一:选中复选框按钮可用    和     倒计时10秒后按钮可用

这是倒计时10秒后按钮可用

<!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=utf-8" />
<title>无标题文档</title>
</head> <body>
<div>
<span id="daojishi">10</span>
<input disabled="disabled" type="button" value="注册" id="anniu" />
</div> </body> <script type="text/javascript">
var id;
id=window.setInterval("daojishi()",1000);
function daojishi()
{
//找到span
var anniu=document.getElementById("anniu");
var s = document.getElementById("daojishi");
var t=s.innerText;
t=t-1;
if(t<=0)
{
window.clearInterval(id);
anniu.removeAttribute("disabled");
} s.innerText=t;
} </script> </html>

选中复选框按钮可用!

<!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=utf-8" />
<title>无标题文档</title>
</head> <body>
<input type="button" value="按钮" disabled="disabled" id="anniu" />
<input type="checkbox" onclick="xuanzhong()" id="ck"/>
</body>
<script type="text/javascript">
function xuanzhong()
{
var anniu=document.getElementById("anniu");
var ck=document.getElementById("ck");
if(ck.checked)
{
anniu.removeAttribute("disabled");
}
else
{
anniu.setAttribute("disabled","disabled");
}
} </script>
</html>

3.下拉菜单(最简单的)

<!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=utf-8" />
<title>无标题文档</title>
</head>
<style type="text/css">
.list{ width:150px; height:50px; list-style:none; text-align:center; line-height:50px; vertical-align:middle;}
.list1{ width:150px; height:50px; list-style:none; text-align:center; line-height:50px; vertical-align:middle;}
.list2{ width:150px; height:50px; list-style:none; text-align:center; line-height:50px; vertical-align:middle;}
.list3{ width:150px; height:50px; list-style:none; text-align:center; line-height:50px; vertical-align:middle;}
.list4{ width:150px; height:50px; list-style:none; text-align:center; line-height:50px; vertical-align:middle;}
</style>
<body>
<div style="width:150px; height:1000px;">
<ul>
<li class="list" style=" background-color:#F00" onclick="dianji('yi')">文件</li>
<div id="yi" style="width:150px; height:200px; display:none">
<ul>
<li class="list1">文件</li>
<li class="list1">编辑</li>
<li class="list1">格式</li>
<li class="list1">命令</li>
</ul>
</div>
<li class="list" style=" background-color:#0F0" onclick="dianji('er')">编辑</li>
<div id="er" style="width:150px; height:200px; display:none">
<ul>
<li class="list2">文件</li>
<li class="list2">编辑</li>
<li class="list2">格式</li>
<li class="list2">命令</li>
</ul>
</div>
<li class="list" style=" background-color:#00F" onclick="dianji('sa')">格式</li>
<div id="sa" style="width:150px; height:200px; display:none">
<ul>
<li class="list3">文件</li>
<li class="list3">编辑</li>
<li class="list3">格式</li>
<li class="list3">命令</li>
</ul>
</div>
<li class="list" style=" background-color:#FF0" onclick="dianji('si')">命令</li>
<div id="si" style="width:150px; height:200px; display:none">
<ul>
<li class="list4">文件</li>
<li class="list4">编辑</li>
<li class="list4">格式</li>
<li class="list4">命令</li>
</ul>
</div>
</ul>
</div>
</body>
<script type="text/javascript">
function dianji(a)
{
var a=document.getElementById(a);
if(a.style.display=="none")
{
a.style.display="block";
}
else
{
a.style.display="none";
}
}
</script>
</html>

4.下拉列表

<!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=utf-8" />
<title>无标题文档</title>
</head>
<style type="text/css">
*{ margin:0px auto; padding:0px;}
.list{ width:100px; height:50px; text-align:center; line-height:50px; vertical-align:middle; float:left; list-style:none;}
.ys{ width:100px; height:100px; float:left; margin-top:50px; margin-left:-100px;}
</style>
<body>
<<br /><<br />
<div style="width:400px; height:50px;">
<ul>
<li class="list" style="background-color:#F00" onmouseover="yishang('yi')" onmouseout="yichu('yi')">文件</li>
<div id="yi" class="ys" style="background-color:#F00;display:none"></div>
<li class="list" style="background-color:#0F0" onmouseover="yishang('er')" onmouseout="yichu('er')">编辑</li>
<div id="er" class="ys" style="background-color:#0F0;display:none"></div>
<li class="list" style="background-color:#00F" onmouseover="yishang('sa')" onmouseout="yichu('sa')">命令</li>
<div id="sa" class="ys" style="background-color:#00F;display:none"></div>
<li class="list" style="background-color:#FF0" onmouseover="yishang('si')" onmouseout="yichu('si')">帮助</li>
<div id="si" class="ys" style="background-color:#FF0;display:none"></div>
</ul>
</div>
</body>
<script type="text/javascript">
function yishang(a)
{
var a=document.getElementById(a);
if(a.style.display=="none")
{
a.style.display="block";
}
}
function yichu(a)
{
var a=document.getElementById(a); a.style.display="none"; }
</script>
</html>

5.下拉列表

<!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=utf-8" />
<title>无标题文档</title>
</head>
<style type="text/css">
*{ margin:0px auto; padding:0px;}
#yi{ width:200px; height:50px; border:1px solid #333; text-align:center; line-height:50px; vertical-align:middle;}
#yi:hover{ cursor:pointer}
.list{ width:200px; height:50px; border:1px solid #333; text-align:center; line-height:50px; vertical-align:middle; border-top:none;}
.list:hover{ cursor:pointer;}
</style>
<body>
<<br /><<br />
<div id="yi" onclick="dianji()">选项</div>
<div id="er" style="display:none">
<div class="list" onclick="xuan(this)">山东</div>
<div class="list" onclick="xuan(this)">河北</div>
<div class="list" onclick="xuan(this)">山西</div>
</div>
</body>
<script type="text/javascript">
function dianji()
{
var a=document.getElementById("er");
if(a.style.display=="none")
{
a.style.display="block";
}
else
{
a.style.display="none";
}
}
function xuan(a)
{
var yi=document.getElementById("yi");
var b=document.getElementById("er");
yi.innerHTML=a.innerHTML;
b.style.display="none";
}
</script>
</html>

6.进度条

<!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=utf-8" />
<title>无标题文档</title>
</head>
<style type="text/css">
*{ margin:0px auto; padding:0px;}
#yi{ width:1000px; height:10px; border:1px solid #999; border-radius:5px;}
</style>
<body>
<br /><<br />
<div id="yi">
<div id="er" style="width:0px; height:10px; background-color:#F00; float:left"></div>
</div>
</body>
<script type="text/javascript">
var id;
id=window.setInterval("jindu()",10);
function jindu()
{
var a=document.getElementById("er");
var k=a.style.width;
k=parseInt(k.substr(0,k.length-2))+2;
a.style.width=k+"px";
if(k>=1000)
{
window.clearInterval(id);
}
}
</script>
</html>

7.滚动条事件

<!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=utf-8" />
<title>无标题文档</title>
</head>
<style type="text/css">
*{ margin:0px auto; padding:0px;} </style>
<body>
<div id="yi" style="width:100%; height:30px; background-color:#F00"></div>
<div id="er" style="width:100%; height:60px; background-color:#000"></div>
<div id="sa" style="width:100%; height:800px; background-color:#009"></div>
</body>
<script type="text/javascript">
window.onscroll=function ()
{
var a=document.getElementById("er");
if(window.scrollY>=30)
{
a.style.position="fixed";
a.style.top="0px";
}
else
{
a.style.position="relative";
}
}
</script>
</html>

8.滑动

<!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=utf-8" />
<title>无标题文档</title>
</head>
<style type="text/css"> </style>
<body> <div id="yi" style="width:100px; height:300px; background-color:#F00; float:left"></div>
<div id="er" style="width:1000px; height:300px; background-color:#000; float:left;"> </div>
<div id="sa" style=" width:50px; height:50px; background-color:#CCC; position:relative; top:125px; left:75px; cursor:pointer;" onclick="dianji()"></div>
</body>
<script type="text/javascript">
var id;
function dianji()
{
id=window.setInterval("dong()",10);
} function dong()
{
var a=document.getElementById("yi");
var h=a.style.width;
h=parseInt(h.substr(0,h.length-2))+2;
            if(h>=1100)
{
window.clearInterval(id);
          return;
}
            a.style.width=h+"px";

            var b=document.getElementById("er");
var he=b.style.width;
he=parseInt(he.substr(0,he.length-2))-2;
b.style.width=he+"px"; var c=document.getElementById("sa");
var xiao=c.style.left;
xiao=parseInt(xiao.substr(0,xiao.length-2))+2;
c.style.left=xiao+"px";
}
</script>
</html>

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