js仿土豆视频滚动菜单- Javascript - 软晨网（RuanChen.com）

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Javascript 中的 js仿土豆视频滚动菜单

出处:互联网 整理: 软晨网（RuanChen.com） 发布: 2009-09-12 浏览: 225 ::

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用javascript获取textarea中的光标位置 javascript 代码简单的管理菜单

比较漂亮的仿土豆视频导航菜单，漂亮大方

点击运行可以看到效果:

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312" />
<title>软晨学习网 www.ruanchen.com 仿土豆视频滚动菜单</title>
<style>
ul{margin:0;padding:0;list-style:none;width:100000px}
li{margin:0;padding:0;width:100px;height:100px;display:block;float:left;margin-right:5px;background:#009900}
#img_bag{width:640px;height:100px;background:#FF9900;margin:0 auto;}
#img_bag a{float:left;width:20px;display:block;height:20px;font-weight:bold;}
#img_bag #img{width:600px;height:100px;background:#ccc;overflow:hidden;float:left}
#scrollBar{width:600px;height:20px;background:#FF0000;margin:0 auto;position:relative}
#scroll{width:30px;height:20px;background:#000;cursor:pointer;position:absolute;}
</style>
</head>
<body>
<div id="img_bag">
<a href="javascript:void(0)" onmousedown="moveLeft()"><<</a>
<div id="img">
<ul>
<li></li>
<li></li>
<li></li>
<li></li>
<li></li>
<li></li>
<li></li>
<li></li>
<li></li>
<li></li>
<li></li>
<li></li>
</ul>
</div>
<a href="javascript:void(0)" onmousedown="moveRight()">>></a>
</div>
<div style="clear:both;"></div>
<div id="scrollBar">
<div id="scroll" style="left:0"></div>
</div>
<script>
function $(obj){return document.getElementById(obj)}
var maxWidth=$("img").getElementsByTagName("ul")[0].getElementsByTagName("li").length*105;
var isScroll=false;
var modiLeft;
$("scroll").onmousedown=function(evt){
isScroll=true;
evt=(evt)?evt:((window.event)?window.event:null);
if(evt.offsetX){
modiLeft=parseInt(evt.offsetX)
}
else{modiLeft=parseInt(evt.layerX)}
}
document.onmouseup=function(){
isScroll=false;
}
document.onmousemove=function(evt){
evt=(evt)?evt:((window.event)?window.event:null);
if(evt&&isScroll){
$("scroll").style.left=parseInt(evt.clientX)-parseInt($("scrollBar").offsetLeft)-modiLeft+"px";
if(parseInt($("scroll").style.left)<0){$("scroll").style.left=0+"px"}
if(parseInt($("scroll").style.left)>570){$("scroll").style.left=570+"px"}
$("img").scrollLeft=parseInt($("scroll").style.left)*((maxWidth-600)/570); }
}
var targetx = 200;//一次滚动距离
var dx;
var a=null;
function moveLeft(){
var le=parseInt($("img").scrollLeft);
if(le>200){
targetx=parseInt($("img").scrollLeft)-200;
}
else{targetx=parseInt($("img").scrollLeft)-le-1}
scLeft();
}
function scLeft(){
dx=parseInt($("img").scrollLeft)-targetx;
$("img").scrollLeft-=dx*.3;
$("scroll").style.left=parseInt($("img").scrollLeft)*(570/(maxWidth-600))+"px";
if(parseInt($("scroll").style.left)<0){$("scroll").style.left=0+"px"}
if(parseInt($("scroll").style.left)>570){$("scroll").style.left=570+"px"}
clearScroll=setTimeout(scLeft,50);
if(dx*.3<1){clearTimeout(clearScroll)}
}
function moveRight(){
var le=parseInt($("img").scrollLeft)+200;
var maxL=maxWidth-600;
if(le<maxL){
targetx=parseInt($("img").scrollLeft)+200;
}
else{targetx=maxL}
scRight();
}
function scRight(){
dx=targetx-parseInt($("img").scrollLeft);
$("img").scrollLeft+=dx*.3;
$("scroll").style.left=parseInt($("img").scrollLeft)*(573/(maxWidth-600))+"px";
if(parseInt($("scroll").style.left)<0){$("scroll").style.left=0+"px"}
if(parseInt($("scroll").style.left)>=570){$("scroll").style.left=570+"px"}
a=setTimeout(scRight,50);
if(dx*.3<1){clearTimeout(a)}
}
</script>
</body>
</html>

[Ctrl+A 全选提示:你可先修改部分代码,再按运行]

用javascript获取textarea中的光标位置 javascript 代码简单的管理菜单

Javascript 中的 js仿土豆视频滚动菜单

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