/*MooTools, My Object Oriented Javascript Tools. Copyright (c) 2006-2007 Valerio Proietti, <http://mad4milk.net>, MIT Style License.||CNET Libraries Copyright (c) 2006-2008, http://clientside.cnet.com/wiki/cnet-libraries#license*/

new Native({name:'Date',initialize:Date,protect:true});['now','parse','UTC'].each(function(method){Native.genericize(Date,method,true)});Date.$Methods=new Hash();["Date","Day","FullYear","Hours","Milliseconds","Minutes","Month","Seconds","Time","TimezoneOffset","Week","Timezone","GMTOffset","DayOfYear","LastMonth","UTCDate","UTCDay","UTCFullYear","AMPM","UTCHours","UTCMilliseconds","UTCMinutes","UTCMonth","UTCSeconds"].each(function(method){Date.$Methods.set(method.toLowerCase(),method)});$each({ms:"Milliseconds",year:"FullYear",min:"Minutes",mo:"Month",sec:"Seconds",hr:"Hours"},function(value,key){Date.$Methods.set(key,value)});Date.implement({set:function(key,value){key=key.toLowerCase();var m=Date.$Methods;if(m.has(key))this['set'+m.get(key)](value);return this},get:function(key){key=key.toLowerCase();var m=Date.$Methods;if(m.has(key))return this['get'+m.get(key)]();return null},clone:function(){return new Date(this.get('time'))},increment:function(interval,times){return this.multiply(interval,times)},decrement:function(interval,times){return this.multiply(interval,times,false)},multiply:function(interval,times,increment){interval=interval||'day';times=$pick(times,1);increment=$pick(increment,true);var multiplier=increment?1:-1;var month=this.format("%m").toInt()-1;var year=this.format("%Y").toInt();var time=this.get('time');var offset=0;switch(interval){case'year':times.times(function(val){if(Date.isLeapYear(year+val)&&month>1&&multiplier>0)val++;if(Date.isLeapYear(year+val)&&month<=1&&multiplier<0)val--;offset+=Date.$units.year(year+val)});break;case'month':times.times(function(val){if(multiplier<0)val++;var mo=month+(val*multiplier);var year=year;if(mo<0){year--;mo=12+mo}if(mo>11||mo<0){year+=(mo/12).toInt()*multiplier;mo=mo%12}offset+=Date.$units.month(mo,year)});break;default:offset=Date.$units[interval]()*times;break}this.set('time',time+(offset*multiplier));return this},isLeapYear:function(){return Date.isLeapYear(this.get('year'))},clearTime:function(){this.set('hr',0);this.set('min',0);this.set('sec',0);this.set('ms',0);return this},diff:function(d,resolution){resolution=resolution||'day';if($type(d)=='string')d=Date.parse(d);switch(resolution){case'year':return d.format("%Y").toInt()-this.format("%Y").toInt();break;case'month':var months=(d.format("%Y").toInt()-this.format("%Y").toInt())*12;return months+d.format("%m").toInt()-this.format("%m").toInt();break;default:var diff=d.get('time')-this.get('time');if(diff<0&&Date.$units[resolution]()>(-1*(diff)))return 0;else if(diff>=0&&diff<Date.$units[resolution]())return 0;return((d.get('time')-this.get('time'))/Date.$units[resolution]()).round()}},getWeek:function(){var day=(new Date(this.get('year'),0,1)).get('date');return Math.round((this.get('dayofyear')+(day>3?day-4:day+3))/7)},getTimezone:function(){return this.toString().replace(/^.*? ([A-Z]{3}).[0-9]{4}.*$/,'$1').replace(/^.*?\(([A-Z])[a-z]+ ([A-Z])[a-z]+ ([A-Z])[a-z]+\)$/,'$1$2$3')},getGMTOffset:function(){var off=this.get('timezoneOffset');return((off>0)?'-':'+')+Math.floor(Math.abs(off)/60).zeroise(2)+(off%60).zeroise(2)},parse:function(str){this.set('time',Date.parse(str));return this},format:function(f){f=f||"%x %X";if(!this.valueOf())return'invalid date';if(Date.$formats[f.toLowerCase()])f=Date.$formats[f.toLowerCase()];var d=this;return f.replace(/\%([aAbBcdHIjmMpSUWwxXyYTZ])/g,function($1,$2){switch($2){case'a':return Date.$days[d.get('day')].substr(0,3);case'A':return Date.$days[d.get('day')];case'b':return Date.$months[d.get('month')].substr(0,3);case'B':return Date.$months[d.get('month')];case'c':return d.toString();case'd':return d.get('date').zeroise(2);case'H':return d.get('hr').zeroise(2);case'I':return((d.get('hr')%12)||12);case'j':return d.get('dayofyear').zeroise(3);case'm':return(d.get('mo')+1).zeroise(2);case'M':return d.get('min').zeroise(2);case'p':return d.get('hr')<12?'AM':'PM';case'S':return d.get('seconds').zeroise(2);case'U':return d.get('week').zeroise(2);case'W':throw new Error('%W is not supported yet');case'w':return d.get('day');case'x':var c=Date.$cultures[Date.$culture];return d.format('%'+c[0].substr(0,1)+c[3]+'%'+c[1].substr(0,1)+c[3]+'%'+c[2].substr(0,1).toUpperCase());case'X':return d.format('%I:%M%p');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');case'%':return'%'}return $2})},setAMPM:function(ampm){ampm=ampm.toUpperCase();if(this.format("%H").toInt()>11&&ampm=="AM")return this.decrement('hour',12);else if(this.format("%H").toInt()<12&&ampm=="PM")return this.increment('hour',12);return this}});Date.prototype.compare=Date.prototype.diff;Date.prototype.strftime=Date.prototype.format;Date.$nativeParse=Date.parse;$extend(Date,{$months:['January','February','March','April','May','June','July','August','September','October','November','December'],$days:['Sunday','Monday','Tuesday','Wednesday','Thursday','Friday','Saturday'],$daysInMonth:function(monthIndex,year){if(Date.isLeapYear(year.toInt())&&monthIndex===1)return 29;return[31,28,31,30,31,30,31,31,30,31,30,31][monthIndex]},$epoch:-1,$era:-2,$units:{ms:function(){return 1},second:function(){return 1000},minute:function(){return 60000},hour:function(){return 3600000},day:function(){return 86400000},week:function(){return 608400000},month:function(monthIndex,year){var d=new Date();return Date.$daysInMonth($pick(monthIndex,d.format("%m").toInt()),$pick(year,d.format("%Y").toInt()))*86400000},year:function(year){year=year||new Date().format("%Y").toInt();return Date.isLeapYear(year.toInt())?31622400000:31536000000}},$formats:{db:'%Y-%m-%d %H:%M:%S',compact:'%Y%m%dT%H%M%S',iso8601:'%Y-%m-%dT%H:%M:%S%T',rfc822:'%a, %d %b %Y %H:%M:%S %Z','short':'%d %b %H:%M','long':'%B %d, %Y %H:%M'},isLeapYear:function(yr){return new Date(yr,1,29).getDate()==29},parseUTC:function(value){var localDate=new Date(value);var utcSeconds=Date.UTC(localDate.get('year'),localDate.get('mo'),localDate.get('date'),localDate.get('hr'),localDate.get('min'),localDate.get('sec'));return new Date(utcSeconds)},parse:function(from){var type=$type(from);if(type=='number')return new Date(from);if(type!='string')return from;if(!from.length)return null;for(var i=0,j=Date.$parsePatterns.length;i<j;i++){var r=Date.$parsePatterns[i].re.exec(from);if(r){try{return Date.$parsePatterns[i].handler(r)}catch(e){dbug.log('date parse error: ',e);return null}}}return new Date(Date.$nativeParse(from))},parseMonth:function(month,num){var ret=-1;switch($type(month)){case'object':ret=Date.$months[month.get('mo')];break;case'number':ret=Date.$months[month-1]||false;if(!ret)throw new Error('Invalid month index value must be between 1 and 12:'+index);break;case'string':var match=Date.$months.filter(function(name){return this.test(name)},new RegExp('^'+month,'i'));if(!match.length)throw new Error('Invalid month string');if(match.length>1)throw new Error('Ambiguous month');ret=match[0]}return(num)?Date.$months.indexOf(ret):ret},parseDay:function(day,num){var ret=-1;switch($type(day)){case'number':ret=Date.$days[day-1]||false;if(!ret)throw new Error('Invalid day index value must be between 1 and 7');break;case'string':var match=Date.$days.filter(function(name){return this.test(name)},new RegExp('^'+day,'i'));if(!match.length)throw new Error('Invalid day string');if(match.length>1)throw new Error('Ambiguous day');ret=match[0]}return(num)?Date.$days.indexOf(ret):ret},fixY2K:function(d){if(!isNaN(d)){var newDate=new Date(d);if(newDate.get('year')<2000&&d.toString().indexOf(newDate.get('year'))<0){newDate.increment('year',100)}return newDate}else return d},$cultures:{'US':['month','date','year','/'],'GB':['date','month','year','/']},$culture:'US',$cIndex:function(unit){return Date.$cultures[Date.$culture].indexOf(unit)+1},$parsePatterns:[{re:/^(\d{1,2})[\.\-\/](\d{1,2})[\.\-\/](\d{2,4})$/,handler:function(bits){var d=new Date();var culture=Date.$cultures[Date.$culture];d.set('year',bits[Date.$cIndex('year')]);d.set('month',bits[Date.$cIndex('month')]-1);d.set('date',bits[Date.$cIndex('date')]);return Date.fixY2K(d)}},{re:/^(\d{1,2})[\.\-\/](\d{1,2})[\.\-\/](\d{2,4})\s(\d{1,2}):(\d{1,2})(\w{2})$/,handler:function(bits){var d=new Date();d.set('year',bits[Date.$cIndex('year')]);d.set('month',bits[Date.$cIndex('month')]-1);d.set('date',bits[Date.$cIndex('date')]);d.set('hr',bits[4]);d.set('min',bits[5]);d.set('ampm',bits[6]);return Date.fixY2K(d)}}]});Number.implement({zeroise:function(length){return String(this).zeroise(length)}});String.implement({repeat:function(times){var ret=[];for(var i=0;i<times;i++)ret.push(this);return ret.join('')},zeroise:function(length){return'0'.repeat(length-this.length)+this}});["LastDayOfMonth","Ordinal"].each(function(method){Date.$Methods.set(method.toLowerCase(),method)});Date.implement({timeAgoInWords:function(){var relative_to=(arguments.length>0)?arguments[1]:new Date();return Date.distanceOfTimeInWords(this,relative_to,arguments[2])},getOrdinal:function(){var test=this.get('date');return(test>3&&test<21)?'th':['th','st','nd','rd','th'][Math.min(test%10,4)]},getDayOfYear:function(){return((Date.UTC(this.getFullYear(),this.getMonth(),this.getDate()+1,0,0,0)-Date.UTC(this.getFullYear(),0,1,0,0,0))/Date.$units.day())},getLastDayOfMonth:function(){var ret=this.clone();ret.setMonth(ret.getMonth()+1,0);return ret.getDate()}});$extend(Date,{distanceOfTimeInWords:function(fromTime,toTime,includeTime){var delta=((toTime.getTime()-fromTime.getTime())/1000).toInt();if(delta<60){return'less than a minute ago'}else if(delta<120){return'about a minute ago'}else if(delta<(45*60)){return(delta/60).round()+' minutes ago'}else if(delta<(90*60)){return'about an hour ago'}else if(delta<(24*60*60)){return'about '+(delta/3600).round()+' hours ago'}else if(delta<(48*60*60)){return'1 day ago'}else{var days=(delta/86400).round();if(days>30){var fmt='%B %d';if(toTime.getYear()!=fromTime.getYear()){fmt+=', %Y'}if(includeTime)fmt+=' %I:%M %p';return fromTime.strftime(fmt)}else{return days+" days ago"}}}});Date.$parsePatterns.extend([{re:/^(\d{4})(?:-?(\d{2})(?:-?(\d{2})(?:[T](\d{2})(?::?(\d{2})(?::?(\d{2})(?:\.(\d+))?)?)?(?:Z|(?:([-+])(\d{2})(?::?(\d{2}))?)?)?)?)?)?$/,handler:function(bits){var offset=0;var d=new Date(bits[1],0,1);if(bits[2])d.setMonth(bits[2]-1);if(bits[3])d.setDate(bits[3]);if(bits[4])d.setHours(bits[4]);if(bits[5])d.setMinutes(bits[5]);if(bits[6])d.setSeconds(bits[6]);if(bits[7])d.setMilliseconds(('0.'+bits[7]).toInt()*1000);if(bits[9]){offset=(bits[9].toInt()*60)+bits[10].toInt();offset*=((bits[8]=='-')?1:-1)}offset-=d.getTimezoneOffset();d.setTime((d*1)+(offset*60*1000).toInt());return d}},{re:/^tod/i,handler:function(){return new Date()}},{re:/^tom/i,handler:function(){return new Date().increment()}},{re:/^yes/i,handler:function(){return new Date().decrement()}},{re:/^(\d{1,2})(st|nd|rd|th)?$/i,handler:function(bits){var d=new Date();d.setDate(bits[1].toInt());return d}},{re:/^(\d{1,2})(?:st|nd|rd|th)?(\w+)$/i,handler:function(bits){var d=new Date();d.setMonth(Date.parseMonth(bits[2],true),bits[1].toInt());return d}},{re:/^(\d{1,2})(?:st|nd|rd|th)?(\w+),?(\d{4})$/i,handler:function(bits){var d=new Date();d.setMonth(Date.parseMonth(bits[2],true),bits[1].toInt());d.setYear(bits[3]);return d}},{re:/^(\w+)(\d{1,2})(?:st|nd|rd|th)?,?(\d{4})$/i,handler:function(bits){var d=new Date();d.setMonth(Date.parseMonth(bits[1],true),bits[2].toInt());d.setYear(bits[3]);return d}},{re:/^next(\w+)$/i,handler:function(bits){var d=new Date();var day=d.getDay();var newDay=Date.parseDay(bits[1],true);var addDays=newDay-day;if(newDay<=day){addDays+=7}d.setDate(d.getDate()+addDays);return d}},{re:/^\d+\s[a-zA-z]..\s\d.\:\d.$/,handler:function(bits){var d=new Date();bits=bits[0].split(" ");d.setDate(bits[0]);var m;Date.$months.each(function(mo,i){if(new RegExp("^"+bits[1]).test(mo))m=i});d.setMonth(m);d.setHours(bits[2].split(":")[0]);d.setMinutes(bits[2].split(":")[1]);d.setMilliseconds(0);return d}}]);Hash.implement({getFromPath:function(notation){var source=this.getClean();notation.replace(/\[([^\]]+)\]|\.([^.[]+)|[^[.]+/g,function(match){if(!source)return;var prop=arguments[2]||arguments[1]||arguments[0];source=(prop in source)?source[prop]:null;return match});return source},cleanValues:function(method){method=method||$defined;this.each(function(v,k){if(!method(v))this.erase(k)},this);return this}});String.implement({stripTags:function(){return this.replace(/<\/?[^>]+>/gi,'')},parseQuery:function(encodeKeys,encodeValues){encodeKeys=$pick(encodeKeys,true);encodeValues=$pick(encodeValues,true);var vars=this.split(/[&;]/);var rs={};if(vars.length)vars.each(function(val){var keys=val.split('=');if(keys.length&&keys.length==2){rs[(encodeKeys)?encodeURIComponent(keys[0]):keys[0]]=(encodeValues)?encodeURIComponent(keys[1]):keys[1]}});return rs},tidy:function(){var txt=this.toString();$each({"[\xa0\u2002\u2003\u2009]":" ","\xb7":"*","[\u2018\u2019]":"'","[\u201c\u201d]":'"',"\u2026":"...","\u2013":"-","\u2014":"--","\uFFFD":"&raquo;"},function(value,key){txt=txt.replace(new RegExp(key,'g'),value)});return txt},cleanQueryString:function(method){return this.split("&").filter(method||function(set){return $chk(set.split("=")[1])}).join("&")}});