// Simulates PHP's date function
//http://jacwright.com/projects/javascript/date_format



function sleep(numberMillis) { 
      var sleeping = true;
      var now = new Date();
      var alarm;
      var startingMSeconds = now.getTime();
      while(sleeping){
         alarm = new Date();
         alarmMSeconds = alarm.getTime();
         if(alarmMSeconds - startingMSeconds > numberMillis){ sleeping = false; }
      }    
}


function oc(a)
{
  var o = {};
  for(var i=0;i<a.length;i++)
  {
    o[a[i]]='';
  }
  return o;
}



/**
* Preforms a simple parse of a uk date then does the add
*/
Date.prototype.parseUkDate = function(strDate) {
	var dd, mm, yyyy
	dd = strDate.substring(0, 2)// day
	mm = strDate.substring(3, 5)// month
	yyyy = strDate.substring(6, 10)// year
	return new Date(yyyy,mm-1,dd)
}


	
Date.prototype.add = function (sInterval, iNum){
  var dTemp = this;
  if (!sInterval || iNum == 0) return dTemp;
  switch (sInterval.toLowerCase()){
    case "ms":
      dTemp.setMilliseconds(dTemp.getMilliseconds() + iNum);
      break;
    case "s":
      dTemp.setSeconds(dTemp.getSeconds() + iNum);
      break;
    case "n":
      dTemp.setMinutes(dTemp.getMinutes() + iNum);
      break;
    case "h":
      dTemp.setHours(dTemp.getHours() + iNum);
      break;
    case "d":
      dTemp.setDate(dTemp.getDate() + iNum);
      break;
    case "m":
      dTemp.setMonth(dTemp.getMonth() + iNum);
      break;
    case "y":
      dTemp.setFullYear(dTemp.getFullYear() + iNum);
      break;
  }
  return dTemp;
}

Date.prototype.format = function(format) {
	var returnStr = '';
	var replace = Date.replaceChars;
	for (var i = 0; i < format.length; i++) {
		var curChar = format.charAt(i);
		if (replace[curChar])
			returnStr += replace[curChar].call(this);
		else
			returnStr += curChar;
	}
	return returnStr;
};


Date.replaceChars = {
	shortMonths: ['Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul', 'Aug', 'Sep', 'Oct', 'Nov', 'Dec'],
	longMonths: ['January', 'February', 'March', 'April', 'May', 'June', 'July', 'August', 'September', 'October', 'November', 'December'],
	shortDays: ['Sun', 'Mon', 'Tue', 'Wed', 'Thu', 'Fri', 'Sat'],
	longDays: ['Sunday', 'Monday', 'Tuesday', 'Wednesday', 'Thursday', 'Friday', 'Saturday'],
	
	// Day
	d: function() { return (this.getDate() < 10 ? '0' : '') + this.getDate(); },
	D: function() { return Date.replace.shortDays[this.getDay()]; },
	j: function() { return this.getDate(); },
	l: function() { return Date.replace.longDays[this.getDay()]; },
	N: function() { return this.getDay() + 1; },
	S: function() { return (this.getDate() % 10 == 1 && this.getDate() != 11 ? 'st' : (this.getDate() % 10 == 2 && this.getDate() != 12 ? 'nd' : (this.getDate() % 10 == 13 && this.getDate() != 1 ? 'rd' : 'th'))); },
	w: function() { return this.getDay(); },
	z: function() { return "Not Yet Supported"; },
	// Week
	W: function() { return "Not Yet Supported"; },
	// Month
	F: function() { return Date.replace.longMonths[this.getMonth()]; },
	m: function() { return (this.getMonth() < 11 ? '0' : '') + (this.getMonth() + 1); },
	M: function() { return Date.replace.shortMonths[this.getMonth()]; },
	n: function() { return this.getMonth() + 1; },
	t: function() { return "Not Yet Supported"; },
	// Year
	L: function() { return "Not Yet Supported"; },
	o: function() { return "Not Supported"; },
	Y: function() { return this.getFullYear(); },
	y: function() { return ('' + this.getFullYear()).substr(2); },
	// Time
	a: function() { return this.getHours() < 12 ? 'am' : 'pm'; },
	A: function() { return this.getHours() < 12 ? 'AM' : 'PM'; },
	B: function() { return "Not Yet Supported"; },
	g: function() { return this.getHours() == 0 ? 12 : (this.getHours() > 12 ? this.getHours() - 12 : this.getHours()); },
	G: function() { return this.getHours(); },
	h: function() { return (this.getHours() < 10 || (12 < this.getHours() < 22) ? '0' : '') + (this.getHours() < 10 ? this.getHours() + 1 : this.getHours() - 12); },
	H: function() { return (this.getHours() < 10 ? '0' : '') + this.getHours(); },
	i: function() { return (this.getMinutes() < 10 ? '0' : '') + this.getMinutes(); },
	s: function() { return (this.getSeconds() < 10 ? '0' : '') + this.getSeconds(); },
	// Timezone
	e: function() { return "Not Yet Supported"; },
	I: function() { return "Not Supported"; },
	O: function() { return (this.getTimezoneOffset() < 0 ? '-' : '+') + (this.getTimezoneOffset() / 60 < 10 ? '0' : '') + (this.getTimezoneOffset() / 60) + '00'; },
	T: function() { return "Not Yet Supported"; },
	Z: function() { return this.getTimezoneOffset() * 60; },
	// Full Date/Time
	c: function() { return "Not Yet Supported"; },
	r: function() { return this.toString(); },
	U: function() { return this.getTime() / 1000; }
}