j_emagashow">
	<ul class="hide j_imgurl">
	<li>1.jpg</li>
	<li>2.jpg</li>
	......
	</ul>
	<img src="" class="bigpic hide j_pic" />
		<em class="l"></em><em class="r"></em>
	</div>	

//��ҳ�ӹ�˾�б������
/*--------------------------------------------------------------------------------------------------*/
$.fn.extend({//��ӹ����¼�//by jun
	mousewheel:function(func){
		return this.each(function(){
			var _self = this;
		    _self.d = 0; //��������
			if($.browser.msie||$.browser.safari){
			   _self.onmousewheel=function(){_self.d = event.wheeldelta;event.returnvalue = false;func && func.call(_self);};
			}else{
			   _self.addeventlistener("dommousescroll",function(e){
					_self.d = e.detail>0?-1:1;
					e.preventdefault();
					func && func.call(_self);
			   },false); 
			}
		});
	}
});
$.fn.extend({
	jscroll:function(j){
		return this.each(function(){
			j = j || {}
			j.bar = j.bar||{};//2������
			j.btn = j.btn||{};//2������
			j.bar.bg = j.bar.bg||{};//3������
			j.bar.bd = j.bar.bd||{};//3������
			j.btn.ubg = j.btn.ubg||{};//3������
			j.btn.dbg = j.btn.dbg||{};//3������
			var jun = { w:"15px"
						,bgurl:""
						,bg:"#efefef"
						,bar:{  pos:"up"
								,bd:{out:"#b5b5b5",hover:"#ccc"}
								,bg:{out:"#fff",hover:"#fff",focus:"green"}}
						,btn:{  btn:true
								,ubg:{out:"#ccc",hover:"#fff",focus:"green"}
								,dbg:{out:"#ccc",hover:"#fff",focus:"green"}}
						,fn:function(){}}
			j.w = j.w||jun.w;
			j.bgurl = j.bgurl||jun.bgurl;
			j.bg = j.bg||jun.bg;
				j.bar.pos = j.bar.pos||jun.bar.pos;
					j.bar.bd.out = j.bar.bd.out||jun.bar.bd.out;
					j.bar.bd.hover = j.bar.bd.hover||jun.bar.bd.hover;
					j.bar.bg.out = j.bar.bg.out||jun.bar.bg.out;
					j.bar.bg.hover = j.bar.bg.hover||jun.bar.bg.hover;
					j.bar.bg.focus = j.bar.bg.focus||jun.bar.bg.focus;
				j.btn.btn = j.btn.btn!=undefined?j.btn.btn:jun.btn.btn;
					j.btn.ubg.out = j.btn.ubg.out||jun.btn.ubg.out;
					j.btn.ubg.hover = j.btn.ubg.hover||jun.btn.ubg.hover;
					j.btn.ubg.focus = j.btn.ubg.focus||jun.btn.ubg.focus;
					j.btn.dbg.out = j.btn.dbg.out||jun.btn.dbg.out;
					j.btn.dbg.hover = j.btn.dbg.hover||jun.btn.dbg.hover;
					j.btn.dbg.focus = j.btn.dbg.focus||jun.btn.dbg.focus;
			j.fn = j.fn||jun.fn;
			var _self = this;
			var stime,sp=0,isup=0;
			$(_self).css({overflow:"hidden",position:"relative",padding:"0px 0px 0px 20px"});
			var dw = $(_self).width(), dh = $(_self).height()-1;
			var sw = j.w ? parseint(j.w) : 21;
			var sl = dw - sw
			var bw = j.btn.btn==true ? sw : 0;
			if($(_self).children(".jscroll-c").height()==null){//�����լ��
		$(_self).wrapinner("<div class='jscroll-c' style='top:0px; z-index:9999; zoom:1; position:relative'></div>");
			$(_self).children(".jscroll-c").prepend("<div style='height:0px; overflow:hidden'></div>");
			$(_self).append("<div class='jscroll-e' unselectable='on' style=' height:100%;top:0px;left:0;-moz-user-select:none;position:absolute;overflow:hidden;z-index:10000;'><div class='jscroll-u' style='position:absolute;top:0px;width:100%;left:0;background:blue;overflow:hidden'></div><div class='jscroll-h'  unselectable='on' style='background:green;position:absolute;left:0;-moz-user-select:none;border:1px solid'></div><div class='jscroll-d' style='position:absolute;bottom:0px;width:100%;left:0;background:blue;overflow:hidden'></div></div>");
			}
			var jscrollc = $(_self).children(".jscroll-c");
			var jscrolle = $(_self).children(".jscroll-e");
			var jscrollh = jscrolle.children(".jscroll-h");
			var jscrollu = jscrolle.children(".jscroll-u");
			var jscrolld = jscrolle.children(".jscroll-d");
			if($.browser.msie){document.execcommand("backgroundimagecache", false, true);}
			jscrollc.css({"padding-right":sw});
			jscrolle.css({width:sw,background:j.bg,"background-image":j.bgurl});
			jscrollh.css({top:bw,background:j.bar.bg.out,"background-image":j.bgurl,"border-color":j.bar.bd.out,width:sw-2});
			jscrollu.css({height:bw,background:j.btn.ubg.out,"background-image":j.bgurl});
			jscrolld.css({height:bw,background:j.btn.dbg.out,"background-image":j.bgurl});
			jscrollh.hover(function(){if(isup==0)$(this).css({background:j.bar.bg.hover,"background-image":j.bgurl,"border-color":j.bar.bd.hover})},function(){if(isup==0)$(this).css({background:j.bar.bg.out,"background-image":j.bgurl,"border-color":j.bar.bd.out})})
			jscrollu.hover(function(){if(isup==0)$(this).css({background:j.btn.ubg.hover,"background-image":j.bgurl})},function(){if(isup==0)$(this).css({background:j.btn.ubg.out,"background-image":j.bgurl})})
			jscrolld.hover(function(){if(isup==0)$(this).css({background:j.btn.dbg.hover,"background-image":j.bgurl})},function(){if(isup==0)$(this).css({background:j.btn.dbg.out,"background-image":j.bgurl})})
			var sch = jscrollc.height();
			//var sh = math.pow(dh,2) / sch ;//math.pow(x,y)x��y�η�
			var sh = (dh-2*bw)*dh / sch
			if(sh<10){sh=10}
			var wh = sh/6//����ʱ����������
		//	sh = parseint(sh);
			var curt = 0,allows=false;
			jscrollh.height(sh);
			if(sch<=dh){jscrollc.css({padding:0});jscrolle.css({display:"none"})}else{allows=true;}
			if(j.bar.pos!="up"){
			curt=dh-sh-bw;
			sett();
			}
			jscrollh.bind("mousedown",function(e){
				j['fn'] && j['fn'].call(_self);
				isup=1;
				jscrollh.css({background:j.bar.bg.focus,"background-image":j.bgurl})
				var pagey = e.pagey ,t = parseint($(this).css("top"));
				$(document).mousemove(function(e2){
					 curt =t+ e2.pagey - pagey;//pagey����������������λ�ã�screeny��ļ�����������λ��
						sett();
				});
				$(document).mouseup(function(){
					isup=0;
					jscrollh.css({background:j.bar.bg.out,"background-image":j.bgurl,"border-color":j.bar.bd.out})
					$(document).unbind();
				});
				return false;
			});
			jscrollu.bind("mousedown",function(e){
			j['fn'] && j['fn'].call(_self);
				isup=1;
				jscrollu.css({background:j.btn.ubg.focus,"background-image":j.bgurl})
				_self.timesett("u");
				$(document).mouseup(function(){
					isup=0;
					jscrollu.css({background:j.btn.ubg.out,"background-image":j.bgurl})
					$(document).unbind();
					cleartimeout(stime);
					sp=0;
				});
				return false;
			});
			jscrolld.bind("mousedown",function(e){
			j['fn'] && j['fn'].call(_self);
				isup=1;
				jscrolld.css({background:j.btn.dbg.focus,"background-image":j.bgurl})
				_self.timesett("d");
				$(document).mouseup(function(){
					isup=0;
					jscrolld.css({background:j.btn.dbg.out,"background-image":j.bgurl})
					$(document).unbind();
					cleartimeout(stime);
					sp=0;
				});
				return false;
			});
			_self.timesett = function(d){
				var self=this;
				if(d=="u"){curt-=wh;}else{curt+=wh;}
				sett();
				sp+=2;
				var t =500 - sp*50;
				if(t<=0){t=0};
				stime = settimeout(function(){self.timesett(d);},t);
			}
			jscrolle.bind("mousedown",function(e){
					j['fn'] && j['fn'].call(_self);
							curt = curt + e.pagey - jscrollh.offset().top - sh/2;
							asett();
							return false;
			});
			function asett(){				
						if(curt<bw){curt=bw;}
						if(curt>dh-sh-bw){curt=dh-sh-bw;}
						jscrollh.stop().animate({top:curt},100);
						var sct = -((curt-bw)*sch/(dh-2*bw));
						jscrollc.stop().animate({top:sct},1000);
			};
			function sett(){				
						if(curt<bw){curt=bw;}
						if(curt>dh-sh-bw){curt=dh-sh-bw;}
						jscrollh.css({top:curt});
						var sct = -((curt-bw)*sch/(dh-2*bw));
						jscrollc.css({top:sct});
			};
			$(_self).mousewheel(function(){
					if(allows!=true) return;
					j['fn'] && j['fn'].call(_self);
						if(this.d>0){curt-=wh;}else{curt+=wh;};
						sett();
			})
		});
	}
});

// ��ҳ�������žۼ�
$(function()
{
	//�����²�с��ť
	var length = $('#slideshow_photo a').length;
	for(var i = 0; i < length; i++)
	{
		$('<div class="slideshow-bt" index="'+(length-i)+'"></div>').appendto('#slideshow_footbar');
    }
    $('#slideshow_footbar .slideshow-bt:last').addclass('bt-on');
    $('#slideshow_footbar .slideshow-bt').mouseenter(function(e)
    {
		slideto(this);
    });

	
    var indexallowautoslide = true;
    $('#slideshow_wrapper').mouseenter(function()
    {
		indexallowautoslide = false;
    }).mouseleave(function()
    {
		indexallowautoslide = true;
    });

	//����
    setinterval(function()
    {
		if (indexallowautoslide) slidedown();
    },3000);

});

function slidedown()
{
	var currentbt = $('#slideshow_footbar .slideshow-bt.bt-on');
    if (currentbt.length <= 0) return;
    var nxt = currentbt.get(0).previoussibling;
    slideto(nxt?nxt:$('#slideshow_footbar .slideshow-bt:last').get(0));
}

function slideto(o)
{
	if (!o) return;
	var currentindex = $('#slideshow_footbar .slideshow-bt.bt-on').attr('index'),
		current = $('#slideshow_photo a[index='+currentindex+']');
	var nxt = $('#slideshow_photo a[index='+$(o).attr('index')+']');
	if (currentindex == $(o).attr('index')) return;
	
	if (nxt.find('img[imgsrc]').length > 0)
	{
		var img =nxt.find('img[imgsrc]');
		img.attr('src',img.attr('imgsrc')).removeattr('imgsrc');
	}
	
	$('#slideshow_footbar .slideshow-bt.bt-on').removeclass('bt-on');
	$(o).addclass('bt-on');
	
	nxt.css('z-index',2);
	
	current.css('z-index',3).fadeout(500,function()
	{
		$(this).css('z-index','1').show();
		var img = nxt.next('a').find('img[imgsrc]');
		if (img.length > 0)
		{
			img.attr('src',img.attr('imgsrc')).removeattr('imgsrc');
		}
	});
}
//slideshow end


// ʒ��ͼ����� star
var imgtab = function(){
	$("#tabbox .tab_1").hover(function(){
		var n = $("#tabbox .tab_1").index($(this));
		$(this).animate({"margin-top":"0","height":"120px"},300)
		$(this).find("div:eq(0)").fadeout(50);
		$(this).find("div:eq(1)").hide();		
		$(this).find("div:eq(1)").animate({"top":"0"},100)
		$(this).find("div:eq(1)").fadein(300);

		
		$("#img dd").eq(n).delay(200).fadein(300).siblings("dd").fadeout(300);
	},function(){
		$(this).animate({"margin-top":"60px","height":"60px"},300)
		
		$(this).find("div:eq(1)").fadeout(100);
		$(this).find("div:eq(1)").animate({"top":"60"},50,function(){
			$(this).siblings("div").fadein(100);
		})
		
		$("#img dd").fadeout(300);
	})
}

var menu = function(){
	$("#menu dd").mouseover(function(){
		//$(this).find("div").show();
		if($(this).find("span")){
			$(this).find("span").show();
		}
	})
	$("#menu dd").mouseout(function(){
		//$(this).find("div").hide();
		if($(this).find("span")){
			$(this).find("span").hide();
		}
	})
}

var friendlink=function(o,p){
	var a=0,go,stop,tag = $(o),b,c;
		//b=tag.find(p).width();
	var auto = function(){
		//alert(b)
		b=tag.find(p).width();
		c=tag.scrollleft()
		go = settimeout(auto,20);
		if(c<b){
			tag.scrollleft(a);
			a+=1;
		}else{
			a=0;
			tag.scrollleft(a);
		}
		//go();
	}
	tag.find("a").hover(function(){
		cleartimeout(go);
	},function(){
		auto();
	})
	auto();
}
// ʒ��ͼ����� end


//�������λ
var ad = $("#jhook_twinadl, #jhook_twinadr");
var close = $("#jhook_twinadl span, #jhook_twinadr span");
$(function(){
	if (document.documentelement.clientwidth<1130) ad.hide();
});
window.onscroll = function() {
	var st = document.body.scrolltop;
	if (st==0) st = document.documentelement.scrolltop;
	var cw = document.documentelement.clientwidth;
	var ch = document.documentelement.clientheight;
	if (cw<1130) ad.hide();
	ad.css("top", "0");
	ad.css("margin-top", st + (ch/2 - 110) + "px");
}
window.onresize = function() {
	if (document.documentelement.clientwidth<1130) {
		ad.hide();
	} else {
		ad.show();
	}
}
close.click(function() {
	$(this).parent().hide();
});

/* ���ͻǹ�� */
function findobj(theobj, thedoc)
{
  var p, i, foundobj;
  
  if(!thedoc) thedoc = document;
  if( (p = theobj.indexof("?")) > 0 && parent.frames.length)
  {
    thedoc = parent.frames[theobj.substring(p+1)].document;
    theobj = theobj.substring(0,p);
  }
  if(!(foundobj = thedoc[theobj]) && thedoc.all) foundobj = thedoc.all[theobj];
  for (i=0; !foundobj && i < thedoc.forms.length; i++) 
    foundobj = thedoc.forms[i][theobj];
  for(i=0; !foundobj && thedoc.layers && i < thedoc.layers.length; i++) 
    foundobj = findobj(theobj,thedoc.layers[i].document);
  if(!foundobj && document.getelementbyid) foundobj = document.getelementbyid(theobj);
  
  return foundobj;
}
function showhidelayers()
{ 
  var i, visstr, obj, args = showhidelayers.arguments;
  for (i=0; i<(args.length-2); i+=3)
  {
    if ((obj = findobj(args[i])) != null)
    {
      visstr = args[i+2];
      if (obj.style)
      {
        obj = obj.style;
        if(visstr == 'show') visstr = 'visible';
        else if(visstr == 'hide') visstr = 'hidden';
      }
      obj.visibility = visstr;
    }
  }
}