function score(num){
		var hint = Array("","很差，简直是恶搞","一般，不妨看一看","不错，值得一看","很好，绝对的佳作","很完美，绝对不容错过");
		for(i=1;i<=5;i++){
			if(i <= num){
				document.getElementById('score'+i).src = "../system_images/score_on.gif";
			}else{
				document.getElementById('score'+i).src = "../system_images/score_off.gif";
			}
		}
		document.getElementById('hint').innerHTML = hint[num];
	}
	
	function score_click(id,num){
		createRequest();
		if(request){
			request.id = id;
			request.num = num;
			request.onreadystatechange = score_updatePage;
			var url = "../common/ajax/score_click.php?id=" + id + "&num=" + num;
			request.open("GET", url, true);
			request.send(null);
		}
	}
	
	function score_updatePage() {
		if (request.readyState == 4) {
			if(request.status == 200){
				var score = request.responseText.replace(/(^\s*)|(\s*$)/g,"");
				if(score){
					document.getElementById('all_score').innerHTML = score;
					var hit = parseInt(document.getElementById('hit').innerHTML);
					document.getElementById('hit').innerHTML = (hit + 1);
					score(parseInt(score),"ok");
				}else{
					alert("嗨，您已经打过分喽，不能再打了哦...");
				}
			}
		}
	}