(function ( $ ) {
	$.fn.DateChoose = function ( options ) {
		$this = this;
		$this.hide();
		
		var opts = $.extend( {}, {
			startDate: 1920,
			endDate: new Date().getFullYear(),
			className: 'date_of_birth',
			insertAfter: $this,
			id_prefix: "",
			field_ids: ['dob-day', 'dob-month', 'dob-year'],
			value: "",
			onSelect: function () {}
		}, options);
	
		var _days = new Array();
		for (i=1; i<=31; i++) {
			_days.push([i.toString(), i.toString()]);
		}
		
		var _years = new Array();
		for (i=opts.endDate; i>=opts.startDate; i--) {
			_years.push([i.toString(), i.toString()]);
		}

		defaults = new Array();
		defaults["dob-year"] = parseInt(opts.value.split("-")[0]);
		defaults["dob-month"] = parseInt(opts.value.split("-")[1]);
		defaults["dob-day"] = parseInt(opts.value.split("-")[2]);
		
		_daySelect = $.fn.DateChoose.putAsSelect( _days, opts.id_prefix + opts.field_ids[0], "dob-day", "Day" );
		_monthSelect = $.fn.DateChoose.putAsSelect( $.fn.DateChoose._months, opts.id_prefix + opts.field_ids[1], "dob-month", "Month" );
		_yearSelect = $.fn.DateChoose.putAsSelect( _years, opts.id_prefix + opts.field_ids[2], "dob-year", "Year" );
		
		$( _daySelect ).find('select').change(function () { $.fn.DateChoose.validate($this); opts.onSelect(); });
		$( _monthSelect ).find('select').change(function () { $.fn.DateChoose.validate($this); opts.onSelect(); });
		$( _yearSelect ).find('select').change(function () { $.fn.DateChoose.validate($this); opts.onSelect(); });
		
		var _obj = $( '<div class="'+opts.className+'"></div>' );
		
		opts.insertAfter.after( _obj );
		
		_obj.append( _daySelect );
		_obj.append( _monthSelect );
		_obj.append( _yearSelect );
		
		return $this;
	};
	
	$.fn.DateChoose._months = [
		[1, "January"], [2, "February"], [3, "March"], [4, "April"], [5, "May"], [6, "June"], [7, "July"],
		[8, "August"], [9, "September"], [10, "October"], [11, "November"], [12, "December"]
	];
	
	$.fn.DateChoose.putAsSelect = function ( _data, _id, _class, _head ) {
		var _string = "";
		
		var containerEl = $('<div>');
		containerEl.attr('class', 'register-box-group');
		containerEl.append('<label class="form_label" for="'+_id+'">'+_head+'</label>');

		var newEl = $('<select>');
		newEl.attr('class', _class);
		newEl.attr('id', _id);
		selectContents = '<option value=""></option>';
		
		for (j=0; j<_data.length; j++) {
			selectContents += '<option value="'+_data[j][0]+'"'+(defaults[_class]==_data[j][0] ? "selected": "")+'>'+_data[j][1]+'</option>';
		}

		newEl.html(selectContents);
		containerEl.append(newEl);

		return containerEl;
	};
	
	$.fn.DateChoose.validate = function ( el ) {
		var _values = {
			day: ($(_daySelect).find('select').val().length==1) ? "0"+ $(_daySelect).find('select').val() : $(_daySelect).find('select').val(),
			month:($(_monthSelect).find('select').val().length==1)?"0"+$(_monthSelect).find('select').val():$(_monthSelect).find('select').val(),
			year: ($(_yearSelect).find('select').val().length==1) ? "0"+$(_yearSelect).find('select').val() :$(_yearSelect).find('select').val()
		};
	
		$(el).val( _values.year + "-" + _values.month + "-" + _values.day );
	}
	
}( jQuery ));