return w;};Date.prototype.isDST=function(){return this.toString().match(/(E|C|M|P)(S|D)T/)[2]=="D";};Date.prototype.getTimezone=function(){return Date.getTimezoneAbbreviation(this.getUTCOffset,this.isDST());};Date.prototype.setTimezoneOffset=function(s){var here=this.getTimezoneOffset(),there=Number(s)*-6/10;this.addMinutes(there-here);return this;};Date.prototype.setTimezone=function(s){return this.setTimezoneOffset(Date.getTimezoneOffset(s));};Date.prototype.getUTCOffset=function(){var n=this.getTimezoneOffset()*-10/6,r;if(n<0){r=(n-10000).toString();return r[0]+r.substr(2);}else{r=(n+10000).toString();return"+"+r.substr(1);}};Date.prototype.getDayName=function(abbrev){return abbrev?Date.CultureInfo.abbreviatedDayNames[this.getDay()]:Date.CultureInfo.dayNames[this.getDay()];};Date.prototype.getMonthName=function(abbrev){return abbrev?Date.CultureInfo.abbreviatedMonthNames[this.getMonth()]:Date.CultureInfo.monthNames[this.getMonth()];};Date.prototype._toString=Date.prototype.toString;Date.prototype.toString=function(format){var self=this;var p=function p(s){return(s.toString().length==1)?"0"+s:s;};return format?format.replace(/dd?d?d?|MM?M?M?|yy?y?y?|hh?|HH?|mm?|ss?|tt?|zz?z?/g,function(format){switch(format){case"hh":return p(self.getHours()<13?self.getHours():(self.getHours()-12));case"h":return self.getHours()<13?self.getHours():(self.getHours()-12);case"HH":return p(self.getHours());case"H":return self.getHours();case"mm":return p(self.getMinutes());case"m":return self.getMinutes();case"ss":return p(self.getSeconds());case"s":return self.getSeconds();case"yyyy":return self.getFullYear();case"yy":return self.getFullYear().toString().substring(2,4);case"dddd":return self.getDayName();case"ddd":return self.getDayName(true);case"dd":return p(self.getDate());case"d":return self.getDate().toString();case"MMMM":return self.getMonthName();case"MMM":return self.getMonthName(true);case"MM":return p((self.getMonth()+1));case"M":return self.getMonth()+1;case"t":return self.getHours()<12?Date.CultureInfo.amDesignator.substring(0,1):Date.CultureInfo.pmDesignator.substring(0,1);case"tt":return self.getHours()<12?Date.CultureInfo.amDesignator:Date.CultureInfo.pmDesignator;case"zzz":case"zz":case"z":return"";}}):this._toString();};