var NUMBER_OF_STARS = 5;
var status;

var On = './themes/Basic/stars/rating_on.png';
var Off = './themes/Basic/stars/rating_off.png';
var Half = './themes/Basic/stars/rating_half.png';
var Hover = './themes/Basic/stars/rating_over.png';

function init_rating() {
    var ratings = $$('span');
	
	
// doesn't work: ratings.cleanWhitespace();
	ratings.each(function(i) {
		
		if (i.className	!= 'rating') return
		
		// innerHTML was a convenience property introduced by Microsoft as a means of reading and writing the HTML content of an element
		// a) innerHTML is at least 200% slower on all 6 browsers tested (Firefox, Netscape 6+, Internet Explorer 6+, Opera 7+, Safari 2, Seamonkey 1) than modifying the nodeValue and
		// b) innerHTML is NOT a World Wide Web Consortium web standard DOM 1 attribute.
		var rating = i.firstChild.nodeValue;

		i.removeChild(i.firstChild);
//		i.remove DOESN'T wORK ???!!!
		
		if (rating > NUMBER_OF_STARS || rating < 0) return
		$R(1,NUMBER_OF_STARS).each(function(j) {
			var star = new Element('img');

			if (rating >= 1) {
                star.setAttribute('src', On);
                star.className = 'on';
                rating--;
	        } else if(rating == 0.5) {
                star.setAttribute('src', Half);
                star.className = 'half';
                rating = 0;
			} else {
				star.className = 'off';
				star.setAttribute('src', Off );
            }
            var widgetId = i.identify().substr(7);
            star.writeAttribute('id', 'star_'+widgetId+'_'+j);
            star.writeAttribute('title', j+' étoile(s)');
			
            star.onmouseover = new Function("evt", "displayHover("+widgetId+", "+j+");");
            star.onmouseout = new Function("evt", "displayNormal("+widgetId+", "+j+");");	
			i.appendChild(star);
		});

    });
	
    $$('.rating').each(function(n){
		n.immediateDescendants().each(function(c){
			Event.observe(c, 'click', submitRating);
		});
	});
}


function displayHover(ratingId, star) {
	$R(1,star).each(function(i) {
		$('star_'+ratingId+'_'+i).setAttribute('src', Hover);
	});
}


function displayNormal(ratingId, star) {
	$R(1,star).each(function(i) {	
		status = $('star_'+ratingId+'_'+i).className;
		$('star_'+ratingId+'_'+i).setAttribute('src', './themes/Basic/stars/rating_'+status+'.png');
	});
}