var stars;
var comments = new Array("Kötü", "Eh işte", "Fena değil", "Güzel", "Mükemmel");
var rated = false; // false açık, true kapalı

function showStars(star) {
	if (rated) return;
	stars = new Array(5);
	for (var i = 0; i != 5; i++)
		stars[i] = document.getElementById("star" + i).src;
	var rating = parseInt(star.id.charAt(4));
	for (var i = 0; i <= rating; i++)
		document.getElementById("star" + i).src = 'images/yildiz_.gif';
   for (var i = rating + 1; i < 5; i++)
      document.getElementById("star" + i).src = 'images/yildiz0.gif';
   var cmt = document.getElementById("ratingComment");
   cmt.innerHTML = comments[rating];
   cmt.parentNode.align = "left";
}


function clearStars() {
	if (rated) return;
	for (var i = 0; i != 5; i++)
		document.getElementById("star" + i).src = stars[i];
   var cmt = document.getElementById("ratingComment");
   cmt.innerHTML = "Lütfen puan verin:";
   cmt.parentNode.align = "left";
}

function rate(ids, o, p, r) {
	if (rated) return;
	rated = true;
	var xmlHttp = getHttpRequest();
	if (xmlHttp == null) return;

   xmlHttp.onreadystatechange = function() {
		if (xmlHttp.readyState == 4) {
			document.getElementById("ratingComment").innerHTML = xmlHttp.responseText;
			for (var i = 0; i != 5; i++)
				document.getElementById("star" + i).className = "";
		}
	}

   var param = 'ids=' + encodeURIComponent(ids);
    param += '&o=' + encodeURIComponent(o);
	param += '&p=' + encodeURIComponent(p);
	param += '&r=' + encodeURIComponent(r);

	xmlHttp.open('POST', 'rate.php', true);
	xmlHttp.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded');
	xmlHttp.send(param);
}


function getHttpRequest() {
	var xmlHttp = null;
	try {
		xmlHttp = new XMLHttpRequest();
	} catch (e) {
		var progIds = ['Microsoft.XMLHTTP', 'MSXML2.XMLHTTP', 'MSXML2.XMLHTTP.5.0', 'MSXML2.XMLHTTP.4.0', 'MSXML2.XMLHTTP.3.0']
		var success = false;
		for (var iterator = 0; (iterator < progIds.length) && ( ! success); iterator ++) {
			try {
				xmlHttp = new ActiveXObject(progIds[iterator]);
				success = true;
			} catch (e) {
			}
		}
		if (! success) {
			return null;
		}
	}
	return xmlHttp;
}