这55个技巧呢...很多书上都有介绍...网上也有很多介绍...
我是从书上看到的...觉得真的很好...呵呵...
快看看吧!~
1.屏蔽鼠标右键
oncontextmenu
=
"
window.event.returnValue=false
"
//
也可用于table
<
table oncontextmenu
=
"
return false
"
>
<
tr
><
td
>
55技巧
</
td
></
tr
>
</
table
>
2.取消选取、防止复制
<
body onselectstart
=
"
return false
"
>
3.不准粘贴
<
script language
=
"
javascript
"
>
<!--
if
(window
==
top)top.location.href
=
"
frames.htm
"
;
//
frames.htm为框架网页
-->
</
script
>
4. 防止复制
oncopy
=
"
return false
"
oncut
=
"
return false
"
5.浏览器地址栏前换成自己的图标
<
link rel
=
"
Shortcut Icon
"
href
=
"
favicon.ico
"
>
6.可以在收藏夹中显示出你的图标
<
link rel
=
"
Bookmark
"
href
=
"
favicon.ico
"
>
7.关闭输入法
<
input style
=
"
ime-mode:disabled
"
>
8. 永远都会带着框架
<
script language
=
"
javascript
"
>
<!--
if
(window
==
top)top.location.href
=
"
frames.htm
"
;
//
frames.htm为框架网页
//
-->
</
script
>
9.防止被人frame
<
script language
=
"
javascript
"
>
<!--
if
(top.location
!=
self.location)top.location
=
self.location;
//
-->
</
script
>
10.网页将不能被另存为
<
noscript
><***
src
=
"
/*.html>
"
;
<
/*
**></noscript>
11.查看网页源代码
<
input type
=
button value
=
"
查看网页源代码 onclick=
"
window.location
=
"
view-source:
"
+
"
http://www.pconline.com.cn
"
>
12.删除时确认
<
a href
=
""
javascript:
if
(confirm(
"
确实要删除吗?
"
))location
=
"
boos.asp?&areyou=删除&page=1
""
>删除</a>
13.取得控件的绝对位置
<
script language
=
"
javascript
"
>
function getIE(e){
var t
=
e.offsetTop;
var l
=
e.offsetLeft;
while
(e
=
e.offsetParent){
t
+=
e.offsetTop;
l
+=
e.offsetLeft;
}
alert(
"
top=
"
+
t
+
"
/nleft=
"
+
l);
}
</
script
>
14.光标是停在文本框文字的最后
<
script language
=
"
javascript
"
>
function cc()
{
var e
=
event
.srcElement;
var r
=
e.createTextRange();
r.moveStart(
"
character
"
,e.value.length);
r.collapse(
true
);
r.select();
}
</
script
>
<
input type
=
text name
=
text1 value
=
"
123
"
onfocus
=
"
cc()
"
>
15.判断上一页的来源
javascript:document.referrer
16. 最小化、最大化、关闭窗口
<
object
id
=
hh1 classid
=
"
clsid:ADB880A6-D8FF-11CF-9377-00AA003B7A11
"
>
<
param name
=
"
Command
"
value
=
"
Minimize
"
></
object
>
<
object
id
=
hh2 classid
=
"
clsid:ADB880A6-D8FF-11CF-9377-00AA003B7A11
"
>
<
param name
=
"
Command
"
value
=
"
Maximize
"
></
object
>
<
OBJECT id
=
hh3 classid
=
"
clsid:adb880a6-d8ff-11cf-9377-00aa003b7a11
"
>
<
PARAM NAME
=
"
Command
"
value
=
"
/Close
"
></
OBJECT
>
<
input type
=
button value
=
"
/最小化 onclick=hh1.Click()>
<
input type
=
button value
=
"
/blog/最大化 onclick=hh2.Click()>
<
input type
=
button value
=
关闭 onclick
=
hh3.Click()
>
本例适用于IE
17.屏蔽功能键Shift,Alt,Ctrl
<
script
>
function look(){
if
(
event
.shiftKey)
alert(
"
禁止按Shift键!
"
);
//
可以换成ALT CTRL
}
document.onkeydown
=
look;
</
script
>
18.网页不会被缓存
<
META HTTP
-
EQUIV
=
"
pragma
"
CONTENT
=
"
no-cache
"
>
<
META HTTP
-
EQUIV
=
"
Cache-Control
"
CONTENT
=
"
no-cache, must-revalidate
"
>
<
META HTTP
-
EQUIV
=
"
expires
"
CONTENT
=
"
Wed, 26 Feb 1997 08:21:57 GMT
"
>
或者
<
META HTTP
-
EQUIV
=
"
expires
"
CONTENT
=
"
0
"
>
19.怎样让表单没有凹凸感
<
input type
=
"
text
"
style
=
"
border:1 solid #000000
"
>
或
<
input type
=
"
text
"
style
=
"
border-left:none; border-right:none; border-top:none; border-bottom: 1 solid #000000
"
>
20.<div><span>&<layer>的区别
<
div
>
(division)用来定义大段的页面元素,会产生转行
<
span
>
用来定义同一行内的元素,跟
<
div
>
的唯一区别是不产生转行
<
layer
>
是ns的标记,ie不支持,相当于
<
div
>
21.让弹出窗口总是在最上面
<
body onblur
=
"
this.focus();
"
>
22.不要滚动条
让竖条没有:
<
body style
=
"
overflow:scroll;overflow-y:hidden
"
>
</
body
>
让横条没有:
<
body style
=
"
overflow:scroll;overflow-x:hidden
"
>
</
body
>
两个都去掉?更简单了
<
body scroll
=
"
no
"
>
</
body
>
23.怎样去掉图片链接点击后,图片周围的虚线
<
a href
=
"
#
"
onFocus
=
"
this.blur()
"
><
img src
=
"
/logo.jpg
"
border
=
0
></
a
>
24.电子邮件处理提交表单
<
form name
=
"
form1
"
method
=
"
post
"
action
=
mailto:
****
@
***
.com enctype
=
"
text/plain
"
>
<
input type
=
"
submit
"
>
</
form
>
25.在打开的子窗口刷新父窗口
window.opener.location.reload()
26.设定打开页面的大小
<
body onload
=
"
top.resizeTo(300,200);
"
>
27.在页面中如何加入不是满铺的背景图片,拉动页面时背景图不动
<
style
>
body{
background
-
image:url(
/
logo.gif); background
-
repeat:no
-
repeat;
background
-
position:center;background
-
attachment:
fixed
}
</
style
>
28.检查一段字符串是否全由数字组成
<
script language
=
"
javascript
"
>
function checkNum(str){
return
str.match(
//
D/)==null}
alert(checkNum(
"
1232142141
"
))
alert(checkNum(
"
123214214a1
"
))
</
script
>
29.获得一个窗口的大小
document.body.clientWidth; document.body.clientHeight
30.怎么判断是否是字符
if
(
/
[
^/
x00
-/
xff]
/
g.test(s))
alert(
"
含有汉字
"
);
else
alert(
"
全是字符
"
);
31.textarea自适应文字行数的多少
<
textarea rows
=
1
name
=
s1 cols
=
27
onpropertychange
=
"
this.style.posHeight=this.scrollHeight
"
>
</
textarea
>
32.日期减去天数等于第二个日期
<
script language
=
Javascript
>
function cc(dd,dadd)
{
//
可以加上错误处理
var a
=
new
Date(dd)
a
=
a.valueOf()
a
=
a
-
dadd
*
24
*
60
*
60
*
1000
a
=
new
Date(a)
alert(a.getFullYear()
+
"
年
"
+
(a.getMonth()
+
1
)
+
"
月
"
+
a.getDate()
+
"
日
"
)
}
cc(
"
12/23/2002
"
,
2
)
</
script
>
33.选择了哪一个Radio
<
html
><
script language
=
"
vbscript
"
>
function checkme()
for
each ob
in
radio1
if
ob.
checked
then
window.alert ob.value
next
end function
</
script
>
<
body
>
<
INPUT name
=
"
radio1
"
type
=
"
radio
"
value
=
"
/style
"
checked
>
Style
<
INPUT name
=
"
radio1
"
type
=
"
radio
"
value
=
"
/blog/barcode
"
>
Barcode
<
INPUT type
=
"
button
"
value
=
"
check
"
onclick
=
"
checkme()
"
>
</
body
>
</
html
>
34.脚本永不出错
<
script language
=
"
javascript
"
>
<!--
Hide
function killErrors() {
return
true
;
}
window.onerror
=
killErrors;
//
-->
</
script
>
35.Enter键可以让光标移到下一个输入框
<
input onkeydown
=
"
if(event.keyCode==13)event.keyCode=9
"
>
36.检测某个网站的链接速度
Code
//把如下代码加入<body>区域中
<script language=Javascript>
tim=1
setInterval("tim++",100)
b=1
var autourl=new Array()
autourl[1]=1000){this.resized=true;this.style.width=1000;}" align=absMiddle border=0>www.njcatv.net"
autourl[2]="javacool.3322.net"
autourl[3]=1000){this.resized=true;this.style.width=1000;}" align=absMiddle border=0>www.sina.com.cn"
autourl[4]="www.nuaa.edu.cn"
autourl[5]=1000){this.resized=true;this.style.width=1000;}" align=absMiddle border=0>www.cctv.com"
function butt(){
***("<form name=autof>")
for(var i=1;i<autourl.length;i++)
***("<input type=text name=txt"+i+" size=10 value="/测试中……> =》<input type=text
name=url"+i+" size=40> =》<input type=button value="/blog/GO
onclick=window.open(this.form.url"+i+".value)><br>")
***("<input type=submit value=刷新></form>")
}
butt()
function auto(url){
document.forms[0]["url"+b].value=url
if(tim>200)
{document.forms[0]["txt"+b].value="/链接超时"}
else
{document.forms[0]["txt"+b].value="/blog/时间"+tim/10+"秒"}
b++
}
function run(){for(var i=1;i<autourl.length;i++)***("<img src=http://"+autourl+"/"+Math.random()+" width=1 height=1
onerror=auto("http://"+autourl+"")>")}
run()
</script>
37.各种样式的光标
auto :标准光标
default
:标准箭头
hand :手形光标
wait :等待光标
text :I形光标
vertical
-
text :水平I形光标
no
-
drop :不可拖动光标
not
-
allowed :无效光标
help :
?
帮助光标
all
-
scroll :三角方向标
move :移动标
crosshair :十字标
38.页面进入和退出的特效
Code
进入页面<meta http-equiv="Page-Enter" content="revealTrans(duration=x, transition=y)">
推出页面<meta http-equiv="Page-Exit" content="revealTrans(duration=x, transition=y)">
这个是页面被载入和调出时的一些特效。duration表示特效的持续时间,以秒为单位。transition表示使用哪种特效,取值为1-23:
0 矩形缩小
1 矩形扩大
2 圆形缩小
3 圆形扩大
4 下到上刷新
5 上到下刷新
6 左到右刷新
7 右到左刷新
8 竖百叶窗
9 横百叶窗
10 错位横百叶窗
11 错位竖百叶窗
12 点扩散
13 左右到中间刷新
14 中间到左右刷新
15 中间到上下
16 上下到中间
17 右下到左上
18 右上到左下
19 左上到右下
20 左下到右上
21 横条
22 竖条
23 以上22种随机选择一种
39.在规定时间内跳转
<
META http
-
equiv
=
V
=
"
REFRESH
"
content
=
"
5;URL=http://www.51js.com
"
>
40.网页是否被检索
<
meta name
=
"
ROBOTS
"
content
=
"
属性值
"
>
//
其中属性值有以下一些:
属性值为
"
all
"
: 文件将被检索,且页上链接可被查询;
属性值为
"
none
"
: 文件不被检索,而且不查询页上的链接;
属性值为
"
index
"
: 文件将被检索;
属性值为
"
follow
"
: 查询页上的链接;
属性值为
"
noindex
"
: 文件不检索,但可被查询链接;
属性值为
"
nofollow
"
: 文件不被检索,但可查询页上的链接。
41.Email地址的分割
//
把如下代码加入<body>区域中
<
a href
=
"
mailto:[email protected]
"
>
mailto:sukiwqy@
163
.com
</
a
>
42.流动边框效果的表格
Code
//把如下代码加入<body>区域中
<script>
l=Array(6,7,8,9,'a','b','b','c','d','e','f')
Nx=5;Ny=35
t="<table border=0 cellspacing=0 cellpadding=0 height="+((Nx+2)*16)+"><tr>"
for(x=Nx;x<Nx+Ny;x++)
t+="<td width=16 id=a_mo"+x+"> </td>"
t+="</tr><tr><td width=10 id=a_mo"+(Nx-1)+"> </td><td colspan="+(Ny-2)+" rowspan="+(Nx)+"> </td><td width=16 id=a_mo"+(Nx+Ny)+"></td></tr>"
for(x=2;x<=Nx;x++)
t+="<tr><td width=16 id=a_mo"+(Nx-x)+"> </td><td width=16 id=a_mo"+(Ny+Nx+x-1)+"> </td></tr>"
t+="<tr>"
for(x=Ny;x>0;x--)
t+="<td width=16 id=a_mo"+(x+Nx*2+Ny-1)+"> </td>"
***(t+"</tr></table>")
var N=Nx*2+Ny*2
function f1(y){
for(i=0;i<N;i++){
c=(i+y)%20;if(c>10)c=20-c
document.all["a_mo"+(i)].bgColor=""""#0000"+l[c]+l[c]+"'"}
y++
setTimeout('f1('+y+')','1')}
f1(1)
</script>
43.Javascript主页弹出窗口技巧
Code
窗口中间弹出
<script>
window.open("http://www.cctv.com","","width=400,height=240,top="+(screen.availHeight-240)/2+",left="+(screen.availWidth-400)/2);
</script>
============
<html>
<head>
<script language="LiveScript">
function WinOpen() {
msg=open("","DisplayWindow","toolbar=no,directories=no,menubar=no");
msg.***("<HEAD><TITLE>哈 罗!</TITLE></HEAD>");
msg.***("<CENTER><H1>酷 毙 了!</H1><h2>这 是<B>JavaScript</B>所 开 的 视 窗!</h2></CENTER>");
}
</script>
</head>
<body>
<form>
<input type="button" name="Button1" value="Push me" onclick="WinOpen()">
</form>
</body>
</html>
==============
一、在下面的代码中,你只要单击打开一个窗口,即可链接到赛迪网。而当你想关闭时,只要单击一下即可关闭刚才打开的窗口。
代码如下:
<SCRIPT language="JavaScript">
<!--
function openclk() {
another=open('1000){this.resized=true;this.style.width=1000;}" align=absMiddle border=0>http://www.ccidnet.com','NewWindow');
}
function closeclk() {
another.close();
}
//-->
</SCRIPT>
<FORM>
<INPUT TYPE="BUTTON" NAME="open" value="/打开一个窗口" onClick="openclk()">
<BR>
<INPUT TYPE="BUTTON" NAME="close" value="/blog/关闭这个窗口" onClick="closeclk()">
</FORM>
二、上面的代码也太静了,为何不来点动感呢?如果能给页面来个降落效果那该多好啊!
代码如下:
<script>
function drop(n) {
if(self.moveBy){
self.moveBy (0,-900);
for(i = n; i > 0; i--){
self.moveBy(0,3);
}
for(j = 8; j > 0; j--){
self.moveBy(0,j);
self.moveBy(j,0);
self.moveBy(0,-j);
self.moveBy(-j,0);
}
}
}
</script>
<body onLoad="drop(300)">
三、讨厌很多网站总是按照默认窗口打开,如果你能随心所欲控制打开的窗口那该多好。
代码如下:
<SCRIPT LANGUAGE="JavaScript">
<!-- Begin
function popupPage(l, t, w, h) {
var windowprops = "location=no,scrollbars=no,menubars=no,toolbars=no,resizable=yes" +
",left=" + l + ",top=" + t + ",width=" + w + ",height=" + h;
var URL = "http://www.80cn.com";
popup = window.open(URL,"MenuPopup",windowprops);
}
// End -->
</script>
<table>
<tr>
<td>
<form name=popupform>
<pre>
打开页面的参数<br>
离开左边的距离: <input type=text name=left size=2 maxlength=4> pixels
离开右边的距离: <input type=text name=top size=2 maxlength=4> pixels
窗口的宽度: <input type=text name=width size=2 maxlength=4> pixels
窗口的高度: <input type=text name=height size=2 maxlength=4> pixels
</pre>
<center>
<input type=button value="打开这个窗口!" onClick="popupPage(this.form.left.value, this.form.top.value, this.form.width.value,
this.form.height.value)">
</center>
</form>
</td>
</tr>
</table>你只要在相对应的对话框中输入一个数值即可,将要打开的页面的窗口控制得很好。
44.页面的打开移动
Code
把如下代码加入<body>区域中
<script language="javascript">
<!-- Begin
for (t = 2; t > 0; t--) {
for (x = 20; x > 0; x--) {
for (y = 10; y > 0; y--) {
parent.moveBy(0,-x);
}
}
for (x = 20; x > 0; x--) {
for (y = 10; y > 0; y--) {
parent.moveBy(0,x);
}
}
for (x = 20; x > 0; x--) {
for (y = 10; y > 0; y--) {
parent.moveBy(x,0);
}
}
for (x = 20; x > 0; x--) {
for (y = 10; y > 0; y--) {
parent.moveBy(-x,0);
}
}
}
//-->
// End -->
</script>
45.显示个人客户端机器的日期和时间
<
script language
=
"
javacript
"
>
<!--
Hiding
today
=
new
Date()
***
(
"
现 在 时 间 是:
"
,today.getHours(),
"
:
"
,today.getMinutes())
***
(
"
<br>今 天 日 期 为:
"
, today.getMonth()
+
1
,
"
/
"
,today.getDate(),
"
/
"
,today.getYear());
//
end hiding contents -->
</
script
>
46.自动的为你每次产生最後修改的日期
<
html
>
<
body
>
This
is
a simple HTML
-
page.
<
br
>
Last changes:
<
script language
=
"
LiveScript
"
>
<!--
hide script from old browsers
***
(document.lastModified)
//
end hiding contents -->
</
script
>
</
body
>
</
html
>
47.不能为空和邮件地址的约束
Code
<html>
<head>
<script language="JavaScript">
<!-- Hide
function test1(form) {
if (form.text1.value == "")
alert("您 没 写 上 任 何 东 西, 请 再 输 入 一 次 !")
else {
alert("嗨 "+form.text1.value+"! 您 已 输 入 完 成 !");
}
}
function test2(form) {
if (form.text2.value == "" ||
form.text2.value.indexOf('@', 0) == -1)
alert("这 不 是 正 确 的 e-mail address! 请 再 输 入 一 次 !");
else alert("您 已 输 入 完 成 !");
}
// -->
</script>
</head>
<body>
<form name="first">
Enter your name:<br>
<input type="text" name="text1">
<input type="button" name="button1" value="输 入 测 试" onClick="test1(this.form)">
<P>
Enter your e-mail address:<br>
<input type="text" name="text2">
<input type="button" name="button2" value="输 入 测 试" onClick="test2(this.form)">
</body>
48.跑马灯
Code
<html>
<head>
<script language="JavaScript">
<!-- Hide
var scrtxt="怎麽样 ! 很酷吧 ! 您也可以试试."+"Here goes your message the visitors to your
page will "+"look at for hours in pure fascination";
var lentxt=scrtxt.length;
var width=100;
var pos=1-width;
function scroll() {
pos++;
var scroller="";
if (pos==lentxt) {
pos=1-width;
}
if (pos<0) {
for (var i=1; i<=Math.abs(pos); i++) {
scroller=scroller+" ";}
scroller=scroller+scrtxt.substring(0,width-i+1);
}
else {
scroller=scroller+scrtxt.substring(pos,width+pos);
}
window.status = scroller;
setTimeout("scroll()",150);
}
//-->
</script>
</head>
<body onLoad="scroll();return true;">
这里可显示您的网页 !
</body>
</html>
49.在网页中用按钮来控制前页,后页和主页的显示
<
html
>
<
body
>
<
FORM NAME
=
"
buttonbar
"
>
<
INPUT TYPE
=
"
button
"
VALUE
=
"
Back
"
onClick
=
"
history.back()
"
>
<
INPUT TYPE
=
"
button
"
VALUE
=
"
JS- Home
"
onClick
=
"
location='script.html'
"
>
<
INPUT TYPE
=
"
button
"
VALUE
=
"
Next
"
onCLick
=
"
history.forward()
"
>
</
FORM
>
</
body
>
</
html
>
50.查看某网址的源代码
Code
//把如下代码加入<body>区域中
<SCRIPT>
function add()
{
var ress=document.forms[0].luxiaoqing.value
window.location="view-source:"+ress;
}
</SCRIPT>
输入要查看源代码的URL地址:
<FORM><input type="text" name="luxiaoqing" size=40 value="http://"></FORM>
<FORM><br>
<INPUT type="button" value="查看源代码" onClick=add()>
</FORM>
51.title显示日期
Code
把如下代码加入<body>区域中:
<script language="JavaScript1.2">
<!--hide
var isnMonth = new
Array("1月","2月","3月","4月","5月","6月","7月","8月","9月","10月","11月","12月");
var isnDay = new
Array("星期日","星期一","星期二","星期三","星期四","星期五","星期六","星期日");
today = new Date () ;
Year=today.getYear();
Date=today.getDate();
if (document.all)
document.title="今天是: "+Year+"年"+isnMonth[today.getMonth()]+Date+"日"+isnDay[today.getDay()]
//--hide-->
</script>
52.显示所有链接
Code
//把如下代码加入<body>区域中
<script language="JavaScript1.2">
<!--
function extractlinks(){
var links=document.all.tags("A")
var total=links.length
var win2=window.open("","","menubar,scrollbars,toolbar")
win2.***("<font size='2'>一共有"+total+"个连接</font><br>")
for (i=0;i<total;i++){
win2.***("<font size='2'>"+links[i].outerHTML+"</font><br>")
}
}
//-->
</script>
<input type="button" onClick="extractlinks()" value="显示所有的连接">
53.回车键换行
Code
<script type="text/javascript">
function handleEnter (field, event) {
var keyCode = event.keyCode ? event.keyCode : event.which ?
event.which : event.charCode;
if (keyCode == 13) {
var i;
for (i = 0; i < field.form.elements.length; i++)
if (field == field.form.elements[i])
break;
i = (i + 1) % field.form.elements.length;
field.form.elements[i].focus();
return false;
}
else
return true;
}
</script>
<form>
<input type="text" onkeypress="return handleEnter(this, event)"><br>
<input type="text" onkeypress="return handleEnter(this, event)"><br>
<textarea>//回车换行
54.确认后提交
Code
<SCRIPT LANGUAGE="JavaScript">
<!--
function msg(){
if (confirm("你确认要提交嘛!"))
document.lnman.submit()
}
//-->
</SCRIPT>
<form name="lnman" method="post" action="">
<p>
<input type="text" name="textfield" value="确认后提交">
</p>
<p>
<input type="button" name="Submit" value="提交" onclick="msg();">
</p>
</form>
55.改变表格的内容
Code
<script language="javascript">
var arr=new Array()
arr[0]="一一一一一";
arr[1]="二二二二二";
arr[2]="三三三三三";
</script>
<select onchange="zz.cells[this.selectedIndex].innerHTML=arr[this.selectedIndex]">
<option value=a>改变第一格</option>
<option value=a>改变第二格</option>
<option value=a>改变第三格</option>
</select>
<table id=zz border=1>
<tr height=20>
<td width=150>第一格</td>
<td width=150>第二格</td>
<td width=150>第三格</td>
</tr>
</table>