借鉴http://bbs.pcbeta.com/

代码

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(function() {
var coreSocialistValues = ["富强", "民主", "文明", "和谐", "自由", "平等", "公正", "法治", "爱国", "敬业", "诚信", "友善"]
, index = Math.floor(Math.random() * coreSocialistValues.length);
document.body.addEventListener('click', function(e) {
if (e.target.tagName == 'A') {
return;
}
var x = e.pageX
, y = e.pageY
, span = document.createElement('span');
span.textContent = coreSocialistValues[index];
index = (index + 1) % coreSocialistValues.length;
span.style.cssText = ['z-index: 9999999; position: absolute; font-weight: bold; color: #ff6651; top: ', y - 20, 'px; left: ', x, 'px;'].join('');
document.body.appendChild(span);
animate(span);
});
function animate(el) {
var i = 0
, top = parseInt(el.style.top)
, id = setInterval(frame, 16.7);
function frame() {
if (i > 180) {
clearInterval(id);
el.parentNode.removeChild(el);
} else {
i += 2;
el.style.top = top - i + 'px';
el.style.opacity = (180 - i) / 180;
}
}
}
}());