(function($){

    var NumberLetterArr = ["Z","y","X","w","V","u","T","s","R","q","P","o","N","m","L","k","J","i","H","g","F","e","D","c","B","a"];
    
    $.NumberToLetters = function(numbers){
    	var num = numbers + "";
		var letterstream = "";
		for(var i=0; i< numbers.length; i++)
		{
			letterstream += NumberLetterArr[num.charAt(i)];	
		}
		return letterstream;
		
	}
	
	$.LettersToNumbers = function(letters){
    	
    	
		var numberstream = "";
		var letterarr = letters.split("");
		for(var i=0; i < letterarr.length; i++)
		{
			var ind = NumberLetterArr.indexOf(letterarr[i]);
			if(ind) numberstream += ind;
			
		}
		return numberstream;
		
	}
})(jQuery);