function remove(tid) {
	id = document.getElementById(tid);
	if (id.value == '请输入关键字') {
		id.value = '';
	}
	else if (id.value == '') {
		id.value = '请输入关键字';
	}
}
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");

	var tv = new TransformView("idTransformView", "idSlider", 222, 4, {
		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();
		}
	})
}

function MM_showHideLayers() { //v9.0
	var i, p, v, obj, args = MM_showHideLayers.arguments;
	for (i = 0; i < (args.length - 2); i += 3)
		with (document) if (getElementById && ((obj = getElementById(args[i])) != null)) {
			v = args[i + 2];
			if (obj.style) { obj = obj.style; v = (v == 'show') ? 'visible' : (v == 'hide') ? 'hidden' : v; }
			obj.visibility = v;
		}
}