function adriver(ph, prm, defer) {
	if (this instanceof adriver) {
		var p = null;
		if (typeof(ph) == "string") {
			p = document.getElementById(ph);
		} else {
			p = ph;
			ph = p.id;
		}

		if (!p) {
			if (!adriver.isDomReady) adriver.onDomReady(function() {
				new adriver(ph, prm, defer)
			});
			return null
		}
		if (adriver.items[ph]) {
			return adriver.items[ph]
		}

		adriver.items[ph] = this;
		this.p = p;
		this.defer = defer;
		this.prm = adriver.extend(prm, {ph: ph});

		this.loadCompleteQueue = new adriver.queue();
		this.domReadyQueue = new adriver.queue(adriver.isDomReady);
		var my = this;
		adriver.initQueue.push(function() {
			my.init()
		});
		return this;
	} else {
		return arguments.length ? adriver.items[ph] : adriver.items;
	}
}

adriver.prototype = {
	isLoading: 0,

	init: function() {
	},
	loadComplete: function() {
	},
	domReady: function() {
	},

	onLoadComplete: function(f) {
		var my = this;
		this.loadCompleteQueue.push(function() {
			f.call(my)
		});
		return this;
	},
	onDomReady: function(f) {
		this.domReadyQueue.push(f);
		return this;
	},
	reset: function() {
		this.loadCompleteQueue.flush();
		this.domReadyQueue.flush(adriver.isDomReady);
		return this;
	}
}

adriver.loadScript = function(req) {
	try {
		req = req.replace(/!\[rnd\]/, Math.round(Math.random() * 9999999));
		var head = document.getElementsByTagName("head")[0];
		var s = document.createElement("script");
		s.setAttribute("type", "text/javascript");
		s.setAttribute("charset", "windows-1251");
		s.setAttribute("src", req);
		s.onreadystatechange = function() {
			if (/loaded|complete/.test(this.readyState)) {
				s.onload = null;
				head.removeChild(s)
			}
		};
		s.onload = function(e) {
			if (head && s)head.removeChild(s)
		};
		head.insertBefore(s, head.firstChild);
	} catch(e) {
	}
}

adriver.extend = function() {
	var l = arguments[0];
	for (var i = 1, len = arguments.length; i < len; i++) {
		var r = arguments[i];
		for (var j in r) {
			if (r.hasOwnProperty(j)) {
				if (r[j] instanceof Object) {
					if (l[j]) {
						adriver.extend(l[j], r[j]);
					} else {
						l[j] = adriver.extend(r[j] instanceof Array ? [] : {}, r[j]);
					}
				} else {
					l[j] = r[j];
				}
			}
		}
	}
	return l
}

adriver.queue = function(flag) {
	this.q = [];
	this.flag = flag ? true : false
}
adriver.queue.prototype = {
	push: function(f) {
		this.flag ? f() : this.q.push(f)
	},
	unshift: function(f) {
		this.flag ? f() : this.q.unshift(f)
	},
	execute: function(flag) {
		var f;
		var undefined;
		while (f = this.q.shift()) f();
		if (flag == undefined) flag = true;
		this.flag = flag ? true : false
	},
	flush: function(flag) {
		this.q.length = 0;
		this.flag = flag ? true : false
	}
}

adriver.Plugin = function(id) {
	if (this instanceof adriver.Plugin) {
		if (id && !adriver.plugins[id]) {
			this.id = id;
			this.q = new adriver.queue();
			this.loadingStatus = 0;
			adriver.plugins[id] = this;
			return this;
		}
	}
	return adriver.plugins[id];
}
adriver.Plugin.prototype = {
	load: function() {
		this.loadingStatus = 1;
		var suffix = this.id.substr(this.id.lastIndexOf('.') + 1);
		var pluginPath = adriver.pluginPath[suffix] || adriver.defaultMirror + "/plugins/";
		adriver.loadScript(pluginPath + this.id + ".js");
	},
	loadComplete: function() {
		this.loadingStatus = 2;
		this.q.execute();
		return this
	},
	onLoadComplete: function(f) {
		this.q.push(f);
		return this
	}
}
adriver.Plugin.require = function() {
	var me = this, counter = 0;
	this.q = new adriver.queue();

	for (var i = 0, len = arguments.length; i < len; i ++) {
		var p = new adriver.Plugin(arguments[i]);
		if (p.loadingStatus != 2) {
			counter++;
			p.onLoadComplete(function() {
				if (counter-- == 1) {
					me.q.execute()
				}
			});
			if (!p.loadingStatus) p.load();
		}
	}
	if (!counter) {
		this.q.execute()
	}
}
adriver.Plugin.require.prototype.onLoadComplete = function(f) {
	this.q.push(f);
	return this
}

adriver.onDomReady = function(f) {
	adriver.domReadyQueue.push(f);
}
adriver.onBeforeDomReady = function(f) {
	adriver.domReadyQueue.unshift(f);
}
adriver.domReady = function() {
	adriver.isDomReady = true;
	adriver.domReadyQueue.execute();
}
adriver.checkDomReady = function(f) {
	try {
		var d = document, oldOnload = window.onload;
		if (/WebKit/i.test(navigator.userAgent)) {
			(function() {
				/loaded|complete/.test(d.readyState) ? f() : setTimeout(arguments.callee, 100)
			})()
		}
		else if (d.addEventListener) {
			d.addEventListener("DOMContentLoaded", f, false)
		}
		else if (document.attachEvent) {
			var doScrollCheck = function() {
				if (adriver.isDomReady) {
					return;
				}
				try {
					document.documentElement.doScroll("left");
				} catch(e) {
					setTimeout(doScrollCheck, 1);
					return;
				}
				f();
			}
			var DOMContentLoaded = function() {
				if (document.readyState === "complete") {
					document.detachEvent("onreadystatechange", DOMContentLoaded);
					f();
				}
			}
			document.attachEvent("onreadystatechange", DOMContentLoaded);
			window.attachEvent("onload", function() {
				if (adriver.isDomReady)return;
				f();
			});
			try {
				toplevel = window.frameElement == null;
			} catch(e) {
			}
			if (document.documentElement.doScroll && toplevel) {
				doScrollCheck();
			}
		}
	} catch (e) {
	}
}

adriver.onLoadComplete = function(f) {
	adriver.loadCompleteQueue.push(f);
	return adriver;
}
adriver.loadComplete = function() {
	adriver.loadCompleteQueue.execute();
	return adriver;
}

adriver.setDefaults = function(defaults) {
	adriver.extend(adriver.defaults, defaults)
}
adriver.setOptions = function(options) {
	adriver.extend(adriver.options, options)
}
adriver.setPluginPath = function(path) {
	adriver.extend(adriver.pluginPath, path)
}

adriver.start = function() {
	adriver.version = "2.3.4";
	adriver.items = {};
	adriver.defaults = {tail256: escape(document.referrer || 'unknown')};
	adriver.options = {};
	adriver.plugins = {};
	adriver.pluginPath = {};
	adriver.redirectHost = "http://ad.adriver.ru";
	adriver.defaultMirror = "http://content.adriver.ru";
	adriver.isDomReady = false;
	adriver.domReadyQueue = new adriver.queue();
	adriver.loadCompleteQueue = new adriver.queue();
	adriver.initQueue = new adriver.queue();

	adriver.checkDomReady(adriver.domReady);

	new adriver.Plugin.require("autoUpdate.adriver").onLoadComplete(function() {
		adriver.initQueue.execute();
	});
}

adriver.start();