CoffeeScript

اريد تحويل كود بيور جافاسكريبت الي كود كوفي سكريبت

function Carousel(containerID) {
	this.container = document.getElementById(containerID) || document.body;
	this.slides = this.container.querySelectorAll(\'.carousel\');
	this.total = this.slides.length - 1;
	this.current = 0;
	
	// start on slide 1
	this.slide(this.current);
}
// NEXT
Carousel.prototype.next = function (interval) {
	(this.current === this.total) ? this.current = 0 : this.current += 1;
	
	this.stop();	
	this.slide(this.current);
	
	if(typeof interval === \'number\' && (interval % 1) === 0) {
		var context = this;
		this.run = setTimeout(function() {
			context.next(interval);
		}, interval);
	}
};
// PREVIOUS
Carousel.prototype.prev = function (interval) {	
	(this.current === 0) ? this.current = this.total : this.current -= 1;
		
	this.stop();	
	this.slide(this.current);
	
	if(typeof interval === \'number\' && (interval % 1) === 0) {
		var context = this;
		this.run = setTimeout(function() {
			context.prev(interval);
		}, interval);
	}
};
// STOP PLAYING
Carousel.prototype.stop = function () {
	clearTimeout(this.run);
};
// SELECT SLIDE
Carousel.prototype.slide = function (index) {	
	if (index >= 0 && index  this.total) { 
		this.stop();
		for (var s = 0; s  this.total; s++) {
			if (s === index) {
				this.slides[s].style.display = \"inline-block\"; 
			} else {
				this.slides[s].style.display = \'none\';
			}
		}
	} else {
		alert(\"Index \" + index + \" doesn\'t exist. Available : 0 - \" + this.total);
	}
};