/*
Script: Array.Extras.js
	Extends the Array native object to include useful methods to work with arrays.

	License:
		MIT-style license.

	Authors:
		Christoph Pojer

*/
Array.implement({

	min: function(){
		return Math.min.apply(null, this);
	},

	max: function(){
		return Math.max.apply(null, this);
	},

	average: function(){
		return this.length ? this.sum() / this.length : 0;
	},

	sum: function(){
		var result = 0, l = this.length;
		if (l){
			do {
				result += this[--l];
			} while (l);
		}
		return result;
	},

	unique: function(){
		return [].combine(this);
	}

});

/*
Script: Date.js
	Extends the Date native object to include methods useful in managing dates.

	License:
		MIT-style license.

	Authors:
		Aaron Newton
		Nicholas Barthelemy - https://svn.nbarthelemy.com/date-js/
		Harald Kirshner - mail [at] digitarald.de; http://digitarald.de
		Scott Kyle - scott [at] appden.com; http://appden.com

*/

(function(){

if (!Date.now) Date.now = $time;

Date.Methods = {};

['Date', 'Day', 'FullYear', 'Hours', 'Milliseconds', 'Minutes', 'Month', 'Seconds', 'Time', 'TimezoneOffset',
	'Week', 'Timezone', 'GMTOffset', 'DayOfYear', 'LastMonth', 'LastDayOfMonth', 'UTCDate', 'UTCDay', 'UTCFullYear',
	'AMPM', 'Ordinal', 'UTCHours', 'UTCMilliseconds', 'UTCMinutes', 'UTCMonth', 'UTCSeconds'].each(function(method){
	Date.Methods[method.toLowerCase()] = method;
});

$each({
	ms: 'Milliseconds',
	year: 'FullYear',
	min: 'Minutes',
	mo: 'Month',
	sec: 'Seconds',
	hr: 'Hours'
}, function(value, key){
	Date.Methods[key] = value;
});

var zeroize = function(what, length){
	return new Array(length - what.toString().length + 1).join('0') + what;
};

Date.implement({

	set: function(prop, value){
		switch ($type(prop)){
			case 'object':
				for (var p in prop) this.set(p, prop[p]);
				break;
			case 'string':
				prop = prop.toLowerCase();
				var m = Date.Methods;
				if (m[prop]) this['set' + m[prop]](value);
		}
		return this;
	},

	get: function(prop){
		prop = prop.toLowerCase();
		var m = Date.Methods;
		if (m[prop]) return this['get' + m[prop]]();
		return null;
	},

	clone: function(){
		return new Date(this.get('time'));
	},

	increment: function(interval, times){
		interval = interval || 'day';
		times = $pick(times, 1);

		switch (interval){
			case 'year':
				return this.increment('month', times * 12);
			case 'month':
				var d = this.get('date');
				this.set('date', 1).set('mo', this.get('mo') + times);
				return this.set('date', d.min(this.get('lastdayofmonth')));
			case 'week':
				return this.increment('day', times * 7);
			case 'day':
				return this.set('date', this.get('date') + times);
		}

		if (!Date.units[interval]) throw new Error(interval + ' is not a supported interval');

		return this.set('time', this.get('time') + times * Date.units[interval]());
	},

	decrement: function(interval, times){
		return this.increment(interval, -1 * $pick(times, 1));
	},

	isLeapYear: function(){
		return Date.isLeapYear(this.get('year'));
	},

	clearTime: function(){
		return this.set({hr: 0, min: 0, sec: 0, ms: 0});
	},

	diff: function(d, resolution){
		resolution = resolution || 'day';
		if ($type(d) == 'string') d = Date.parse(d);

		switch (resolution){
			case 'year':
				return d.get('year') - this.get('year');
			case 'month':
				var months = (d.get('year') - this.get('year')) * 12;
				return months + d.get('mo') - this.get('mo');
			default:
				var diff = d.get('time') - this.get('time');
				if (Date.units[resolution]() > diff.abs()) return 0;
				return ((d.get('time') - this.get('time')) / Date.units[resolution]()).round();
		}

		return null;
	},

	getLastDayOfMonth: function(){
		return Date.daysInMonth(this.get('mo'), this.get('year'));
	},

	getDayOfYear: function(){
		return (Date.UTC(this.get('year'), this.get('mo'), this.get('date') + 1) 
			- Date.UTC(this.get('year'), 0, 1)) / Date.units.day();
	},

	getWeek: function(){
		return (this.get('dayofyear') / 7).ceil();
	},
	
	getOrdinal: function(day){
		return Date.getMsg('ordinal', day || this.get('date'));
	},

	getTimezone: function(){
		return this.toString()
			.replace(/^.*? ([A-Z]{3}).[0-9]{4}.*$/, '$1')
			.replace(/^.*?\(([A-Z])[a-z]+ ([A-Z])[a-z]+ ([A-Z])[a-z]+\)$/, '$1$2$3');
	},

	getGMTOffset: function(){
		var off = this.get('timezoneOffset');
		return ((off > 0) ? '-' : '+') + zeroize((off.abs() / 60).floor(), 2) + zeroize(off % 60, 2);
	},

	setAMPM: function(ampm){
		ampm = ampm.toUpperCase();
		var hr = this.get('hr');
		if (hr > 11 && ampm == 'AM') return this.decrement('hour', 12);
		else if (hr < 12 && ampm == 'PM') return this.increment('hour', 12);
		return this;
	},

	getAMPM: function(){
		return (this.get('hr') < 12) ? 'AM' : 'PM';
	},

	parse: function(str){
		this.set('time', Date.parse(str));
		return this;
	},

	isValid: function(date) {
		return !!(date || this).valueOf();
	},

	format: function(f){
		if (!this.isValid()) return 'invalid date';
		f = f || '%x %X';
		f = formats[f.toLowerCase()] || f; // replace short-hand with actual format
		var d = this;
		return f.replace(/%([a-z%])/gi,
			function($1, $2){
				switch ($2){
					case 'a': return Date.getMsg('days')[d.get('day')].substr(0, 3);
					case 'A': return Date.getMsg('days')[d.get('day')];
					case 'b': return Date.getMsg('months')[d.get('month')].substr(0, 3);
					case 'B': return Date.getMsg('months')[d.get('month')];
					case 'c': return d.toString();
					case 'd': return zeroize(d.get('date'), 2);
					case 'H': return zeroize(d.get('hr'), 2);
					case 'I': return ((d.get('hr') % 12) || 12);
					case 'j': return zeroize(d.get('dayofyear'), 3);
					case 'm': return zeroize((d.get('mo') + 1), 2);
					case 'M': return zeroize(d.get('min'), 2);
					case 'o': return d.get('ordinal');
					case 'p': return Date.getMsg(d.get('ampm'));
					case 'S': return zeroize(d.get('seconds'), 2);
					case 'U': return zeroize(d.get('week'), 2);
					case 'w': return d.get('day');
					case 'x': return d.format(Date.getMsg('shortDate'));
					case 'X': return d.format(Date.getMsg('shortTime'));
					case 'y': return d.get('year').toString().substr(2);
					case 'Y': return d.get('year');
					case 'T': return d.get('GMTOffset');
					case 'Z': return d.get('Timezone');
				}
				return $2;
			}
		);
	},

	toISOString: function(){
		return this.format('iso8601');
	}

});

Date.alias('diff', 'compare');
Date.alias('format', 'strftime');

var formats = {
	db: '%Y-%m-%d %H:%M:%S',
	compact: '%Y%m%dT%H%M%S',
	iso8601: '%Y-%m-%dT%H:%M:%S%T',
	rfc822: '%a, %d %b %Y %H:%M:%S %Z',
	'short': '%d %b %H:%M',
	'long': '%B %d, %Y %H:%M'
};

var nativeParse = Date.parse;

var parseWord = function(type, word, num){
	var ret = -1;
	var translated = Date.getMsg(type + 's');

	switch ($type(word)){
		case 'object':
			ret = translated[word.get(type)];
			break;
		case 'number':
			ret = translated[month - 1];
			if (!ret) throw new Error('Invalid ' + type + ' index: ' + index);
			break;
		case 'string':
			var match = translated.filter(function(name){
				return this.test(name);
			}, new RegExp('^' + word, 'i'));
			if (!match.length)    throw new Error('Invalid ' + type + ' string');
			if (match.length > 1) throw new Error('Ambiguous ' + type);
			ret = match[0];
	}

	return (num) ? translated.indexOf(ret) : ret;
};


Date.extend({

	getMsg: function(key, args) {
		return MooTools.lang.get('Date', key, args);
	},

	units: {
		ms: $lambda(1),
		second: $lambda(1000),
		minute: $lambda(60000),
		hour: $lambda(3600000),
		day: $lambda(86400000),
		week: $lambda(608400000),
		month: function(month, year){
			var d = new Date;
			return Date.daysInMonth($pick(month, d.get('mo')), $pick(year, d.get('year'))) * 86400000;
		},
		year: function(year){
			year = year || new Date().get('year');
			return Date.isLeapYear(year) ? 31622400000 : 31536000000;
		}
	},

	daysInMonth: function(month, year){
		return [31, Date.isLeapYear(year) ? 29 : 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31][month];
	},

	isLeapYear: function(year){
		return new Date(year, 1, 29).get('date') == 29;
	},

	parse: function(from){
		var t = $type(from);
		if (t == 'number') return new Date(from);
		if (t != 'string') return from;
		from = from.clean();
		if (!from.length) return null;

		var parsed;
		Date.parsePatterns.some(function(pattern){
			var r = pattern.re.exec(from);
			return (r) ? (parsed = pattern.handler(r)) : false;
		});

		return parsed || new Date(nativeParse(from));
	},

	parseDay: function(day, num){
		return parseWord('day', day, num);
	},

	parseMonth: function(month, num){
		return parseWord('month', month, num);
	},

	parseUTC: function(value){
		var localDate = new Date(value);
		var utcSeconds = Date.UTC(localDate.get('year'), 
		localDate.get('mo'),
		localDate.get('date'), 
		localDate.get('hr'), 
		localDate.get('min'), 
		localDate.get('sec'));
		return new Date(utcSeconds);
	},

	orderIndex: function(unit){
		return Date.getMsg('dateOrder').indexOf(unit) + 1;
	},

	defineFormat: function(name, format){
		formats[name] = format;
	},

	defineFormats: function(formats){
		for (var name in formats) Date.defineFormat(name, formats[f]);
	},

	parsePatterns: [],
	
	defineParser: function(pattern){
		Date.parsePatterns.push( pattern.re && pattern.handler ? pattern : build(pattern) );
	},
	
	defineParsers: function(){
		Array.flatten(arguments).each(Date.defineParser);
	},
	
	define2DigitYearStart: function(year){
		yr_start = year % 100;
		yr_base = year - yr_start;
	}

});

var yr_base = 1900;
var yr_start = 70;

var replacers = function(key){
	switch(key){
		case 'x': // iso8601 covers yyyy-mm-dd, so just check if month is first
			return (Date.orderIndex('month') == 1) ? '%m[.-/]%d([.-/]%y)?' : '%d[.-/]%m([.-/]%y)?';
		case 'X':
			return '%H([.:]%M)?([.:]%S([.:]%s)?)?\\s?%p?\\s?%T?';
		case 'o':
			return '[^\\d\\s]*';
	}
	return null;
};

var keys = {
	a: /[a-z]{3,}/,
	d: /[0-2]?[0-9]|3[01]/,
	H: /[01]?[0-9]|2[0-3]/,
	I: /0?[1-9]|1[0-2]/,
	M: /[0-5]?\d/,
	s: /\d+/,
	p: /[ap]\.?m\.?/,
	y: /\d{2}|\d{4}/,
	Y: /\d{4}/,
	T: /Z|[+-]\d{2}(?::?\d{2})?/
};

keys.B = keys.b = keys.A = keys.a;
keys.m = keys.I;
keys.S = keys.M;

var lang;

var build = function(format){
	if (!lang) return {format: format}; // wait until language is set
	
	var parsed = [null];

	var re = (format.source || format) // allow format to be regex
	 .replace(/%([a-z])/gi,
		function($1, $2){
			return replacers($2) || $1;
		}
	).replace(/\((?!\?)/g, '(?:') // make all groups non-capturing
	 .replace(/ (?!\?|\*)/g, ',? ') // be forgiving with spaces and commas
	 .replace(/%([a-z%])/gi,
		function($1, $2){
			var p = keys[$2];
			if (!p) return $2;
			parsed.push($2);
			return '(' + p.source + ')';
		}
	);

	return {
		format: format,
		re: new RegExp('^' + re + '$', 'i'),
		handler: function(bits){
			var date = new Date().clearTime();
			for (var i = 1; i < parsed.length; i++)
				date = handle.call(date, parsed[i], bits[i]);
			return date;
		}
	};
};

var handle = function(key, value){
	if (!value){
		if (key == 'm' || key == 'd') value = 1;
		else return this;
	}

	switch(key){
		case 'a': case 'A': return this.set('day', Date.parseDay(value, true));
		case 'b': case 'B': return this.set('mo', Date.parseMonth(value, true));
		case 'd': return this.set('date', value);
		case 'H': case 'I': return this.set('hr', value);
		case 'm': return this.set('mo', value - 1);
		case 'M': return this.set('min', value);
		case 'p': return this.set('ampm', value.replace(/\./g, ''));
		case 'S': return this.set('sec', value);
		case 's': return this.set('ms', ('0.' + value) * 1000);
		case 'w': return this.set('day', value);
		case 'Y': return this.set('year', value);
		case 'y':
			value = +value;
			if (value < 100) value += yr_base + (value < yr_start ? 100 : 0);
			return this.set('year', value);
		case 'T':
			if (value == 'Z') value = '+00';
			var offset = value.match(/([+-])(\d{2}):?(\d{2})?/);
			offset = (offset[1] + '1') * (offset[2] * 60 + (+offset[3] || 0)) + this.getTimezoneOffset();
			return this.set('time', (this * 1) - offset * 60000);
	}

	return this;
};

Date.defineParsers(
	'%Y([-./]%m([-./]%d((T| )%X)?)?)?', // "1999-12-31", "1999-12-31 11:59pm", "1999-12-31 23:59:59", ISO8601
	'%Y%m%d(T%H(%M%S?)?)?', // "19991231", "19991231T1159", compact
	'%x( %X)?', // "12/31", "12.31.99", "12-31-1999", "12/31/2008 11:59 PM"
	'%d%o( %b( %Y)?)?( %X)?', // "31st", "31st December", "31 Dec 1999", "31 Dec 1999 11:59pm"
	'%b %d%o?( %Y)?( %X)?', // Same as above with month and day switched
	'%b %Y' // "December 1999"
);

MooTools.lang.addEvent('langChange', function(language){
	if (!MooTools.lang.get('Date')) return;

	lang = language;
	Date.parsePatterns.each(function(pattern, i){
		if (pattern.format) Date.parsePatterns[i] = build(pattern.format);
	});

}).fireEvent('langChange', MooTools.lang.getCurrentLanguage());

})();

/*
Script: Date.Extras.js
	Extends the Date native object to include extra methods (on top of those in Date.js).

	License:
		MIT-style license.

	Authors:
		Aaron Newton

*/

Date.implement({

	timeDiffInWords: function(relative_to){
		return Date.distanceOfTimeInWords(this, relative_to || new Date);
	}

});

Date.alias('timeDiffInWords', 'timeAgoInWords');

Date.extend({

	distanceOfTimeInWords: function(from, to){
		return Date.getTimePhrase(((to - from) / 1000).toInt());
	},

	getTimePhrase: function(delta){
		var suffix = (delta < 0) ? 'Until' : 'Ago';
		if (delta < 0) delta *= -1;
		
		var msg = (delta < 60) ? 'lessThanMinute' :
				  (delta < 120) ? 'minute' :
				  (delta < (45 * 60)) ? 'minutes' :
				  (delta < (90 * 60)) ? 'hour' :
				  (delta < (24 * 60 * 60)) ? 'hours' :
				  (delta < (48 * 60 * 60)) ? 'day' :
				  'days';
		
		switch(msg){
			case 'minutes': delta = (delta / 60).round(); break;
			case 'hours':   delta = (delta / 3600).round(); break;
			case 'days': 	delta = (delta / 86400).round();
		}
		
		return Date.getMsg(msg + suffix, delta).substitute({delta: delta});
	}

});


Date.defineParsers(

	{
		// "today", "tomorrow", "yesterday"
		re: /^tod|tom|yes/i,
		handler: function(bits){
			var d = new Date().clearTime();
			switch(bits[0]){
				case 'tom': return d.increment();
				case 'yes': return d.decrement();
				default: 	return d;
			}
		}
	},

	{
		// "next Wednesday", "last Thursday"
		re: /^(next|last) ([a-z]+)$/i,
		handler: function(bits){
			var d = new Date().clearTime();
			var day = d.getDay();
			var newDay = Date.parseDay(bits[2], true);
			var addDays = newDay - day;
			if (newDay <= day) addDays += 7;
			if (bits[1] == 'last') addDays -= 7;
			return d.set('date', d.getDate() + addDays);
		}
	}

);


/*
Script: Hash.Extras.js
	Extends the Hash native object to include getFromPath which allows a path notation to child elements.

	License:
		MIT-style license.

	Authors:
		Aaron Newton
*/

Hash.implement({

	getFromPath: function(notation){
		var source = this.getClean();
		notation.replace(/\[([^\]]+)\]|\.([^.[]+)|[^[.]+/g, function(match){
			if (!source) return null;
			var prop = arguments[2] || arguments[1] || arguments[0];
			source = (prop in source) ? source[prop] : null;
			return match;
		});
		return source;
	},

	cleanValues: function(method){
		method = method || $defined;
		this.each(function(v, k){
			if (!method(v)) this.erase(k);
		}, this);
		return this;
	},

	run: function(){
		var args = arguments;
		this.each(function(v, k){
			if ($type(v) == 'function') v.run(args);
		});
	}

});

/*
Script: String.Extras.js
	Extends the String native object to include methods useful in managing various kinds of strings (query strings, urls, html, etc).

	License:
		MIT-style license.

	Authors:
		Aaron Newton
		Guillermo Rauch

*/

(function(){
  
var special = ['À','à','Á','á','Â','â','Ã','ã','Ä','ä','Å','å','Ă','ă','Ą','ą','Ć','ć','Č','č','Ç','ç', 'Ď','ď','Đ','đ', 'È','è','É','é','Ê','ê','Ë','ë','Ě','ě','Ę','ę', 'Ğ','ğ','Ì','ì','Í','í','Î','î','Ï','ï', 'Ĺ','ĺ','Ľ','ľ','Ł','ł', 'Ñ','ñ','Ň','ň','Ń','ń','Ò','ò','Ó','ó','Ô','ô','Õ','õ','Ö','ö','Ø','ø','ő','Ř','ř','Ŕ','ŕ','Š','š','Ş','ş','Ś','ś', 'Ť','ť','Ť','ť','Ţ','ţ','Ù','ù','Ú','ú','Û','û','Ü','ü','Ů','ů', 'Ÿ','ÿ','ý','Ý','Ž','ž','Ź','ź','Ż','ż', 'Þ','þ','Ð','ð','ß','Œ','œ','Æ','æ','µ'];

var standard = ['A','a','A','a','A','a','A','a','Ae','ae','A','a','A','a','A','a','C','c','C','c','C','c','D','d','D','d', 'E','e','E','e','E','e','E','e','E','e','E','e','G','g','I','i','I','i','I','i','I','i','L','l','L','l','L','l', 'N','n','N','n','N','n', 'O','o','O','o','O','o','O','o','Oe','oe','O','o','o', 'R','r','R','r', 'S','s','S','s','S','s','T','t','T','t','T','t', 'U','u','U','u','U','u','Ue','ue','U','u','Y','y','Y','y','Z','z','Z','z','Z','z','TH','th','DH','dh','ss','OE','oe','AE','ae','u'];

var tidymap = {
	"[\xa0\u2002\u2003\u2009]": " ",
	"\xb7": "*",
	"[\u2018\u2019]": "'",
	"[\u201c\u201d]": '"',
	"\u2026": "...",
	"\u2013": "-",
	"\u2014": "--",
	"\uFFFD": "&raquo;"
};

String.implement({

	standardize: function(){
		var text = this;
		special.each(function(ch, i){
			text = text.replace(new RegExp(ch, 'g'), standard[i]);
		});
		return text;
	},

	repeat: function(times){
		return new Array(times + 1).join(this);
	},

	pad: function(length, str, dir){
		if (this.length >= length) return this;
		str = str || ' ';
		var pad = str.repeat(length - this.length).substr(0, length - this.length);
		if (!dir || dir == 'right') return this + pad;
		if (dir == 'left') return pad + this;
		return pad.substr(0, (pad.length / 2).floor()) + this + pad.substr(0, (pad.length / 2).ceil());
	},

	stripTags: function(){
		return this.replace(/<\/?[^>]+>/gi, '');
	},

	tidy: function(){
		var txt = this.toString();
		$each(tidymap, function(value, key){
			txt = txt.replace(new RegExp(key, 'g'), value);
		});
		return txt;
	}

});

})();

/*
Script: String.QueryString.js
	...

	License:
		MIT-style license.

	Authors:
		Sebastian Markbåge, Aaron Newton, Lennart Pilon, Valerio Proietti
*/

String.implement({

	parseQueryString: function(){
		var vars = this.split(/[&;]/), res = {};
		if (vars.length) vars.each(function(val){
			var index = val.indexOf('='),
				keys = index < 0 ? [''] : val.substr(0, index).match(/[^\]\[]+/g),
				value = decodeURIComponent(val.substr(index + 1)),
				obj = res;
			keys.each(function(key, i){
				var current = obj[key];
				if(i < keys.length - 1)
					obj = obj[key] = current || {};
				else if($type(current) == 'array')
					current.push(value);
				else
					obj[key] = $defined(current) ? [current, value] : value;
			});
		});
		return res;
	},

	cleanQueryString: function(method){
		return this.split('&').filter(function(val){
			var index = val.indexOf('='),
			key = index < 0 ? '' : val.substr(0, index),
			value = val.substr(index + 1);
			return method ? method.run([key, value]) : $chk(value);
		}).join('&');
	}

});

/*
Script: URI.js
	Provides methods useful in managing the window location and uris.

	License:
		MIT-style license.

	Authors:
		Sebastian Markb�ge, Aaron Newton
*/

var URI = new Class({

	Implements: Options,

	/*
	options: {
		base: false
	},
	*/

	regex: /^(?:(\w+):)?(?:\/\/(?:(?:([^:@]*):?([^:@]*))?@)?([^:\/?#]*)(?::(\d*))?)?(\.\.?$|(?:[^?#\/]*\/)*)([^?#]*)(?:\?([^#]*))?(?:#(.*))?/,
	parts: ['scheme', 'user', 'password', 'host', 'port', 'directory', 'file', 'query', 'fragment'],
	schemes: { http: 80, https: 443, ftp: 21, rtsp: 554, mms: 1755, file: 0 },

	initialize: function(uri, options){
		this.setOptions(options);
		var base = this.options.base || URI.base;
		uri = uri || base;
		if (uri && uri.parsed)
			this.parsed = $unlink(uri.parsed);
		else
			this.set('value', uri.href || uri.toString(), base ? new URI(base) : false);
	},

	parse: function(value, base){
		var bits = value.match(this.regex);
		if (!bits) return false;
		bits.shift();
		return this.merge(bits.associate(this.parts), base);
	},

	merge: function(bits, base){
		if ((!bits || !bits.scheme) && (!base || !base.scheme)) return false;
		if (base){
			this.parts.every(function(part){
				if (bits[part]) return false;
				bits[part] = base[part] || '';
				return true;
			});
		}
		bits.port = bits.port || this.schemes[bits.scheme.toLowerCase()];
		bits.directory = bits.directory ? this.parseDirectory(bits.directory, base ? base.directory : '') : '/';
		return bits;
	},

	parseDirectory: function(directory, baseDirectory) {
		directory = (directory.substr(0, 1) == '/' ? '' : (baseDirectory || '/')) + directory;
		if (!directory.test(URI.regs.directoryDot)) return directory;
		var result = [];
		directory.replace(URI.regs.endSlash, '').split('/').each(function(dir){
			if (dir == '..' && result.length > 0) result.pop();
			else if (dir != '.') result.push(dir);
		});
		return result.join('/') + '/';
	},

	combine: function(bits){
		return bits.value || bits.scheme + '://' +
			(bits.user ? bits.user + (bits.password ? ':' + bits.password : '') + '@' : '') +
			(bits.host || '') + (bits.port && bits.port != this.schemes[bits.scheme] ? ':' + bits.port : '') +
			(bits.directory || '/') + (bits.file || '') +
			(bits.query ? '?' + bits.query : '') +
			(bits.fragment ? '#' + bits.fragment : '');
	},

	set: function(part, value, base){
		if (part == 'value'){
			var scheme = value.match(URI.regs.scheme);
			if (scheme) scheme = scheme[1];
			if (scheme && !$defined(this.schemes[scheme.toLowerCase()])) this.parsed = { scheme: scheme, value: value };
			else this.parsed = this.parse(value, (base || this).parsed) || (scheme ? { scheme: scheme, value: value } : { value: value });
		} else if (part == 'data') {
			this.setData(value);
		} else {
			this.parsed[part] = value;
		}
		return this;
	},

	get: function(part, base){
		switch(part){
			case 'value': return this.combine(this.parsed, base ? base.parsed : false);
			case 'data' : return this.getData();
		}
		return this.parsed[part] || undefined;
	},

	go: function(){
		document.location.href = this.toString();
	},

	toURI: function(){
		return this;
	},

	getData: function(key, part){
		var qs = this.get(part || 'query');
		if (!$chk(qs)) return key ? null : {};
		var obj = qs.parseQueryString();
		return key ? obj[key] : obj;
	},

	setData: function(values, merge, part){
		if ($type(arguments[0]) == 'string'){ 
			values = this.getData(); 
			values[arguments[0]] = arguments[1]; 
		} else if (merge) {
			values = $merge(this.getData(), values);
		}
		return this.set(part || 'query', Hash.toQueryString(values));
	},

	clearData: function(part){
		return this.set(part || 'query', '');
	}

});

['toString', 'valueOf'].each(function(method){
	URI.prototype[method] = function(){
		return this.get('value');
	};
});


URI.regs = {
	endSlash: /\/$/,
	scheme: /^(\w+):/,
	directoryDot: /\.\/|\.$/
};

URI.base = new URI($$('base[href]').getLast(), { base: document.location });

String.implement({

	toURI: function(options){ return new URI(this, options); }

});

/*
Script: URI.Relative.js
	Extends the URI class to add methods for computing relative and absolute urls.

	License:
		MIT-style license.

	Authors:
		Sebastian Markbåge
*/

URI = Class.refactor(URI, {

	combine: function(bits, base){
		if (!base || bits.scheme != base.scheme || bits.host != base.host || bits.port != base.port)
			return this.previous.apply(this, arguments);
		var end = bits.file + (bits.query ? '?' + bits.query : '') + (bits.fragment ? '#' + bits.fragment : '');

		if (!base.directory) return (bits.directory || (bits.file ? '' : './')) + end;

		var baseDir = base.directory.split('/'),
			relDir = bits.directory.split('/'),
			path = '',
			offset;

		var i = 0;
		for(offset = 0; offset < baseDir.length && offset < relDir.length && baseDir[offset] == relDir[offset]; offset++);
		for(i = 0; i < baseDir.length - offset - 1; i++) path += '../';
		for(i = offset; i < relDir.length - 1; i++) path += relDir[i] + '/';

		return (path || (bits.file ? '' : './')) + end;
	},

	toAbsolute: function(base){
		base = new URI(base);
		if (base) base.set('directory', '').set('file', '');
		return this.toRelative(base);
	},

	toRelative: function(base){
		return this.get('value', new URI(base));
	}

});