JS 实现Div向上浮动的实现代码

<div id="newsOne" onmouseover="CleartTimeInterVal();" onmouseout="resetInterVal();" 
style="position: absolute; width: 100px;"> 
<a href="//www.gxlcms.com" target="_blank">脚本之家</a> 
</div> 
<script type='text/javascript'> 
var newsOne = document.getElementById("newsOne"); 
newsOne.style.bottom = 0; 
newsOne.style.left = window.screen.availWidth - 100; 
var bottom = 0; 
function newsScroll() { 
if (bottom > (window.screen.availHeight - window.screenTop)) { 
bottom = 0; 
newsOne.style.bottom = 0; 
} 
else { 
bottom = bottom + 15; 
newsOne.style.bottom = bottom; 
} 
} 
var timeid = setInterval(newsScroll, 300); 
function CleartTimeInterVal() { 
clearInterval(timeid); 
} 
function resetInterVal() { 
timeid = setInterval(newsScroll, 300); 
} 
</script> 
 
在线运行： 
 
 
脚本之家 
 
<script type='text/javascript'> 
var newsOne = document.getElementById("newsOne"); 
newsOne.style.bottom = 0; 
newsOne.style.left = window.screen.availWidth - 100; 
var bottom = 0; 
function newsScroll() { 
if (bottom > (window.screen.availHeight - window.screenTop)) { 
bottom = 0; 
newsOne.style.bottom = 0; 
} 
else { 
bottom = bottom + 15; 
newsOne.style.bottom = bottom; 
} 
} 
var timeid = setInterval(newsScroll, 300); 
function CleartTimeInterVal() { 
clearInterval(timeid); 
} 
function resetInterVal() { 
timeid = setInterval(newsScroll, 300); 
} 
</script> 

  [Ctrl+A 全选 注:如需引入外部Js需刷新才能执行]