<!--//
mtDropDown.spacerGif = "http://www.pzhsta.gov.cn/images/none.gif";
mtDropDown.dingbatOn = "images/expand.gif";
mtDropDown.dingbatOff = "images/close.gif";
mtDropDown.dingbatSize = 14;
mtDropDown.menuPadding = 0;     //�˵�ͼ�����ұ߾���
mtDropDown.itemPadding = 3;     //�˵����
mtDropDown.shadowSize = 1;      //�˵��ұ���Ӱ����
mtDropDown.shadowOffset = 0;
mtDropDown.shadowColor = "#ccc";   //�˵���Ӱ��ɫ
mtDropDown.shadowPng = "��Ԫ������Ϣ�� - Flash Player Installation_files/grey-40.png";
mtDropDown.backgroundColor = "#F5F5F5";
mtDropDown.backgroundPng = "��Ԫ������Ϣ�� - Flash Player Installation_files/white-90.png";
mtDropDown.hideDelay = 100;     //�˵�ͣ��ʱ��
mtDropDown.slideTime = 200;      //�˵������ٶ�

mtDropDown.reference = {topLeft:1,topRight:2,bottomLeft:3,bottomRight:4};
mtDropDown.direction = {down:1,right:2};
mtDropDown.registry = [];
mtDropDown._maxZ = 100;


mtDropDown.isSupported = function()
{
	if (typeof mtDropDown.isSupported.r == "boolean")
		return mtDropDown.isSupported.r;
	var ua = navigator.userAgent.toLowerCase();
	var an = navigator.appName;
	var r = false;
	if (ua.indexOf("gecko") > -1)
		r = true;
	else if (an == "Microsoft Internet Explorer")
	{
		if (document.getElementById)
			r = true;
	}
	mtDropDown.isSupported.r = r;
	return r;
}

mtDropDown.initialize = function()
{
	for (var i = 0, menu = null; menu = this.registry[i]; i++)
	{
		menu.initialize();
	}
}

mtDropDown.renderAll = function()
{
	var aMenuHtml = [];
	for (var i = 0, menu = null; menu = this.registry[i]; i++)
	{
		aMenuHtml[i] = menu.toString();
		//alert(aMenuHtml[i])
	}
	document.write(aMenuHtml.join(""));
}

function mtDropDown(oActuator, iDirection, iLeft, iTop, iReferencePoint, parentMenuSet)
{
	this.addItem = addItem;
	this.addMenu = addMenu;
	this.toString = toString;
	this.initialize = initialize;
	this.isOpen = false;
	this.show = show;
	this.hide = hide;
	this.items = [];

	this.onactivate = new Function();
	this.ondeactivate = new Function();
	this.onmouseover = new Function();
	this.onqueue = new Function();

	this.index = mtDropDown.registry.length;
	mtDropDown.registry[this.index] = this;
	var id = "mtDropDown" + this.index;
	var contentHeight = null;
	var contentWidth = null;
	var childMenuSet = null;
	var animating = false;
	var childMenus = [];
	var slideAccel = -1;
	var elmCache = null;
	var ready = false;
	var _this = this;
	var a = null;
	var pos = iDirection == mtDropDown.direction.down ? "top" : "left";
	var dim = null;

	function addItem(sText, sUrl, iTarget)
	{
		//alert(sUrl)
		var item = new mtDropDownItem(sText, sUrl, iTarget, this);
		item._index = this.items.length;
		this.items[item._index] = item;
	}

	function addMenu(oMenuItem)
	{
		if (!oMenuItem.parentMenu == this) throw new Error("Cannot add a menu here");
		if (childMenuSet == null)
			childMenuSet = new mtDropDownSet(mtDropDown.direction.right, -5, 2, mtDropDown.reference.topRight);
		var m = childMenuSet.addMenu(oMenuItem);
		childMenus[oMenuItem._index] = m;
		m.onmouseover = child_mouseover;
		m.ondeactivate = child_deactivate;
		m.onqueue = child_queue;
		return m;
	}

	function initialize()
	{
		initCache();
		initEvents();
		initSize();
		ready = true;
	}

	function show()
	{
		if (ready)
		{
			_this.isOpen = true;
			animating = true;
			setContainerPos();
			elmCache["clip"].style.visibility = "visible";
			elmCache["clip"].style.zIndex = mtDropDown._maxZ++;

			slideStart();
			_this.onactivate();
		}
	}

	function hide()
	{
		if (ready)
		{
			_this.isOpen = false;
			animating = true;
			for (var i = 0, item = null; item = elmCache.item[i]; i++)
				dehighlight(item);
			if (childMenuSet)
				childMenuSet.hide();
			slideStart();
			_this.ondeactivate();
		}
	}

	function setContainerPos()
	{
		var sub = oActuator.constructor == mtDropDownItem;
		var act = sub ? oActuator.parentMenu.elmCache["item"][oActuator._index] : oActuator;
		var el = act;
		var x = -2;
		var y = 0;
		var minX = 0;
		var maxX = (window.innerWidth ? window.innerWidth : document.body.clientWidth) - parseInt(elmCache["clip"].style.width);
		var minY = 0;
		var maxY = (window.innerHeight ? window.innerHeight : document.body.clientHeight) - parseInt(elmCache["clip"].style.height);

		while (sub ? el.parentNode.className.indexOf("mtDropdownMenu") == -1 : el.offsetParent)
		{
			x += el.offsetLeft;
			y += el.offsetTop;
			if (el.scrollLeft)
				x -= el.scrollLeft;
			if (el.scrollTop)
				y -= el.scrollTop;
			el = el.offsetParent;
		}
		if (oActuator.constructor == mtDropDownItem)
		{
			x += parseInt(el.parentNode.style.left);
			y += parseInt(el.parentNode.style.top);
		}
		switch (iReferencePoint)
		{
			case mtDropDown.reference.topLeft:
				break;
			case mtDropDown.reference.topRight:
				x += act.offsetWidth;
				break;
			case mtDropDown.reference.bottomLeft:
				y += act.offsetHeight;
				break;
			case mtDropDown.reference.bottomRight:
				x += act.offsetWidth;
				y += act.offsetHeight;
				break;
		}
		x += iLeft;
		y += iTop;
		x = Math.max(Math.min(x, maxX), minX);
		y = Math.max(Math.min(y, maxY), minY);
		elmCache["clip"].style.left = x + "px";
		elmCache["clip"].style.top = y + "px";
	}

	function slideStart()
	{
		var x0 = parseInt(elmCache["content"].style[pos]);
		var x1 = _this.isOpen ? 0 : -dim;
		if (a != null)
			a.stop();
		a = new Accelimation(x0, x1, mtDropDown.slideTime, slideAccel);
		a.onframe = slideFrame;
		a.onend = slideEnd;
		a.start();
	}

	function slideFrame(x)
	{
		elmCache["content"].style[pos] = x + "px";
	}

	function slideEnd()
	{
		if (!_this.isOpen)
			elmCache["clip"].style.visibility = "hidden";
		animating = false;
	}

	function initSize()
	{
		var ow = elmCache["items"].offsetWidth;
		var oh = elmCache["items"].offsetHeight;
		var ua = navigator.userAgent.toLowerCase();

		elmCache["clip"].style.width = ow + mtDropDown.shadowSize + 2 + "px";
		elmCache["clip"].style.height = oh + mtDropDown.shadowSize + 2 + "px";

		elmCache["content"].style.width = ow + mtDropDown.shadowSize + "px";
		elmCache["content"].style.height = oh + mtDropDown.shadowSize + "px";
		contentHeight = oh + mtDropDown.shadowSize;
		contentWidth = ow + mtDropDown.shadowSize;
		dim = iDirection == mtDropDown.direction.down ? contentHeight : contentWidth;

		elmCache["content"].style[pos] = -dim - mtDropDown.shadowSize + "px";
		elmCache["clip"].style.visibility = "hidden";

		if (ua.indexOf("mac") == -1 || ua.indexOf("gecko") > -1)
		{
			elmCache["background"].style.width = ow + "px";
			elmCache["background"].style.height = oh + "px";
			elmCache["background"].style.backgroundColor = mtDropDown.backgroundColor;

			elmCache["shadowRight"].style.left = ow + "px";
			elmCache["shadowRight"].style.height = oh - (mtDropDown.shadowOffset - mtDropDown.shadowSize) + "px";
			elmCache["shadowRight"].style.backgroundColor = mtDropDown.shadowColor;

			elmCache["shadowBottom"].style.top = oh + "px";
			elmCache["shadowBottom"].style.width = ow - mtDropDown.shadowOffset + "px";
			elmCache["shadowBottom"].style.backgroundColor = mtDropDown.shadowColor;
		}
		else
		{
			elmCache["background"].firstChild.src = mtDropDown.backgroundPng;
			elmCache["background"].firstChild.width = ow;
			elmCache["background"].firstChild.height = oh;

			elmCache["shadowRight"].firstChild.src = mtDropDown.shadowPng;
			elmCache["shadowRight"].style.left = ow + "px";
			elmCache["shadowRight"].firstChild.width = mtDropDown.shadowSize;
			elmCache["shadowRight"].firstChild.height = oh - (mtDropDown.shadowOffset - mtDropDown.shadowSize);

			elmCache["shadowBottom"].firstChild.src = mtDropDown.shadowPng;
			elmCache["shadowBottom"].style.top = oh + "px";
			elmCache["shadowBottom"].firstChild.height = mtDropDown.shadowSize;
			elmCache["shadowBottom"].firstChild.width = ow - mtDropDown.shadowOffset;
		}
	}

	function initCache()
	{
		var menu = document.getElementById(id);
		var all = menu.all ? menu.all : menu.getElementsByTagName("*");
		elmCache = {};
		elmCache["clip"] = menu;
		elmCache["item"] = [];
		for (var i = 0, elm = null; elm = all[i]; i++)
		{
			switch (elm.className)
			{
				case "items":
				case "content":
				case "background":
				case "shadowRight":
				case "shadowBottom":
					elmCache[elm.className] = elm;
					break;
				case "item":
					elm._index = elmCache["item"].length;
					elmCache["item"][elm._index] = elm;
					break;
			}
		}

		_this.elmCache = elmCache;
	}

	function initEvents()
	{
		for (var i = 0, item = null; item = elmCache.item[i]; i++)
		{
			item.onmouseover = item_mouseover;
			item.onmouseout = item_mouseout;
			item.onclick = item_click;
		}

		if (typeof oActuator.tagName != "undefined")
		{
			oActuator.onmouseover = actuator_mouseover;
			oActuator.onmouseout = actuator_mouseout;
		}

		elmCache["content"].onmouseover = content_mouseover;
		elmCache["content"].onmouseout = content_mouseout;
	}

	function highlight(oRow)
	{
		oRow.className = "item hover";
		if (childMenus[oRow._index])
			oRow.lastChild.firstChild.src = mtDropDown.dingbatOn;
	}

	function dehighlight(oRow)
	{
		oRow.className = "item";
		if (childMenus[oRow._index])
			oRow.lastChild.firstChild.src = mtDropDown.dingbatOff;
	}

	function item_mouseover()
	{
		if (!animating)
		{
			highlight(this);
			if (childMenus[this._index])
				childMenuSet.showMenu(childMenus[this._index]);
			else if (childMenuSet)
				childMenuSet.hide();
		}
	}

	function item_mouseout()
	{
		if (!animating)
		{
			if (childMenus[this._index])
				childMenuSet.hideMenu(childMenus[this._index]);
			else
				dehighlight(this);
		}
	}

	function item_click() //���ӿ���
	{
		if (!animating)
		{
			if (_this.items[this._index].url)
                        {
                        	if (_this.items[this._index].target == 1)
                                {
								  window.open(_this.items[this._index].url,"","");
                                }
                                else
                                {
                                	//window.open(_this.items[this._index].url,"","");
									//document.frames["su"].location.href = _this.items[this._index].url;
									document.location.href = _this.items[this._index].url;
                                }
                        }
		}
	}
	function actuator_mouseover()
	{
		parentMenuSet.showMenu(_this);
	}

	function actuator_mouseout()
	{
		parentMenuSet.hideMenu(_this);
	}

	function content_mouseover()
	{
		if (!animating)
		{
			parentMenuSet.showMenu(_this);
			_this.onmouseover();
		}
	}

	function content_mouseout()
	{
		if (!animating)
		{
			parentMenuSet.hideMenu(_this);
		}
	}

	function child_mouseover()
	{
		if (!animating)
		{
			parentMenuSet.showMenu(_this);
		}
	}

	function child_deactivate()
	{
		for (var i = 0; i < childMenus.length; i++)
		{
			if (childMenus[i] == this)
			{
				dehighlight(elmCache["item"][i]);
				break;
			}
		}
	}

	function child_queue()
	{
		parentMenuSet.hideMenu(_this);
	}

	function toString()
	{
		var aHtml = [];
		var sClassName = "mtDropdownMenu" + (oActuator.constructor != mtDropDownItem ? " top" : "");
		for (var i = 0, item = null; item = this.items[i]; i++)
		{
			aHtml[i] = item.toString(childMenus[i]);
		}
		return '<div id="' + id + '" class="' + sClassName + '" style="margin-top:4px;FILTER:progid:DXImageTransform.Microsoft.Gradient(gradientType=0,startColorStr=#ffffff,endColorStr=#ffffff);">' + '<div class="content"><table class="items" cellpadding="0" cellspacing="0" border="0">' + '<tr><td colspan="2"><img src="' + mtDropDown.spacerGif + '" width="1" height="' + mtDropDown.menuPadding + '"></td></tr>' + aHtml.join('') + '<tr><td colspan="2"><img src="' + mtDropDown.spacerGif + '" width="1" height="' + mtDropDown.menuPadding + '"></td></tr></table>' + '<div class="shadowBottom"><img src="' + mtDropDown.spacerGif + '" width="1" height="1"></div>' + '<div class="shadowRight"><img src="' + mtDropDown.spacerGif + '" width="1" height="1"></div>' + '<div class="background"><img src="' + mtDropDown.spacerGif + '" width="1" height="1"></div>' + '</div></div>';
		}
	}

	mtDropDownSet.registry = [];
	function mtDropDownSet(iDirection, iLeft, iTop,iReferencePoint)
	{
		this.addMenu = addMenu;
		this.showMenu = showMenu;
		this.hideMenu = hideMenu;
		this.hide = hide;

		var menus = [];
		var _this = this;
		var current = null;
		this.index = mtDropDownSet.registry.length;
		mtDropDownSet.registry[this.index] = this;

		function addMenu(oActuator)
		{
			var m = new mtDropDown(oActuator, iDirection, iLeft, iTop, iReferencePoint, this);
			menus[menus.length] = m;
			return m;
		}

		function showMenu(oMenu)
		{
			if (oMenu != current)
			{
				if (current != null)
					hide(current);
				current = oMenu;
				oMenu.show();
			}
			else
			{
				cancelHide(oMenu);
			}
		}

		function hideMenu(oMenu)
		{
			if (current == oMenu && oMenu.isOpen)
			{
				if (!oMenu.hideTimer)
					scheduleHide(oMenu);
			}
		}

		function scheduleHide(oMenu)
		{
			oMenu.onqueue();
			oMenu.hideTimer = window.setTimeout("mtDropDownSet.registry[" + _this.index + "].hide(mtDropDown.registry[" + oMenu.index + "])", mtDropDown.hideDelay);
		}

		function cancelHide(oMenu)
		{
			if (oMenu.hideTimer)
			{
				window.clearTimeout(oMenu.hideTimer);
				oMenu.hideTimer = null;
			}
		}

		function hide(oMenu)
		{
			if (!oMenu && current)
				oMenu = current;
			if (oMenu && current == oMenu && oMenu.isOpen)
			{
				cancelHide(oMenu);
				current = null;
				oMenu.hideTimer = null;
				oMenu.hide();
			}
		}
	}

	function mtDropDownItem(sText, sUrl, iTarget, oParent)
	{
		this.toString = toString;
		this.text = sText;
		this.url = sUrl;
                this.target = iTarget;
		this.parentMenu = oParent;

		function toString(bDingbat)
		{
			var sDingbat = bDingbat ? mtDropDown.dingbatOff : mtDropDown.spacerGif;
			var iEdgePadding = mtDropDown.itemPadding + mtDropDown.menuPadding;
			var sPaddingLeft = "padding:" + mtDropDown.itemPadding + "px; padding-left:" + iEdgePadding + "px;"
			var sPaddingRight = "padding:" + mtDropDown.itemPadding + "px; padding-right:" + iEdgePadding + "px;"
			return '<tr class="item"><td nowrap style="' + sPaddingLeft + '">' + sText + '</td><td width="14" style="' + sPaddingRight + '">' + '<img src="' + sDingbat + '" width="14" height="14"></td></tr>';
		}
	}

	function Accelimation(from, to, time, zip)
	{
		if (typeof zip == "undefined")
			zip = 0;
		if (typeof unit == "undefined")
			unit = "px";
		this.x0 = from;
		this.x1 = to;
		this.dt = time;
		this.zip = -zip;
		this.unit = unit;
		this.timer = null;
		this.onend = new Function();
		this.onframe = new Function();
	}

	Accelimation.prototype.start = function()
	{
		this.t0 = new Date().getTime();
		this.t1 = this.t0 + this.dt;
		var dx = this.x1 - this.x0;
		this.c1 = this.x0 + ((1 + this.zip) * dx / 3);
		this.c2 = this.x0 + ((2 + this.zip) * dx / 3);
		Accelimation._add(this);
	}

	Accelimation.prototype.stop = function()
	{
		Accelimation._remove(this);
	}

	Accelimation.prototype._paint = function(time)
	{
		if (time < this.t1)
		{
			var elapsed = time - this.t0;
			this.onframe(Accelimation._getBezier(elapsed/this.dt,this.x0,this.x1,this.c1,this.c2));
		}
		else
			this._end();
	}

	Accelimation.prototype._end = function()
	{
		Accelimation._remove(this);
		this.onframe(this.x1);
		this.onend();
	}

	Accelimation._add = function(o)
	{
		var index = this.instances.length;
		this.instances[index] = o;

		if (this.instances.length == 1)
		{
			this.timerID = window.setInterval("Accelimation._paintAll()", this.targetRes);
		}
	}

	Accelimation._remove = function(o)
	{
		for (var i = 0; i < this.instances.length; i++)
		{
		if (o == this.instances[i])
		{
			this.instances = this.instances.slice(0,i).concat( this.instances.slice(i+1) );
			break;
		}
	}

	if (this.instances.length == 0)
	{
		window.clearInterval(this.timerID);
		this.timerID = null;
	}
}

Accelimation._paintAll = function()
{
	var now = new Date().getTime();
	for (var i = 0; i < this.instances.length; i++)
	{
		this.instances[i]._paint(now);
	}
}

Accelimation._B1 = function(t)
{
	return t*t*t
}

Accelimation._B2 = function(t)
{
	return 3*t*t*(1-t)
}

Accelimation._B3 = function(t)
{
	return 3*t*(1-t)*(1-t)
}

Accelimation._B4 = function(t)
{
	return (1-t)*(1-t)*(1-t)
}

Accelimation._getBezier = function(percent,startPos,endPos,control1,control2)
{
	return endPos * this._B1(percent) + control2 * this._B2(percent) + control1 * this._B3(percent) + startPos * this._B4(percent);
}

Accelimation.instances = [];
Accelimation.targetRes = 10;
Accelimation.timerID = null;
//-->