// JavaScript Document
//----------------------导航菜单-----------------------
//初始化
// def 的值与“m_n”的“n”值相同，eg:当前页面menu的li的id=“m_1”,则def=1
//var def="1";
function mover(object){
  //主菜单
  var mm=document.getElementById("m_"+object);
  mm.className="m_li_a";
  //初始主菜单先隐藏效果
  if(def!=0){
    var mdef=document.getElementById("m_"+def);
    mdef.className="m_li";
  }
  //子菜单
  var ss=document.getElementById("s_"+object);
  ss.style.display="block";
  //初始子菜单先隐藏效果
  if(def!=0){
    var sdef=document.getElementById("s_"+def);
    sdef.style.display="none";
  }
}

function mout(object){
  //主菜单
  var mm=document.getElementById("m_"+object);
  mm.className="m_li";
  //初始主菜单还原效果
  if(def!=0){
    var mdef=document.getElementById("m_"+def);
    mdef.className="m_li_a";
  }
  //子菜单
  var ss=document.getElementById("s_"+object);
  ss.style.display="none";
  //初始子菜单还原效果
  if(def!=0){
    var sdef=document.getElementById("s_"+def);
    sdef.style.display="block";
  }
}

//------------------------焦点图------------------------

var $ = function (id) {
	return "string" == typeof id ? document.getElementById(id) : id;
};

var Class = {
  create: function() {
	return function() {
	  this.initialize.apply(this, arguments);
	}
  }
}

Object.extend = function(destination, source) {
	for (var property in source) {
		destination[property] = source[property];
	}
	return destination;
}

var TransformView = Class.create();
TransformView.prototype = {
  //容器对象,滑动对象,切换参数,切换数量
  initialize: function(container, slider, parameter, count, options) {
	if(parameter <= 0 || count <= 0) return;
	var oContainer = $(container), oSlider = $(slider), oThis = this;

	this.Index = 0;//当前索引
	
	this._timer = null;//定时器
	this._slider = oSlider;//滑动对象
	this._parameter = parameter;//切换参数
	this._count = count || 0;//切换数量
	this._target = 0;//目标参数
	
	this.SetOptions(options);
	
	this.Up = !!this.options.Up;
	this.Step = Math.abs(this.options.Step);
	this.Time = Math.abs(this.options.Time);
	this.Auto = !!this.options.Auto;
	this.Pause = Math.abs(this.options.Pause);
	this.onStart = this.options.onStart;
	this.onFinish = this.options.onFinish;
	
	oContainer.style.overflow = "hidden";
	oContainer.style.position = "relative";
	
	oSlider.style.position = "absolute";
	oSlider.style.top = oSlider.style.left = 0;
  },
  //设置默认属性
  SetOptions: function(options) {
	this.options = {//默认值
		Up:			true,//是否向上(否则向左)
		Step:		5,//滑动变化率
		Time:		10,//滑动延时
		Auto:		true,//是否自动转换
		Pause:		5000,//停顿时间(Auto为true时有效)
		onStart:	function(){},//开始转换时执行
		onFinish:	function(){}//完成转换时执行
	};
	Object.extend(this.options, options || {});
  },
  //开始切换设置
  Start: function() {
	if(this.Index < 0){
		this.Index = this._count - 1;
	} else if (this.Index >= this._count){ this.Index = 0; }
	
	this._target = -1 * this._parameter * this.Index;
	this.onStart();
	this.Move();
  },
  //移动
  Move: function() {
	clearTimeout(this._timer);
	var oThis = this, style = this.Up ? "top" : "left", iNow = parseInt(this._slider.style[style]) || 0, iStep = this.GetStep(this._target, iNow);
	
	if (iStep != 0) {
		this._slider.style[style] = (iNow + iStep) + "px";
		this._timer = setTimeout(function(){ oThis.Move(); }, this.Time);
	} else {
		this._slider.style[style] = this._target + "px";
		this.onFinish();
		if (this.Auto) { this._timer = setTimeout(function(){ oThis.Index++; oThis.Start(); }, this.Pause); }
	}
  },
  //获取步长
  GetStep: function(iTarget, iNow) {
	var iStep = (iTarget - iNow) / this.Step;
	if (iStep == 0) return 0;
	if (Math.abs(iStep) < 1) return (iStep > 0 ? 1 : -1);
	return iStep;
  },
  //停止
  Stop: function(iTarget, iNow) {
	clearTimeout(this._timer);
	this._slider.style[this.Up ? "top" : "left"] = this._target + "px";
  }
};



window.onload=function(){
	function Each(list, fun){
		for (var i = 0, len = list.length; i < len; i++) { fun(list[i], i); }
	};
	
	
	
	var objs = $("idNum").getElementsByTagName("li");
	//网商焦点图个数
	var tv = new TransformView("idTransformView", "idSlider", 100, 1, {
		onStart : function(){ Each(objs, function(o, i){ o.className = tv.Index == i ? "on" : ""; }) }//按钮样式
	});
	
	tv.Start();
	
	Each(objs, function(o, i){
		o.onmouseover = function(){
			o.className = "on";
			tv.Auto = false;
			tv.Index = i;
			tv.Start();
		}
		o.onmouseout = function(){
			o.className = "";
			tv.Auto = true;
			tv.Start();
		}
	})
	
	////////////////////////test2
	
	
	
	var objs2 = $("idNum2").getElementsByTagName("li");
	//网货焦点图个数	
	var tv2 = new TransformView("idTransformView2", "idSlider2", 100, 3, {
		onStart: function(){ Each(objs2, function(o, i){ o.className = tv2.Index == i ? "on" : ""; }) },//按钮样式
        Up: true
	});
	
	tv2.Start();
	
	Each(objs2, function(o, i){
		o.onmouseover = function(){
			o.className = "on";
			tv2.Auto = false;
			tv2.Index = i;
			tv2.Start();
		}
		o.onmouseout = function(){
			o.className = "";
			tv2.Auto = true;
			tv2.Start();
		}
	})

///////////////////////////////////
	
//	$("idStop").onclick = function(){ tv2.Auto = false; tv2.Stop(); }
//	$("idStart").onclick = function(){ tv2.Auto = true; tv2.Start(); }
//	$("idNext").onclick = function(){ tv2.Index++; tv2.Start(); }
//	$("idPre").onclick = function(){ tv2.Index--;tv2.Start(); }
//	$("idFast").onclick = function(){ if(--tv2.Step <= 0){tv2.Step = 1;} }
//	$("idSlow").onclick = function(){ if(++tv2.Step >= 10){tv2.Step = 10;} }
//	$("idReduce").onclick = function(){ tv2.Pause-=1000; if(tv2.Pause <= 0){tv2.Pause = 0;} }
//	$("idAdd").onclick = function(){ tv2.Pause+=1000; if(tv2.Pause >= 5000){tv2.Pause = 5000;} }
//	
//	$("idReset").onclick = function(){
//		tv2.Step = Math.abs(tv2.options.Step);
//		tv2.Time = Math.abs(tv2.options.Time);
//		tv2.Auto = !!tv2.options.Auto;
//		tv2.Pause = Math.abs(tv2.options.Pause);
//	}
	
}


//*-----------------------下拉菜单------------------*/
function displaySubMenu(li) {
            var subMenu = li.getElementsByTagName("ul")[0];
            subMenu.style.display = "block";
        }
function hideSubMenu(li) {
            var subMenu = li.getElementsByTagName("ul")[0];
            subMenu.style.display = "none";
        }