//author    ：  jin
//function  ：  gapSlide-v1.0
//first time：  2009-7-26
//last time ：  2009-7-26
(function($) {
	$.fn.UE_GapSlide=function(opt){
		//init
		var d1=$(this),
			d2=d1.children(),
			d3=d1.children().children();
		//
		var d1Height=d1.outerHeight(),
			d3Height=d3.outerHeight(),
			d1Width=d1.outerWidth(),
			d3Width=d3.outerWidth(),
			d3Size=d3.size();
		var d2Height=d3Height*d3Size,
			d2Width=d3Width*d3Size;
		//封装公共数据
		var dom={
				d1:d1,
				d2:d2,
				d3:d3,
				d1Height:d1Height,
				d3Height:d3Height,
				d1Width:d1Width,
				d3Width:d3Width,
				d3Size:d3Size,
				d2Height:d2Height,
				d2Width:d2Width
			};
		//setting
		var settings=$.extend(
			{
				speed:"normal",
				timer:3000,
				gapmultiple:1,//间隔高度几倍d3Height，此处为单倍。
				orientation:"down"/*,
				btnupid:"demoup",
				btndownid:"demodown",
				btnleftid:"demoleft",
				btndownid:"demoright"
				*/
			},
			$.fn.UE_GapSlide.defaults,
			opt
		);
		var gapmultiple=settings.gapmultiple,
			orientation=settings.orientation;
		//填充数据clone
		for(var i=0;i<d3Size;i++){
			d3.eq(i).clone().appendTo(d2);
			d3.eq(d3Size-1-i).clone().prependTo(d2);
		}
		//溢出判断
		switch(orientation)
		{
			case "up":
			case "down":
				//数据项不足
				if(d3Size*d3Height<d1Height)return;
				if(gapmultiple*d3Height>d1Height){
					gapmultiple=d1Height/d3Height;
				}
				//position reset
				d2.height(d2Height*3);
				d1.scrollTop(d2Height);
				break;
			case "left":
			case "right":
				//数据项不足
				if(d3Size*d3Width<d1Width)return;
				if(gapmultiple*d3Width>d1Width){
					gapmultiple=d1Width/d3Width;
				}
				//position reset
				//{
					//填充数据后，如果遇到浮动，克隆数据将被挤到第二行去，横向滑行将会边滑动边从地下跳上来
					//该宽度赋值请必须写在scrollleft之前，否则scrollleft由于无滚动出现赋值将会失败
					d2.width(d2Width*3);
				//}
				d1.scrollLeft(d2Width);
				break;
		}
		//each play
		return $(this).each(function(){
			main($(this),settings,dom);
		});
    };
    //autoplay
	var main=function($this,settings,dom){
		//init
		var d1=dom.d1,
			d2=dom.d2,
			d3=dom.d3;
		//
		var d1Height=dom.d1Height,
			d3Height=dom.d3Height,
			d1Width=dom.d1Width,
			d3Width=dom.d3Width,
			d3Size=dom.d3Size;
		var d2Height=dom.d2Height,
			d2Width=dom.d2Width;
		//
		var speed=settings.speed,
			timer=settings.timer,
			gapmultiple=settings.gapmultiple,
			orientation=settings.orientation,
			btnupid=$("#"+settings.btnupid),
			btndownid=$("#"+settings.btndownid),
			btnleftid=$("#"+settings.btnleftid),
			btnrightid=$("#"+settings.btnrightid);
		//up
		var up=function(){
			btnupid.unbind("click");
			d1.animate({scrollTop:d2Height+(gapmultiple*d3Height)},speed,function(){
				for(i=1;i<=gapmultiple;i++){
					d2.children().eq(0).appendTo(d2);
				}
				d1.scrollTop(d2Height);
				btnupid.bind("click",up);
			});
			return false;
		};
		//down
		var down=function(){
			btndownid.unbind("click");
			d1.animate({scrollTop:d2Height-(gapmultiple*d3Height)},speed,function(){
				for(i=1;i<=gapmultiple;i++){
					d2.children().eq(d2.children().size()-1).prependTo(d2);
				}
				d1.scrollTop(d2Height);
				btndownid.bind("click",down);
			});
			return false;
		};
		//left
		var left=function(){
			btnleftid.unbind("click");
			d1.animate({scrollLeft:d2Width+(gapmultiple*d3Width)},speed,function(){
				for(i=1;i<=gapmultiple;i++){
					d2.children().eq(0).appendTo(d2);
				}
				d1.scrollLeft(d2Width);
				btnleftid.bind("click",left);
			});
			return false;
		};
		//right
		var right=function(){
			btnrightid.unbind("click");
			d1.animate({scrollLeft:d2Width-(gapmultiple*d3Width)},speed,function(){
				for(i=1;i<=gapmultiple;i++){
					d2.children().eq(d2.children().size()-1).prependTo(d2);
				}
				d1.scrollLeft(d2Width);
				btnrightid.bind("click",right);
			});
			return false;
		};
		//timer
		var timerID;
		var autoPlay=function(){
			switch(orientation)
			{
				case "up": timerID = window.setInterval(up,timer);break;
				case "down": timerID = window.setInterval(down,timer);break;
				case "left": timerID = window.setInterval(left,timer);break;
				case "right": timerID = window.setInterval(right,timer);break;
			}
			return false;
		};
		var autoStop = function(){
			window.clearInterval(timerID);
			return false;
		};
		//autoplay
		$(document).ready(autoPlay);
		//hover
		$this.hover(autoStop,autoPlay);
		//btn
		if(btnupid){
			btnupid.click(up);
			btnupid.hover(autoStop,autoPlay);
		}
		if(btndownid){
			btndownid.click(down);
			btndownid.hover(autoStop,autoPlay);
		}
		if(btnleftid){
			btnleftid.click(left);
			btnleftid.hover(autoStop,autoPlay);
		}
		if(btnrightid){
			btnrightid.click(right);
			btnrightid.hover(autoStop,autoPlay);
		}
		return false;
	};
})(jQuery);

/***********************************/
//导航下拉菜单开始
/**********************************/
mySlideOutMenu.Registry = []
mySlideOutMenu.aniLen = 250
mySlideOutMenu.hideDelay = 500
mySlideOutMenu.minCPUResolution = 10

// constructor
function mySlideOutMenu(id, dir, left, top, width, height)
{
	this.ie  = document.all ? 1 : 0
	this.ns4 = document.layers ? 1 : 0
	this.dom = document.getElementById ? 1 : 0
	this.css = "";

	if (this.ie || this.ns4 || this.dom) {
		this.id			 = id
		this.dir		 = dir
		this.orientation = dir == "left" || dir == "right" ? "h" : "v"
		this.dirType	 = dir == "right" || dir == "down" ? "-" : "+"
		this.dim		 = this.orientation == "h" ? width : height
		this.hideTimer	 = false
		this.aniTimer	 = false
		this.open		 = false
		this.over		 = false
		this.startTime	 = 0

		// global reference to this object
		this.gRef = "mySlideOutMenu_"+id
		eval(this.gRef+"=this")

		// add this menu object to an internal list of all menus
		mySlideOutMenu.Registry[id] = this

		var d = document

		var strCSS = "";
		strCSS += '#' + this.id + 'Container { visibility:hidden; '
		strCSS += 'left:' + left + 'px; '
		strCSS += 'top:' + top + 'px; '
		strCSS += 'width:' + width + 'px; '
		strCSS += 'height:' + height + 'px; '		
		strCSS += 'overflow:hidden; z-index:10000; }'
		strCSS += '#' + this.id + 'Container, #' + this.id + 'Content { position:absolute; '
		strCSS += '}'

		this.css = strCSS;

		this.load()
	}
}

mySlideOutMenu.writeCSS = function() {
	document.writeln('<style type="text/css">');

	for (var id in mySlideOutMenu.Registry) {
		document.writeln(mySlideOutMenu.Registry[id].css);
	}

	document.writeln('</style>');
}

mySlideOutMenu.prototype.load = function() {
	var d = document
	var lyrId1 = this.id + "Container"
	var lyrId2 = this.id + "Content"
	var obj1 = this.dom ? d.getElementById(lyrId1) : this.ie ? d.all[lyrId1] : d.layers[lyrId1]
	if (obj1) var obj2 = this.ns4 ? obj1.layers[lyrId2] : this.ie ? d.all[lyrId2] : d.getElementById(lyrId2)
	var temp

	if (!obj1 || !obj2) window.setTimeout(this.gRef + ".load()", 100)
	else {
		this.container	= obj1
		this.menu		= obj2
		this.style		= this.ns4 ? this.menu : this.menu.style
		this.homePos	= eval("0" + this.dirType + this.dim)
		this.outPos		= 0
		this.accelConst	= (this.outPos - this.homePos) / mySlideOutMenu.aniLen / mySlideOutMenu.aniLen 

		// set event handlers.
		if (this.ns4) this.menu.captureEvents(Event.MOUSEOVER | Event.MOUSEOUT);
		this.menu.onmouseover = new Function("mySlideOutMenu.showMenu('" + this.id + "')")
		this.menu.onmouseout = new Function("mySlideOutMenu.hideMenu('" + this.id + "')")

		//set initial state
		this.endSlide()
	}
}
	
mySlideOutMenu.showMenu = function(id)
{
	var reg = mySlideOutMenu.Registry
	var obj = mySlideOutMenu.Registry[id]
	
	if (obj.container) {
		obj.over = true

		// close other menus.
		for (menu in reg) if (id != menu) mySlideOutMenu.hide(menu)

		// if this menu is scheduled to close, cancel it.
		if (obj.hideTimer) { reg[id].hideTimer = window.clearTimeout(reg[id].hideTimer) }

		// if this menu is closed, open it.
		if (!obj.open && !obj.aniTimer) reg[id].startSlide(true)
	}
}

mySlideOutMenu.hideMenu = function(id)
{
	// schedules the menu to close after <hideDelay> ms, which
	// gives the user time to cancel the action if they accidentally moused out
	var obj = mySlideOutMenu.Registry[id]
	if (obj.container) {
		if (obj.hideTimer) window.clearTimeout(obj.hideTimer)
		obj.hideTimer = window.setTimeout("mySlideOutMenu.hide('" + id + "')", mySlideOutMenu.hideDelay);
	}
}

mySlideOutMenu.hideAll = function()
{
	var reg = mySlideOutMenu.Registry
	for (menu in reg) {
		mySlideOutMenu.hide(menu);
		if (menu.hideTimer) window.clearTimeout(menu.hideTimer);
	}
}

mySlideOutMenu.hide = function(id)
{
	var obj = mySlideOutMenu.Registry[id]
	obj.over = false

	if (obj.hideTimer) window.clearTimeout(obj.hideTimer)
	
	// flag that this scheduled event has occured.
	obj.hideTimer = 0

	// if this menu is open, close it.
	if (obj.open && !obj.aniTimer) obj.startSlide(false)
}

mySlideOutMenu.prototype.startSlide = function(open) {
	this[open ? "onactivate" : "ondeactivate"]()
	this.open = open
	if (open) this.setVisibility(true)
	this.startTime = (new Date()).getTime()	
	this.aniTimer = window.setInterval(this.gRef + ".slide()", mySlideOutMenu.minCPUResolution)
}

mySlideOutMenu.prototype.slide = function() {
	var elapsed = (new Date()).getTime() - this.startTime
	if (elapsed > mySlideOutMenu.aniLen) this.endSlide()
	else {
		var d = Math.round(Math.pow(mySlideOutMenu.aniLen-elapsed, 2) * this.accelConst)
		if (this.open && this.dirType == "-")		d = -d
		else if (this.open && this.dirType == "+")	d = -d
		else if (!this.open && this.dirType == "-")	d = -this.dim + d
		else										d = this.dim + d

		this.moveTo(d)
	}
}

mySlideOutMenu.prototype.endSlide = function() {
	this.aniTimer = window.clearTimeout(this.aniTimer)
	this.moveTo(this.open ? this.outPos : this.homePos)
	if (!this.open) this.setVisibility(false)
	if ((this.open && !this.over) || (!this.open && this.over)) {
		this.startSlide(this.over)
	}
}

mySlideOutMenu.prototype.setVisibility = function(bShow) { 
	var s = this.ns4 ? this.container : this.container.style
	s.visibility = bShow ? "visible" : "hidden"
}
mySlideOutMenu.prototype.moveTo = function(p) { 
	this.style[this.orientation == "h" ? "left" : "top"] = this.ns4 ? p : p + "px"
}
mySlideOutMenu.prototype.getPos = function(c) {
	return parseInt(this.style[c])
}

// events
mySlideOutMenu.prototype.onactivate		= function() { }
mySlideOutMenu.prototype.ondeactivate	= function() { }

/*trans*/
function picon(id){
var ie=document.all?true:false;
if(ie){
id.filters.alpha.opacity=0
}else{
id.style.MozOpacity=0
}
}
function picoff(id){
var ie=document.all?true:false;
if(ie){
id.filters.alpha.opacity=100
}else{
id.style.MozOpacity=1
}
}