本节继续介绍在html页面中js的运用。
(1)数码时钟:(http://files.cnblogs.com/files/MenAngel/text05.zip)
<!DOCTYPE html>
<html>
<head lang="en">
<title>示例10.1</title>
<script>
function tostr(value){
if(value<10)
return "0"+value;
else
return ""+value; }
window.onload=function(){
var adiv=document.getElementById('div1');
var aimg=adiv.getElementsByTagName('img'); function ticky()
{ var adate=new Date();
var str=tostr(adate.getHours())+tostr(adate.getMinutes())+tostr(adate.getSeconds());
for (var i = 0; i < aimg.length; i++) {
aimg[i].src = "http://images.cnblogs.com/cnblogs_com/MenAngel/858965/o_" + str[i] + ".png";
}
}
setInterval(ticky,1000);
ticky();
}
</script>
</head>
<body>
<div id="div1">
<img src="http://images.cnblogs.com/cnblogs_com/MenAngel/858965/o_0.png"/>
<img src="http://images.cnblogs.com/cnblogs_com/MenAngel/858965/o_0.png"/>
<font size=5><b>:</b></font>
<img src="http://images.cnblogs.com/cnblogs_com/MenAngel/858965/o_0.png"/>
<img src="http://images.cnblogs.com/cnblogs_com/MenAngel/858965/o_0.png"/>
<font size=5><b>:</b></font>
<img src="http://images.cnblogs.com/cnblogs_com/MenAngel/858965/o_0.png"/>
<img src="http://images.cnblogs.com/cnblogs_com/MenAngel/858965/o_0.png"/>
</div>
</body>
</html>
(2)延时提示框:
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
<title>示例10.2</title>
<style>
div{
float:left;
margin:10px;
}
#div1{
width:50px;
height:50px;
background:red;
}
#div2{
width:200px;
height:180px;
background:#808080;
display:none;
}
</style>
<script>
window.onload = function () {
var aDiv1 = document.getElementById('div1');
var aDiv2 = document.getElementById('div2');
var timer = null;
aDiv2.onmouseover = aDiv1.onmouseover = function () {
clearTimeout(timer);
aDiv2.style.display = 'block';
}
aDiv2.onmouseout = aDiv1.onmouseout = function () {
timer= setTimeout(function () {
aDiv2.style.display = 'none';}, 500);
}
}
</script>
</head>
<body>
<div id="div1"> </div>
<div id="div2"></div>
</body>
</html>
(3)无缝滚动(任意方向)
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>示例10.3</title>
<style>
*{
margin: 0;
padding: 0;
}
#suround{
margin-top:20px;
}
.Direct{
float:left;
height: 200px;
}
#main_div{
width: 1200px;
height: 200px;
position: relative;
background: red;
overflow: hidden;
}
#main_div ul {
position: absolute;
left: 0px;
top: 0px;
}
#main_div ul li {
float: left;
width: 300px;
height:200px;
list-style: none;
}
#main_div ul li img{
width: 300px;
height:200px;
}
.D_img{
height:200px;
width:200px;
}
.D_img:hover{
cursor:pointer;
}
</style>
<script>
window.onload = function () {
var aDiv = document.getElementById('main_div');
var aUl = aDiv.getElementsByTagName('ul')[0];
var aLi = aUl.getElementsByTagName('li');
var timer = null;
var speed = -2; aUl.innerHTML = aUl.innerHTML + aUl.innerHTML; aUl.style.width = aLi[0].offsetWidth * aLi.length + 'px'; function move() {
if (aUl.offsetLeft < -aUl.offsetWidth / 2) {
aUl.style.left = '0';
}
if (aUl.offsetLeft > 0) {
aUl.style.left = -aUl.offsetWidth / 2 + 'px';
}
aUl.style.left = aUl.offsetLeft +speed+ 'px';
}
timer = setInterval(move, 30);
aDiv.onmouseover = function () {
clearInterval(timer);
}
aDiv.onmouseout = function () {
timer = setInterval(move, 30);
}
document.getElementsByClassName('D_img')[0].onclick = function () {
speed = -2;
}
document.getElementsByClassName('D_img')[1].onclick = function () {
speed = 2;
}
}
</script>
</head>
<body>
<div id="suround">
<div class="Direct">
<img class="D_img" src="http://images.cnblogs.com/cnblogs_com/MenAngel/858965/o_left.png" />
</div>
<div id="main_div" class="Direct">
<ul>
<li> <img src="http://images.cnblogs.com/cnblogs_com/MenAngel/858702/o_%E8%B5%AB%E6%9C%AC1.jpg" /></li>
<li> <img src="http://images.cnblogs.com/cnblogs_com/MenAngel/858702/o_%E8%B5%AB%E6%9C%AC2.jpg" /></li>
<li> <img src="http://images.cnblogs.com/cnblogs_com/MenAngel/858702/o_%E8%B5%AB%E6%9C%AC3.jpg" /></li>
<li> <img src="http://images.cnblogs.com/cnblogs_com/MenAngel/858702/o_%E8%B5%AB%E6%9C%AC4.jpg" /></li>
</ul>
</div>
<div class="Direct" >
<img class="D_img" src="http://images.cnblogs.com/cnblogs_com/MenAngel/858965/o_right.png" />
</div>
</div>
</body>
</html>
(4)模拟邮箱中checkbox的全选，反选和不选:
<!DOCTYPE html>
<html>
<head lang="en">
<meta charset="UTF-8">
<title>示例10.4</title>
<script>
function fanxuan(){
var mydv=document.getElementById('div2');
var mycb=mydv.getElementsByTagName('input');
for(var i=0;i<mycb.length;i++){
mycb[i].checked=(mycb[i].checked==true?false:true);
}
}
function quanxuan(){
var mydv=document.getElementById('div2');
var mycb=mydv.getElementsByTagName('input');
for(var i=0;i<mycb.length;i++)
{
mycb[i].checked=true;
}
}
function buxuan() {
var mydv = document.getElementById('div2');
var mycb = mydv.getElementsByTagName('input');
for (var i = 0; i < mycb.length; i++) {
mycb[i].checked = false;
}
}
</script>
</head>
<body>
<div id="div1">
<input type="button" value="全选" onclick="quanxuan()"/>
<input type="button" value="不选" onclick="buxuan()"/>
<input type="button" value="反选" onclick="fanxuan()"/>
</div>
<div id="div2">
<input type="checkbox"/>
<input type="checkbox"/>
<input type="checkbox"/>
<input type="checkbox"/>
<input type="checkbox"/>
<input type="checkbox"/>
<input type="checkbox"/>
</div>
</body>
</body>
</html>
(5)在新的选项卡里打开页面:(http://files.cnblogs.com/files/MenAngel/text06.zip)
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML>
<HEAD>
<TITLE>示例10.5</TITLE>
<META NAME="Generator" CONTENT="EditPlus">
<META NAME="Author" CONTENT="">
<META NAME="Keywords" CONTENT="">
<META NAME="Description" CONTENT="">
<style>
div,table,tr,td,a{font-size:12px};
</style>
<script language="JavaScript">
var x_open_path =""; //设置图标地址
</script>
<script language="JavaScript" src="x_open.js"></script>
</HEAD>
<BODY>
演示：
<a href="javascript:x_open('百度一下', 'http://www.baidu.com',800,800)" rel="external nofollow" >百度首页</a> -
<a href="javascript:x_open('我的首页', 'https://home.cnblogs.com/u/MenAngel/',800,800)" rel="external nofollow" >我的首页</a> -
<a href="javascript:x_open('管理后台', 'https://www.cnblogs.com/MenAngel/',800,800)" rel="external nofollow" >管理后台</a>
</BODY>
</HTML>
