return-1;};Date.isLeapYear=function(year){return(((year%4===0)&&(year%100!==0))||(year%400===0));};Date.getDaysInMonth=function(year,month){return[31,(Date.isLeapYear(year)?29:28),31,30,31,30,31,31,30,31,30,31][month];};Date.getTimezoneOffset=function(s,dst){return(dst||false)?Date.CultureInfo.abbreviatedTimeZoneDST[s.toUpperCase()]:Date.CultureInfo.abbreviatedTimeZoneStandard[s.toUpperCase()];};Date.getTimezoneAbbreviation=function(offset,dst){var n=(dst||false)?Date.CultureInfo.abbreviatedTimeZoneDST:Date.CultureInfo.abbreviatedTimeZoneStandard,p;for(p in n){if(n[p]===offset){return p;}}
return null;};Date.prototype.clone=function(){return new Date(this.getTime());};Date.prototype.compareTo=function(date){if(isNaN(this)){throw new Error(this);}
return this;};Date._validate=function(value,min,max,name){if(typeof value!="number"){throw new TypeError(value+" is not a Number.");}else if(value<min||value>max){throw new RangeError(value+" is not a valid value for "+name+".");}
var daynum=((Date.UTC(y,m,d,0,0,0)-Date.UTC(y,0,1,0,0,0))/86400000)+1;var w=Math.floor((daynum-offset+7)/7);if(w===dow){y--;var prevOffset=7+1-new Date(y,0,1).getDay();if(prevOffset==2||prevOffset==8){w=53;}else{w=52;}}
Date.now=function(){return new Date();};Date.today=function(){return Date.now().clearTime();};Date.prototype._orient=+1;Date.prototype.next=function(){this._orient=+1;return this;};Date.prototype.last=Date.prototype.prev=Date.prototype.previous=function(){this._orient=-1;return this;};Date.prototype._is=false;Date.prototype.is=function(){this._is=true;return this;};Number.prototype._dateElement="day";Number.prototype.fromNow=function(){var c={};c[this._dateElement]=this;return Date.now().add(c);};Number.prototype.ago=function(){var c={};c[this._dateElement]=this*-1;return Date.now().add(c);};(function(){var $D=Date.prototype,$N=Number.prototype;var dx=("sunday monday tuesday wednesday thursday friday saturday").split(/\s/),mx=("january february march april may june july august september october november december").split(/\s/),px=("Millisecond Second Minute Hour Day Week Month Year").split(/\s/),de;var df=function(n){return function(){if(this._is){this._is=false;return this.getDay()==n;}
this.hour=(this.meridian=="p"&&this.hour<13)?this.hour+12:this.hour;if(this.day>Date.getDaysInMonth(this.year,this.month)){throw new RangeError(this.day+" is not a valid value for days.");}
var r=new Date(this.year,this.month,this.day,this.hour,this.minute,this.second);if(this.timezone){r.set({timezone:this.timezone});}else if(this.timezoneOffset){r.set({timezoneOffset:this.timezoneOffset});}
var today=Date.today();var method=null;var expression=!!(this.days!=null||this.orient||this.operator);if(expression){var gap,mod,orient;orient=((this.orient=="past"||this.operator=="subtract")?-1:1);if(this.weekday){this.unit="day";gap=(Date.getDayNumberFromName(this.weekday)-today.getDay());mod=7;this.days=gap?((gap+(orient*mod))%mod):(orient*mod);}