/*
_________________________________________________________________________________________________
    
pz.modifyDatetime
version 0.02
_________________________________________________________________________________________________
  
*/

jQuery.fn.modifyDatetime = function(showDate, showTime, i18n)
{

	return this.each(
		function()
		{
			
			var _this = jQuery(this);
			
			if(!_this.hasClass("pz-modifyDatetime-complete")){

				var _datetime = _this.text() || '';
				var _datetimeUpdated = '';
				var _showDate = (showDate==undefined) ? true : showDate;
				var _showTime = (showTime==undefined) ? true : showTime;
				var _i18n = (i18n==undefined) ? 'de' : i18n;
				var _separator = ' - ';
				
				/*
				calculate locale time
				 */
				if(_datetime != '') {
					var _currentdate = new Date();
//					_datetime = Date.parse(_datetime) - _(currentdate.getTimezoneOffset()*60);
					_datetime = Date.parse(_datetime) ;
				}
				
				/*
				format _datetime (utc) to _datetimeUpdated (whatever)
				*/
				_datetimeUpdated = ''
				_datetimeUpdated += _showDate ? dateFormat(_datetime, _i18n + "mediumDate") : '';
				_datetimeUpdated += (_showDate && _showTime) ? _separator : '';
				_datetimeUpdated += _showTime ? dateFormat(_datetime, _i18n + "shortTime") : '';
				
										//--reset for layout : )
										//_datetimeUpdated = _datetime;
				
				/*
				include _datetimeUpdated
				*/
				_this.text(_datetimeUpdated);
				
				/*
				modify visibility
				*/
				//_this.css("display","inline"); // not needed
				_this.show();
				
				/*
				complete
				*/
				_this.addClass("pz-modifyDatetime-complete");
			
			}

		}
		
	)

};


/*
 * Date Format 1.2.2
 * (c) 2007-2008 Steven Levithan <stevenlevithan.com>
 * MIT license
 * Includes enhancements by Scott Trenda <scott.trenda.net> and Kris Kowal <cixar.com/~kris.kowal/>
 *
 * Accepts a date, a mask, or a date and a mask.
 * Returns a formatted version of the given date.
 * The date defaults to the current date/time.
 * The mask defaults to dateFormat.masks.default.
 */
var dateFormat = function () {
	var	token = /d{1,4}|m{1,4}|yy(?:yy)?|([HhMsTt])\1?|[LloSZ]|"[^"]*"|'[^']*'/g,
		timezone = /\b(?:[PMCEA][SDP]T|(?:Pacific|Mountain|Central|Eastern|Atlantic) (?:Standard|Daylight|Prevailing) Time|(?:GMT|UTC)(?:[-+]\d{4})?)\b/g,
		timezoneClip = /[^-+\dA-Z]/g,
		pad = function (val, len) {
			val = String(val);
			len = len || 2;
			while (val.length < len) val = "0" + val;
			return val;
		};

	// Regexes and supporting functions are cached through closure
	return function (date, mask, utc) {
		var dF 		= dateFormat;

		// You can't provide utc if you skip other args (use the "UTC:" mask prefix)
		if (arguments.length == 1 && (typeof date == "string" || date instanceof String) && !/\d/.test(date)) {
			mask = date;
			date = undefined;
		}
		
		// Passing date through Date applies Date.parse, if necessary
		date = date ? new Date(date) : new Date();
		if (isNaN(date)) throw new SyntaxError("invalid date");

		mask = String(dF.masks[mask] || mask || dF.masks["default"]);

		// Allow setting the utc argument via the mask
		if (mask.slice(0, 4) == "UTC:") {
			mask = mask.slice(4);
			utc = true;
		}

		var	_ = utc ? "getUTC" : "get",
			d = date[_ + "Date"](),
			D = date[_ + "Day"](),
			m = date[_ + "Month"](),
			y = date[_ + "FullYear"](),
			H = date[_ + "Hours"](),
			M = date[_ + "Minutes"](),
			s = date[_ + "Seconds"](),
			L = date[_ + "Milliseconds"](),
			o = utc ? 0 : date.getTimezoneOffset(),
			flags = {
				d:    	 d,
				mmm:     dF.i18n.enmonthNames[m],
				mmmm:    dF.i18n.demonthNames[m],
				yyyy: 	 y,
				h:    	 H % 12 || 0,
				H:       H,
				MM:   	 pad(M),
				t:       "h",
				tt:      ((H < 12)) ? "am" : "pm",
				T:    	 "Uhr",
				TT:   	 ((H < 12)) ? "AM" : "PM"
			};

		return mask.replace(token, function ($0) {
			return $0 in flags ? flags[$0] : $0.slice(1, $0.length - 1);
		});
	};
}();

// Some common format strings
dateFormat.masks = {
	"default":      "mmm d, yyyy - h:MM tt",
	enmediumDate:   "mmm d, yyyy",
	demediumDate:   "d. mmmm yyyy",
	enshortTime:    "h:MM tt",
	deshortTime:    "H:MM T"
};

// Internationalization strings
dateFormat.i18n = {
	enmonthNames: [
		"Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec",
		"January", "February", "March", "April", "May", "June", "July", "August", "September", "October", "November", "December"
	],
	demonthNames: [
		"Jan", "Feb", "M" + unescape("%E4") + "rz", "April", "Mai", "Juni", "Juli", "Aug", "Sept", "Okt", "Nov", "Dez",
		"Januar", "Februar", "M" + unescape("%E4") + "rz", "April", "Mai", "Juni", "Juli", "August", "September", "Oktober", "November", "Dezember"
	]
	
	
};

// For convenience...
Date.prototype.format = function (mask, utc) {
	return dateFormat(this, mask, utc);
};