//下拉菜单
function menufix() {
	var sfEls=document.getElementById("jieqi_menu");
	if(sfEls) sfEls=sfEls.getElementsByTagName("li");
	if(sfEls){
		for(var i=0; i<sfEls.length; i++){
			sfEls[i].onmouseover=function(){ this.className="sfhover"; }
			sfEls[i].onmouseout=function(){ this.className="nohover"; }
			sfEls[i].onmousedown=function(){ this.className="sfhover"; }
			sfEls[i].onmouseup=function(){ this.className="sfhover"; }
		}
	}
}
if (document.all){
	window.attachEvent('onload',menufix);
}else{
	window.addEventListener('load',menufix,false);
}

//浮动提示框（显示title内容）
var tipname = "tips";
var tiptag = "a,label,div,img,span"; 
var tipx = 0;
var tipy = 15;
var tipobj = null;

function tipinit() {
	var tipNameSpaceURI = "http://www.w3.org/1999/xhtml";
	if(!tipContainerID){ var tipContainerID = tipname;}
	var tipContainer = document.getElementById(tipContainerID);

	if(!tipContainer) {
	  tipContainer = document.createElementNS ? document.createElementNS(tipNameSpaceURI, "div") : document.createElement("div");
		tipContainer.setAttribute("id", tipContainerID);
	  document.getElementsByTagName("body").item(0).appendChild(tipContainer);
	}

	if (!document.getElementById) return;
	tipobj = document.getElementById(tipname);
	if(tipobj) document.onmousemove = function(evt){tipmove(evt)};

	var a, sTitle, elements;
	
	var elementList = tiptag.split(",");
	for(var j = 0; j < elementList.length; j++)
	{	
		elements = document.getElementsByTagName(elementList[j]);
		if(elements)
		{
			for (var i = 0; i < elements.length; i ++)
			{
				a = elements[i];
				sTitle = a.getAttribute("title");				
				if(sTitle && typeof(a.onmouseover) != "function" && typeof(a.onmouseout) != "function")
				{
					a.setAttribute("tiptitle", sTitle);
					a.removeAttribute("title");
					a.removeAttribute("alt");
					a.onmouseover = function() {tipshow(this.getAttribute('tiptitle'))};
					a.onmouseout = function() {tiphide()};
				}
			}
		}
	}
}

function tipmove(evt) {
	if(tipobj.style.display == "block"){
		var x=0, y=0;
		if (document.all) {
			x = (document.documentElement && document.documentElement.scrollLeft) ? document.documentElement.scrollLeft : document.body.scrollLeft;
			y = (document.documentElement && document.documentElement.scrollTop) ? document.documentElement.scrollTop : document.body.scrollTop;
			x += window.event.clientX;
			y += window.event.clientY;
		} else {
			x = evt.pageX;
			y = evt.pageY;
		}
		tipobj.style.left = (x + tipx) + "px";
		tipobj.style.top = (y + tipy) + "px";
	}
}

function tipshow(text) {
	if (!tipobj) return;
	tipobj.innerHTML = text;
	tipobj.style.display = "block";
}

function tiphide() {
	if (!tipobj) return;
	tipobj.innerHTML = "";
	tipobj.style.display = "none";
}

if (document.all){
	window.attachEvent('onload',tipinit);
}else{
	window.addEventListener('load',tipinit,false);
} 

//tab效果
function selecttab(obj){
	var i = 0;
	var n = 0;
	var tabs = obj.parentNode.parentNode.getElementsByTagName("li"); 
	for(i=0; i<tabs.length; i++){
		tmp = tabs[i].getElementsByTagName("a")[0];
		if(tmp == obj){
			tmp.className="selected";
			n=i;
		}else{
			tmp.className="";
		}
 	}
	var tabchilds = obj.parentNode.parentNode.parentNode.parentNode.childNodes;
	var tabcontent;
	for(i=tabchilds.length-1; i>=0; i--){
		if(typeof tabchilds[i].tagName != "undefined" && tabchilds[i].tagName.toLowerCase() == "div"){
			tabcontent = tabchilds[i];
			break;
		}
	}
	var contents = tabcontent.childNodes;
	var k = 0;
	for(i=0; i<contents.length; i++){
		if(typeof contents[i].tagName != "undefined" && contents[i].tagName.toLowerCase() == "div"){
			contents[i].style.display = k==n ? "block" : "none";
			k++;
		}
 	}
}

//图片切换效果
var Extend = function(destination, source) {
	for (var property in source) {
		destination[property] = source[property];
	}
	return destination;
}

var CurrentStyle = function(element){
	return element.currentStyle || document.defaultView.getComputedStyle(element, null);
}

var Bind = function(object, fun) {
	var args = Array.prototype.slice.call(arguments).slice(2);
	return function() {
		return fun.apply(object, args.concat(Array.prototype.slice.call(arguments)));
	}
}

var Tween = {
	Quart: {
		easeOut: function(t,b,c,d){
			return -c * ((t=t/d-1)*t*t*t - 1) + b;
		}
	},
	Back: {
		easeOut: function(t,b,c,d,s){
			if (s == undefined) s = 1.70158;
			return c*((t=t/d-1)*t*((s+1)*t + s) + 1) + b;
		}
	},
	Bounce: {
		easeOut: function(t,b,c,d){
			if ((t/=d) < (1/2.75)) {
				return c*(7.5625*t*t) + b;
			} else if (t < (2/2.75)) {
				return c*(7.5625*(t-=(1.5/2.75))*t + .75) + b;
			} else if (t < (2.5/2.75)) {
				return c*(7.5625*(t-=(2.25/2.75))*t + .9375) + b;
			} else {
				return c*(7.5625*(t-=(2.625/2.75))*t + .984375) + b;
			}
		}
	}
}


//容器对象,滑动对象,切换数量
var SlideTrans = function(container, slider, count, options) {
	this._slider = $(slider);
	this._container = $(container);//容器对象
	this._timer = null;//定时器
	this._count = Math.abs(count);//切换数量
	this._target = 0;//目标值
	this._t = this._b = this._c = 0;//tween参数
	
	this.Index = 0;//当前索引
	
	this.SetOptions(options);
	
	this.Auto = !!this.options.Auto;
	this.Duration = Math.abs(this.options.Duration);
	this.Time = Math.abs(this.options.Time);
	this.Pause = Math.abs(this.options.Pause);
	this.Tween = this.options.Tween;
	this.onStart = this.options.onStart;
	this.onFinish = this.options.onFinish;
	
	var bVertical = !!this.options.Vertical;
	this._css = bVertical ? "top" : "left";//方向
	
	//样式设置
	var p = CurrentStyle(this._container).position;
	p == "relative" || p == "absolute" || (this._container.style.position = "relative");
	this._container.style.overflow = "hidden";
	this._slider.style.position = "absolute";
	
	this.Change = this.options.Change ? this.options.Change :
		this._slider[bVertical ? "offsetHeight" : "offsetWidth"] / this._count;
};
SlideTrans.prototype = {
  //设置默认属性
  SetOptions: function(options) {
	this.options = {//默认值
		Vertical:	true,//是否垂直方向（方向不能改）
		Auto:		true,//是否自动
		Change:		0,//改变量
		Duration:	50,//滑动持续时间
		Time:		10,//滑动延时
		Pause:		2000,//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
		Tween:		Tween.Quart.easeOut//tween算子
	};
	Extend(this.options, options || {});
  },
  //开始切换
  Run: function(index) {
	//修正index
	index == undefined && (index = this.Index);
	index < 0 && (index = this._count - 1) || index >= this._count && (index = 0);
	//设置参数
	this._target = -Math.abs(this.Change) * (this.Index = index);
	this._t = 0;
	this._b = parseInt(CurrentStyle(this._slider)[this.options.Vertical ? "top" : "left"]);
	this._c = this._target - this._b;
	
	this.onStart();
	this.Move();
  },
  //移动
  Move: function() {
	clearTimeout(this._timer);
	//未到达目标继续移动否则进行下一次滑动
	if (this._c && this._t < this.Duration) {
		this.MoveTo(Math.round(this.Tween(this._t++, this._b, this._c, this.Duration)));
		this._timer = setTimeout(Bind(this, this.Move), this.Time);
	}else{
		this.MoveTo(this._target);
		this.Auto && (this._timer = setTimeout(Bind(this, this.Next), this.Pause));
	}
  },
  //移动到
  MoveTo: function(i) {
	this._slider.style[this._css] = i + "px";
  },
  //下一个
  Next: function() {
	this.Run(++this.Index);
  },
  //上一个
  Previous: function() {
	this.Run(--this.Index);
  },
  //停止
  Stop: function() {
	clearTimeout(this._timer); this.MoveTo(this._target);
  }
}