17.屏蔽功能键Shift,Alt,Ctrl
<!--<br /> <br /> Code highlighting produced by Actipro CodeHighlighter (freeware)<br /> http://www.CodeHighlighter.com/<br /> <br /> -->
<
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
<!--<br /> <br /> Code highlighting produced by Actipro CodeHighlighter (freeware)<br /> http://www.CodeHighlighter.com/<br /> <br /> -->
<
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?
<!--<br /> <br /> Code highlighting produced by Actipro CodeHighlighter (freeware)<br /> http://www.CodeHighlighter.com/<br /> <br /> -->
<
input
type
=text
style
="border:1 solid #000000"
>
或
<!--<br /> <br /> Code highlighting produced by Actipro CodeHighlighter (freeware)<br /> http://www.CodeHighlighter.com/<br /> <br /> -->
<
input
type
=text
style
="border-left:none; border-right:none; border-top:none; border-bottom:
1 solid #000000"
></
textarea
>
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:
<!--<br /> <br /> Code highlighting produced by Actipro CodeHighlighter (freeware)<br /> http://www.CodeHighlighter.com/<br /> <br /> -->
<
body
onblur
="this.focus();"
>
22.不要滚动条?
让竖条没有:
<!--<br /> <br /> Code highlighting produced by Actipro CodeHighlighter (freeware)<br /> http://www.CodeHighlighter.com/<br /> <br /> -->
<
body
style
=`overflow:-Scroll;overflow-y:hidden`
>
</
body
>
让横条没有:
<!--<br /> <br /> Code highlighting produced by Actipro CodeHighlighter (freeware)<br /> http://www.CodeHighlighter.com/<br /> <br /> -->
<
body
style
=`overflow:-Scroll;overflow-x:hidden`
>
</
body
>
两个都去掉?更简单了
<!--<br /> <br /> Code highlighting produced by Actipro CodeHighlighter (freeware)<br /> http://www.CodeHighlighter.com/<br /> <br /> -->
<
body
scroll
="no"
>
</
body
>
23.怎样去掉图片链接点击后,图片周围的虚线?
<!--<br /> <br /> Code highlighting produced by Actipro CodeHighlighter (freeware)<br /> http://www.CodeHighlighter.com/<br /> <br /> -->
<
a
href
="#"
onFocus
="this.blur()"
><
img
src
="logo.jpg"
border
=0
></
a
>
24.电子邮件处理提交表单
<!--<br /> <br /> Code highlighting produced by Actipro CodeHighlighter (freeware)<br /> http://www.CodeHighlighter.com/<br /> <br /> -->
<
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的代码里如何写?
<!--<br /> <br /> Code highlighting produced by Actipro CodeHighlighter (freeware)<br /> http://www.CodeHighlighter.com/<br /> <br /> -->
window.opener.location.reload()
26.如何设定打开页面的大小
<!--<br /> <br /> Code highlighting produced by Actipro CodeHighlighter (freeware)<br /> http://www.CodeHighlighter.com/<br /> <br /> -->
<
body
onload
="top.resizeTo(300,200);"
>
打开页面的位置
<!--<br /> <br /> Code highlighting produced by Actipro CodeHighlighter (freeware)<br /> http://www.CodeHighlighter.com/<br /> <br /> -->
<
body
onload
="top.moveBy(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
<!--<br /> <br /> Code highlighting produced by Actipro CodeHighlighter (freeware)<br /> http://www.CodeHighlighter.com/<br /> <br /> -->
<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
<!--<br /> <br /> Code highlighting produced by Actipro CodeHighlighter (freeware)<br /> http://www.CodeHighlighter.com/<br /> <br /> -->
<
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
<!--<br /> <br /> Code highlighting produced by Actipro CodeHighlighter (freeware)<br /> http://www.CodeHighlighter.com/<br /> <br /> -->
document.body.clientWidth;
document.body.clientHeight
30. 怎么判断是否是字符
<!--<br /> <br /> Code highlighting produced by Actipro CodeHighlighter (freeware)<br /> http://www.CodeHighlighter.com/<br /> <br /> -->
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
<!--<br /> <br /> Code highlighting produced by Actipro CodeHighlighter (freeware)<br /> http://www.CodeHighlighter.com/<br /> <br /> -->
<
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
<!--<br /> <br /> Code highlighting produced by Actipro CodeHighlighter (freeware)<br /> http://www.CodeHighlighter.com/<br /> <br /> -->
<
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
<!--<br /> <br /> Code highlighting produced by Actipro CodeHighlighter (freeware)<br /> http://www.CodeHighlighter.com/<br /> <br /> -->
<
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
="barcode"
>
Barcode
<
INPUT
type
="button"
value
="check"
onclick
="checkme()"
>
</
BODY
></
HTML
>
34.脚本永不出错
<!--<br /> <br /> Code highlighting produced by Actipro CodeHighlighter (freeware)<br /> http://www.CodeHighlighter.com/<br /> <br /> -->
<
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
<!--<br /> <br /> Code highlighting produced by Actipro CodeHighlighter (freeware)<br /> http://www.CodeHighlighter.com/<br /> <br /> -->
<
input
onkeydown
="if(event.keyCode==13)event.keyCode=9"
>
36. 检测某个网站的链接速度:
把如下代码加入<body>区域中:
<!--<br /> <br /> Code highlighting produced by Actipro CodeHighlighter (freeware)<br /> http://www.CodeHighlighter.com/<br /> <br /> -->
<
script language
=
javascript
>
tim
=
1
setInterval(
"
tim++
"
,
100
)
b
=
1
var
autourl
=
new
Array()
autourl[
1
]
=
"
http://www.njcatv.net/
"
;
autourl[
2
]
=
"
javacool.3322.net
"
autourl[
3
]
=
"
http://www.sina.com.cn/
"
;
autourl[
4
]
=
"
http://www.nuaa.edu.cn/
"
;
autourl[
5
]
=
"
http://www.cctv.com/
"
;
function
butt(){
document.write(
"
<form name=autof>
"
for
(
var
i
=
1
;i
<
autourl.length;i
++
)
document.write(
"
<input type=text name=txt
"
+
i
+
"
size=10 value=测试中……> =》<input type=text
name=url
"
+
i
+
"
size=40> =》<input type=button value=GO
onclick=window.open(this.form.url
"
+
i
+
"
.value)><br>
"
document.write(
"
<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
=
"
时间
"
+
tim
/
10
+
"
秒
"
}
b
++
}
function
run(){
for
(
var
i
=
1
;i
<
autourl.length;i
++
)document.write(
"
<img
src=http://
"
+
autourl
+
"
/
"
+
Math.random()
+
"
width=1 height=1
onerror=auto(http://
"
;
+
autourl
+
"
`)>
"
}
run()
</
script
>