简明现代魔法 -> JavaScript -> JavaScript五星评分制作

JavaScript五星评分制作

2010-07-07

在很多地方都可以看到的五星评分设计,五星评分有很多好处,比如可以收集到用户对内容的评价,让用户参与进来,这是Web2.0的一个重要特征。

程序演示

这篇文章写得如何?

这个效果主要体现在CSS和javascript的配合上。

JavaScript Code

<script>
var TB = function() {
	var T$ = function(id) { return document.getElementById(id) }
	var T$$ = function(r, t) { return (r || document).getElementsByTagName(t) }
	var Stars = function(cid, rid, hid, config) {
			var lis = T$$(T$(cid), 'li'), curA;
			for (var i = 0, len = lis.length; i < len; i++) {
				lis[i]._val = i;
				lis[i].onclick = function() {
					T$(rid).innerHTML = '<em>' + (T$(hid).value = T$$(this, 'a')[0].getAttribute('star:value')) + '分</em> - ' + config.info[this._val];
					curA = T$$(T$(cid), 'a')[T$(hid).value / config.step - 1];
				};
				lis[i].onmouseout = function() {
					curA && (curA.className += config.curcss);
				}
				lis[i].onmouseover = function() {
					curA && (curA.className = curA.className.replace(config.curcss, ''));
				}
			} 
	};
	return {Stars: Stars}
}().Stars('stars2', 'stars2-tips', 'stars2-input', {
			'info' : ['写得极差', '写得不怎么好', '写得一般吧', '写得不错', '写得非常好'],
			'curcss': ' current-rating',
			'step': 20
		});
</script>

CSS Code

ul, li {margin: 0; padding: 0; border: 0;}
.shop-rating { height: 25px; overflow: hidden; zoom: 1; padding: 2px 0; position: relative; z-index: 999; font:12px Arial; color:#000; line-height:1.2em; }
.shop-rating span { height: 23px; display: block; line-height: 23px; float: left; }
.shop-rating span.title { width: 125px; text-align: right; margin-right: 5px; }
.shop-rating ul { float: left; }
.shop-rating .result { margin-left: 20px; padding-top: 2px; }
.shop-rating .result span { color: #ff6d02; }
.rating-level,
.rating-level a { background: url(../images/o_star.png) no-repeat scroll 1000px 1000px;}
.rating-level { background-position: 0px 0px; width: 120px; height: 23px; position: relative; z-index: 1000; }
.shop-rating .result em { color: #f60; font-family: arial; font-weight: bold; }
.rating-level li { display: inline; }
.rating-level a { line-height: 23px; height: 23px; position: absolute; top: 0px; left: 0px; text-indent: -999em; *zoom: 1; outline: none; }
.rating-level a.one-star { width: 20%; z-index: 6; }
.rating-level a.two-stars { width: 40%; z-index: 5; }
.rating-level a.three-stars { width: 60%; z-index: 4; }
.rating-level a.four-stars { width: 80%; z-index: 3; }
.rating-level a.five-stars { width: 100%; z-index: 2; }
.rating-level .current-rating, .rating-level a:hover {background-position:0 -28px}
.rating-level a.one-star:hover,.rating-level a.two-stars:hover,.rating-level a.one-star.current-rating,.rating-level a.two-stars.current-rating{background-position:0 -116px;}
.rating-level .three-stars .current-rating,.rating-level .four-stars .current-rating,.rating-level .five-stars .current-rating{background-position:0 -28px;}
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