(function($) {

$.extend($.fn, {
	livequery: function(type, fn, fn2) {
		var self = this, q;

		if ($.isFunction(type))
			fn2 = fn, fn = type, type = undefined;

		$.each( $.livequery.queries, function(i, query) {
			if ( self.selector == query.selector && self.context == query.context &&
				type == query.type && (!fn || fn.$lqguid == query.fn.$lqguid) && (!fn2 || fn2.$lqguid == query.fn2.$lqguid) )

					return (q = query) && false;
		});

		q = q || new $.livequery(this.selector, this.context, type, fn, fn2);

		q.stopped = false;

		q.run();

		return this;
	},

	expire: function(type, fn, fn2) {
		var self = this;

		if ($.isFunction(type))
			fn2 = fn, fn = type, type = undefined;

		$.each( $.livequery.queries, function(i, query) {
			if ( self.selector == query.selector && self.context == query.context &&
				(!type || type == query.type) && (!fn || fn.$lqguid == query.fn.$lqguid) && (!fn2 || fn2.$lqguid == query.fn2.$lqguid) && !this.stopped )
					$.livequery.stop(query.id);
		});

		return this;
	}
});

$.livequery = function(selector, context, type, fn, fn2) {
	this.selector = selector;
	this.context  = context || document;
	this.type     = type;
	this.fn       = fn;
	this.fn2      = fn2;
	this.elements = [];
	this.stopped  = false;

	this.id = $.livequery.queries.push(this)-1;

	fn.$lqguid = fn.$lqguid || $.livequery.guid++;
	if (fn2) fn2.$lqguid = fn2.$lqguid || $.livequery.guid++;

	return this;
};

$.livequery.prototype = {
	stop: function() {
		var query = this;

		if ( this.type )
			this.elements.unbind(this.type, this.fn);
		else if (this.fn2)
			this.elements.each(function(i, el) {
				query.fn2.apply(el);
			});

		this.elements = [];

		this.stopped = true;
	},

	run: function() {
		if ( this.stopped ) return;
		var query = this;

		var oEls = this.elements,
			els  = $(this.selector, this.context),
			nEls = els.not(oEls);

		this.elements = els;

		if (this.type) {
			nEls.bind(this.type, this.fn);

			if (oEls.length > 0)
				$.each(oEls, function(i, el) {
					if ( $.inArray(el, els) < 0 )
						$.event.remove(el, query.type, query.fn);
				});
		}
		else {
			nEls.each(function() {
				query.fn.apply(this);
			});

			if ( this.fn2 && oEls.length > 0 )
				$.each(oEls, function(i, el) {
					if ( $.inArray(el, els) < 0 )
						query.fn2.apply(el);
				});
		}
	}
};

$.extend($.livequery, {
	guid: 0,
	queries: [],
	queue: [],
	running: false,
	timeout: null,

	checkQueue: function() {
		if ( $.livequery.running && $.livequery.queue.length ) {
			var length = $.livequery.queue.length;
			while ( length-- )
				$.livequery.queries[ $.livequery.queue.shift() ].run();
		}
	},

	pause: function() {
		$.livequery.running = false;
	},

	play: function() {
		$.livequery.running = true;
		$.livequery.run();
	},

	registerPlugin: function() {
		$.each( arguments, function(i,n) {
			if (!$.fn[n]) return;

			var old = $.fn[n];

			$.fn[n] = function() {
				var r = old.apply(this, arguments);

				$.livequery.run();

				return r;
			}
		});
	},

	run: function(id) {
		if (id != undefined) {
			if ( $.inArray(id, $.livequery.queue) < 0 )
				$.livequery.queue.push( id );
		}
		else
			$.each( $.livequery.queries, function(id) {
				if ( $.inArray(id, $.livequery.queue) < 0 )
					$.livequery.queue.push( id );
			});

		if ($.livequery.timeout) clearTimeout($.livequery.timeout);
		$.livequery.timeout = setTimeout($.livequery.checkQueue, 20);
	},

	stop: function(id) {
		if (id != undefined)
			$.livequery.queries[ id ].stop();
		else
			$.each( $.livequery.queries, function(id) {
				$.livequery.queries[ id ].stop();
			});
	}
});
$.livequery.registerPlugin('append', 'prepend', 'after', 'before', 'wrap', 'attr', 'removeAttr', 'addClass', 'removeClass', 'toggleClass', 'empty', 'remove');
$(function() { $.livequery.play(); });

var init = $.prototype.init;

$.prototype.init = function(a,c) {
	var r = init.apply(this, arguments);

	if (a && a.selector)
		r.context = a.context, r.selector = a.selector;

	if ( typeof a == 'string' )
		r.context = c || document, r.selector = a;

	return r;
};

$.prototype.init.prototype = $.prototype;

})(jQuery);