//类:广告
advert = function(advertputid, putmode, loadmode, hidemode, displayseconds, html, minimizehtml, x, y, speed, width, height, minimizewidth, minimizeheight, href) {
	this.advertputid = advertputid; //广告投放id
	this.putmode = putmode; //投放方式,飘动|fly\0窗口左上角|windowlefttop\0窗口右上角|windowrighttop\0窗口右下角|windowrightbottom\0窗口左下角|windowleftbottom\0页面左上角|pagelefttop\0页面右上角|pagerighttop\0页面右下角|pagerightbottom\0页面左下角|pageleftbottom\0页面顶部(居中)|pagetop\0页面底部(居中)|pagebottom\0窗口中部|windowcenter\0窗口上方(左右对称)|windowtopbalance\0窗口下方(左右对称)|windowbottombalance\0页面上方(左右对称)|pagetopbalance\0页面下方(左右对称)|pagebottombalance\0绝对位置|static
	this.loadmode = loadmode; //加载方式,0/直接显示,1/从下至上移动,2/从上至下移动,3/从左至右移动,4/从右至左移动
	this.hidemode = hidemode; //隐藏方式,0/直接关闭,1/从下至上收缩,2/从上至下收缩,3/从左至右收缩,4/从右至左收缩
	this.displayseconds = displayseconds; //显示时长
	this.html = html; //html
	this.minimizehtml = minimizehtml; //最小化时html
	this.x = x; //水平边距
	this.y = y; //垂直边距
	if(speed==0) {
		speed = 1;
	}
	if(speed>=1) {
		this.amout = math.round(speed); //移动距离(像素)
		this.speed = 1; //速度(ms)
	}
	else {
		this.amout = 1; //移动距离(像素)
		this.speed = math.round(1/speed); //速度(ms)
	}
	this.width = width==number(width) ? width + "px" : width; //宽度
	this.height = height==number(height) ? height + "px" : height; //高度
	this.minimizewidth = minimizewidth==number(minimizewidth) ? minimizewidth + "px" : minimizewidth; //最小化时宽度
	this.minimizeheight = minimizeheight==number(minimizeheight) ? minimizeheight + "px" : minimizeheight; //最小化时高度
	this.href = href; //链接
	
	this.fixedpositionsupport = true; //是否支持固定位置
	this.isminimize = false; //是否最小化
	this.flying = "fly"==this.putmode; //是否在漂移,漂移模式时有效
};

advert.prototype.create = function(hostelement) { //显示广告,hostelement:宿主对象,固定位置广告时有效
	var advert = this;
	this.advertbody = document.createelement("div");
	this.advertbody.id = 'advert_' + this.advertputid;
	this.advertbody.style.zindex = 10000;
	this.advertbody.style.overflow = "hidden";
	this.advertbody.style.fontsize = "0px";
	this.advertbody.style.textalign = "center";
	this.advertbody.style.width = "0px";
	this.advertbody.style.height = "0px";
	this.advertbody.style.borderstyle = "none";
	this.advertbody.style.visibility = 'hidden';
	this.advertbody.style.backgroundcolor = "transparent";
	if("pagetop"==this.putmode) {
		this.advertbody.style.zindex = -1;
	}
	if(hostelement) {
		this.advertbody.style.position = 'static';
		hostelement.parentnode.replacechild(this.advertbody, hostelement);
	}
	else {
		this.advertbody.style.position = 'fixed';
		this.advertbody.style.left = "100px";
		if(document.body.childnodes.length==0 || "pagebottom"==this.putmode) {
			document.body.appendchild(this.advertbody);
		}
		else {
			document.body.insertbefore(this.advertbody, document.body.childnodes[0]);
		}
	}
	//创建div用来显示广告
	var divcontent = document.createelement("div");
	divcontent.style.width = (",pagetop,pagebottom,".indexof("," + this.putmode + ",")!=-1 ? this.width : "100%");
	divcontent.style.height = "100%";
	divcontent.style.backgroundcolor = "transparent";
	divcontent.style.overflow = "hidden";
	divcontent.style.margin = "auto";
	this.advertbody.appendchild(divcontent);
	
	//pagetop模式时,创建div,高度y
	if("pagetop"==this.putmode) {
		this.divpadding = document.createelement("div");
		this.divpadding.id = 'advert_' + this.advertputid;
		this.divpadding.style.position = 'static';
		this.divpadding.backgroundcolor = "transparent";
		this.divpadding.style.height = this.y==0 ? this.height : this.y + "px";
		this.divpadding.style.overflow = "hidden";
		document.body.appendchild(this.divpadding);
	}
	
	//判断是否支持fixed样式
	this.fixedpositionsupport = this.advertbody.offsetleft==100;
	if(!hostelement && (!this.fixedpositionsupport || this.putmode.indexof("page")==0)) {
		this.advertbody.style.position = "absolute";
	}
	this.advertbody.style.fontsize = "12px";
	this.advertbody.style.left = "0px";
	this.restore(); //输出广告
	
	//有设置显示时间,定时关闭广告
	if(this.displayseconds>0) {
		var advert = this;
		window.settimeout(function() {
			advert.display(true); //关闭
		}, this.displayseconds * 1000);
	};
	
	if("fly"==this.putmode) { //漂移
		this.fly();
	}
	
	//绑定事件
	var adjustposition = function() {
		if(!advert.flying) {
			advert.adjustposition();
		}
	};
	if(document.all) {
		window.attachevent('onload', adjustposition);
		window.attachevent('onresize', adjustposition);
		if(this.putmode.indexof("page")!=0) {
			window.attachevent('onscroll', adjustposition);
		}
	}
	else {
		window.addeventlistener("load", adjustposition, false);
		window.addeventlistener("resize", adjustposition, false);
		if(this.putmode.indexof("page")!=0) {
			window.addeventlistener("scroll", adjustposition, false);
		}
	}
};

advert.prototype.destory = function() { //销毁广告
	for(var element = document.getelementbyid('advert_' + this.advertputid); element; element = document.getelementbyid('advert_' + this.advertputid)) {
		element.parentnode.removechild(element);
	}
};

advert.prototype.display = function(hide) { //显示或关闭广告
	var displaymode = hide ? this.hidemode : this.loadmode;
	if(displaymode==0 || this.isminimize) {
		this.advertbody.style.visibility = 'visible';
		if(hide) {
			this.destory();
		}
		return;
	}
	var advert = this;
	var size = (displaymode<3 ? ("pagetop"==this.putmode ? this.y : this.advertbody.offsetheight) : this.advertbody.offsetwidth);
	var padding = hide ? 0 : size;
	var amout = this.amout;
	var timer = window.setinterval(function() {
		if(displaymode>2) { //从左至右移动,从右至左移动
			advert.advertbody.childnodes[0].style.marginleft = (displaymode==3 ? "-" : "") + padding + "px";
		}
		else if(hide && "pagetop"==advert.putmode) {
			advert.divpadding.style.height = (size - padding) + "px";
		}
		else if(hide && "static"==advert.putmode) {
			advert.advertbody.style.height = (size - padding) + "px";
		}
		else {
			advert.advertbody.childnodes[0].style.margintop = (displaymode==2 ? "-" : "") + padding + "px";
		}
		advert.advertbody.style.visibility = 'visible';
		var stop = (hide && padding>=size) || (!hide && padding==0);
		if(!hide) {
			padding = math.max(0, padding - amout);
		}
		else {
			padding = math.min(size, padding + amout);
		}
		if(stop) {
			window.clearinterval(timer);
			if(hide) {
				advert.destory(); //销毁广告
			}
		}
	}, this.speed);
};

advert.prototype.fly = function() { //漂移
	var advert = this;
	if(this.speed==1) {
		this.speed *= 2;
		this.amout *= 2;
	}
	this.advertbody.onmouseover = function() {
		advert.flying = false;
	};
	this.advertbody.onmouseout = function() {
		advert.flying = true;
	};
	var direction = "right_bottom"; //方向
	window.setinterval(function() {
		if(!advert.flying) {
			return;
		}
		if(direction.indexof("right")!=-1) { //右移
			var width = advert.advertbody.offsetwidth;
			var clientwidth = domutils.getclientwidth(document);
			advert.x = math.min(advert.x + advert.amout, clientwidth - width);
			if(advert.x + width >= clientwidth) {
				direction = direction.replace("right", "left");	
			}
		}
		if(direction.indexof("left")!=-1) { //左移
			advert.x = math.max(advert.x - advert.amout, 0);
			if(advert.x==0) {
				direction = direction.replace("left", "right");	
			}
		}
		if(direction.indexof("bottom")!=-1) { //下移
			var height = advert.advertbody.offsetheight;
			var clientheight = domutils.getclientheight(document);
			advert.y = math.min(advert.y + advert.amout, clientheight - height);
			if(advert.y + height >= clientheight) {
				direction = direction.replace("bottom", "top");	
			}
		}
		if(direction.indexof("top")!=-1) { //上移
			advert.y = math.max(advert.y - advert.amout, 0);
			if(advert.y==0) {
				direction = direction.replace("top", "bottom");	
			}
		}
		advert.adjustposition();
	}, this.speed);
};

advert.prototype.adjustposition = function() { //调整坐标
	if(this.advertbody.style.position=="static") {
		return;
	}
	if(",pagetop,pagebottom,".indexof("," + this.putmode + ",")!=-1) { //页面顶部或者底部
		var advert = this;
		advert.advertbody.style.left = "0px";
		advert.advertbody.style.width = "100%";
		window.settimeout(function() {
			advert.advertbody.style.width = document.body.scrollwidth + "px";
		}, 1);
		return;
	}
	var absolute = this.putmode.indexof("page")==0;
	var left = (this.fixedpositionsupport || absolute  ? 0 : domutils.getscrollleft(document));
	var top = (this.fixedpositionsupport || absolute ? 0 : domutils.getscrolltop(document));
	var clientwidth = absolute ? document.body.scrollwidth : domutils.getclientwidth(document);
	var clientheight = absolute ? document.body.scrollheight : domutils.getclientheight(document);
	//设置左边距
	if(",fly,windowlefttop,windowleftbottom,pagelefttop,pageleftbottom,".indexof("," + this.putmode + ",")!=-1) {
		left += this.x;
	}
	else if(",windowrighttop,windowrightbottom,pagerighttop,pagerightbottom,".indexof("," + this.putmode + ",")!=-1) {
		left = left + clientwidth - this.advertbody.offsetwidth - this.x;
	}
	else if(",windowcenter,".indexof("," + this.putmode + ",")!=-1) {
		left += (clientwidth - this.advertbody.offsetwidth) / 2;
	}
	//设置上边距
	if(",fly,windowlefttop,windowrighttop,pagelefttop,pagerighttop,".indexof("," + this.putmode + ",")!=-1) {
		top += this.y;
	}
	else if(",windowleftbottom,windowrightbottom,pageleftbottom,pagerightbottom,".indexof("," + this.putmode + ",")!=-1) {
		top += clientheight - this.advertbody.offsetheight - this.y;
	}
	else if(",windowcenter,".indexof("," + this.putmode + ",")!=-1) {
		top += (clientheight - this.advertbody.offsetheight) / 2;
	}
	this.advertbody.style.left = left + "px";
	this.advertbody.style.top = top + "px";
};

advert.prototype.minimize = function() { //最小化广告
	this.isminimize = true;
	this.advertbody.style.visibility = 'hidden';
	var advert = this;
	window.settimeout(function() {
		advert.advertbody.onclick = function() {
			var list = advert.getadverts(advert.advertputid);
			for(var i=0; i<list.length; i++) {
				list[i].restore();
			}
		}
	}, 10);
	this.advertbody.childnodes[0].innerhtml = this.minimizehtml;
	this.advertbody.style.width = this.minimizewidth;
	this.advertbody.style.height = this.minimizeheight;
	this.resetactions(); //设置关闭、还原操作
	this.adjustposition(); //设置广告坐标
	this.display(false); //加载广告
};

advert.prototype.restore = function() { //还原广告
	this.isminimize = false;
	this.advertbody.style.visibility = 'hidden';
	this.advertbody.childnodes[0].innerhtml = this.html;
	this.advertbody.style.width = this.width;
	this.advertbody.style.height = this.height;
	this.resetactions(); //设置关闭、还原操作
	this.adjustposition(); //设置广告坐标
	this.display(false); //加载广告
	var advert = this;
	advert.advertbody.onclick = function() {
		if(advert.href && advert.href!="") {
			window.open(advert.href); //打开链接
		}
	};
};

advert.prototype.resetactions = function() { //设置关闭、还原操作
	var advert = this;
	var findactions = function(parentnode) {
		for(var i=parentnode.childnodes.length-1; i>=0; i--) {
			if(parentnode.childnodes[i].id!="closeadvert" && parentnode.childnodes[i].id!="minimizeadvert") {
				findactions(parentnode.childnodes[i]);
			}
			else { //关闭广告,最小化广告
				parentnode.childnodes[i].onmouseup = function() {
					var list = advert.getadverts(advert.advertputid);
					for(var j=0; j<list.length; j++) {
						if(this.id=="closeadvert") {
							list[j].display(true);
						}
						else {
							list[j].minimize();
						}
					}
				};
			}
		}
	};
	findactions(this.advertbody.childnodes[0]);
};

advert.adverts = new array(); //广告列表

advert.showadverts = function(prepose) { //显示广告
	for(var i=0; i<advert.adverts.length; i++) {
		if(advert.adverts[i].putmode=="static") { //固定位置广告
			continue;
		}
		if((prepose && advert.adverts[i].putmode=="pagetop") || //前置显示时,只显示投放模式为页面顶部的广告
		   (!prepose && advert.adverts[i].putmode!="pagetop")) {
			advert.adverts[i].create();
		}
	}
};

advert.getadverts = function(advertputid) { //获取广告列表
	var list = array();
	for(var i=0; i<advert.adverts.length; i++) {
		if(advert.adverts[i].advertputid==advertputid) {
			list[list.length] = advert.adverts[i];
		}
	}
	return list;
};