Home > Others

Some common problems and solutions code! (Classic) 2

Source: Internet
Author: User
Developer on Alibaba Coud: Build your first app with APIs, SDKs, and tutorials on the Alibaba Cloud. Read more ＞
Right-click shielding

<A href = "http://ywicc.com" onmousedown = "If (event. Button = 2) Alert ('offset')"> ywicc.com </a>

Web Screen Saver

<Script language = "JavaScript">
Function screensave (){
Test. Value ++;
If (test. value = 5 ){
Test. style. Display = 'none ';
Document. All [4]. bgcolor = 'black ';
}
}
Function screenopen (){
Test. value = 0;
Test. style. Display = '';
Document. All [4]. bgcolor = '';
}
</SCRIPT>
<Body onkeydown = "screenopen ()" onmousemove = "screenopen ()" onLoad = "setinterval ('screensave () ', 1000)">
5-second screen saver <input id = "test">

Defines the size of the Start window when a Web page is opened.

<Script for = "window" event = "onLoad">
Window. resizeTo (500,300)
</SCRIPT>

Regular Expressions for letters and numbers

<Input onkeyup = "this. value = This. value. replace (/[^ A-Za-Z \ D]/g, '')" onbeforepaste = "this. value = This. value. replace (/[^ A-Za-Z \ D]/g, '')">

Layer that does not scroll with the page

<Body onscroll = "d1.style. Top = Document. Body. scrolltop + 10">
<Div id = "d1" style = "position: absolute; top: 10px; width: 100px; Height: 100px; Background-color: red;"> </div>

The same button in a form submits two pages

<Script language = "JavaScript">
Function testform (){
Window. Open ('', 't1 ');
Form1.action='1.htm ';
Form1.target = 't1 ';
Form1.submit ();
Window. Open ('', 't2 ');
Form1.action='2.htm ';
Form1.target = 't2 ';
Form1.submit ();
Window. Open ('', 't3 ');
Form1.action='3.htm ';
Form1.target = 't3 ';
Form1.submit ();
}
</SCRIPT>
<Form name = "form1">
<Input name = "test">
<Input type = "button" value = "Submit" onclick = "testform ()">
</Form>

 Determine if it is a number<Input type = "text" name = "num"> <input type = "button" name = "test" onclick = "testnum ()">
<Script language = "JavaScript">
<! --
Function testnum (){
VaR pattern =/^ \ D + $/g;
If (! (Pattern. Test (Num. Value )))
{Alert ("Please input a number! ")}
}
// -->
</SCRIPT>

 ALT and title branches<A href = "#" Title = "Change
Row and line "> test </a>

Cancel selection and prevent Replication

<Body onselectstart = "Return false">
<P> 111111111111111111111111111111111 </P>
</Body>

Disable Input Method

<Input style = "ime-mode: Disabled">

Always carry the framework

<Script language = "JavaScript"> <! --
If (window = Top) top. Location. href = "frames.htm"; // frames.htm is the frame webpage.
// --> </SCRIPT>

Prevent Frame

<Script language = JavaScript> <! --
If (top. location! = Self. Location) top. Location = self. location;
// --> </SCRIPT>

Webpages cannot be saved

<NoScript> <IFRAME src = *. html> </iframe> </NoScript>

Confirm deletion

<A href = 'javascript: If (confirm ("are you sure you want to delete it? ") Location =" boos. asp? & Areyou = Delete & page = 1 "'> Delete </a>

Obtain the absolute position of a widget

// Javascript
<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>

// VBScript
<Script language = "VBScript"> <! --
Function getie ()
Dim t, L, A, B
Set a = Document. All. img1
T = Document. All. img1.offsettop
L = Document. All. img1.offsetleft
While a. tagname <> "body"
Set a = A. offsetparent
T = T + A. offsettop
L = L + A. offsetleft
Wend
Msgbox "Top =" & T & CHR (13) & "Left =" & L, 64, "Get control position"
End Function
--> </SCRIPT>

The cursor stops at the end of the text box.

<Script language = "JavaScript">
Function CC () Mask function keys shift, ALT, CTRL

<SCRIPT>
Function look (){
If (event. shiftkey)
Alert ("do not press shift! "); // You can change it to alt CTRL
}
Document. onkeydown = look;
</SCRIPT>

The webpage will not be cached

<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">
Or <meta HTTP-EQUIV = "expires" content = "0">

How to make the form feel free

<Input type = text style = "border: 1 solid #000000">
Or
<Input type = text style = "border-left: none; border-Right: none; border-top: none; border-bottom: 1 solid #000000"> </textarea>

 <Div> <span> & <layer> Differences<Div> (Division) is used to define the page elements of a large segment, and a line is generated.
<Span> is used to define elements in the same row. The only difference between <div> and <div> is that no transpose is generated.
<Layer> is the NS tag, which is not supported by IE, which is equivalent to <div>

Make the pop-up window always at the top

<Body onblur = "This. Focus ();">

Do not scroll bar

Make the vertical bar not:

<Body style = 'overflow: Scroll; overflow-Y: Den den '>
</Body>

Make the horizontal bar unavailable:

<Body style = 'overflow: Scroll; overflow-X: Den den '>
</Body>

Remove both of them? Simpler

<Body scroll = "no">
</Body>

How to remove the image link and click the dotted line around the image

<A href = "#" onfocus = "This. Blur ()"> </a>

Email processing submission form <form name = "form1" method = "Post" Action = "mailt ***** @ ***. com" enctype = "text/plain">
<Input type = submit>
</Form>

Child Window refresh parent window. opener. Location. Reload ()

How to add a background image that is not full? The background image does not move when pulling the page <style>
Body
{Background-image: URL (images/51js/51js.gif); background-repeat: No-Repeat; Background-position: center; Background-Attachment: Fixed}
</Style>

Check whether a string is composed of digits <script language = "JavaScript"> <! --
Function checknum (STR) {return Str. Match (// D/) = NULL}
Alert (checknum ("1232142141 "))
Alert (checknum ("123214214a1 "))
// --> </SCRIPT>

 Restrict the selected width from the drop-down list.<Select name = "select" style = "width: 300"> </SELECT>

Open a new window, and the width and height of the window is the actual height and width of the image

Center the pop-up window

Method 1:

<SCRIPT>
Mywin = Window. Open ("about: blank", "", "width = 200, Height = 160 ");
Mywin. moveTo (screen. width/2-100, screen. Height/2-80 );
</SCRIPT>

Method 2:

<SCRIPT>
T = 200;
L = 200;
Window. open ('about: blank ', '', 'width =' + L + ', Height =' + T + ', Top =' + (screen. availheight/2-T/2) + ', Left =' + (screen. availwidth/2-l/2 ));
</SCRIPT>

This article is an English version of an article which is originally in the Chinese language on aliyun.com and is provided for information purposes only. This website makes no representation or warranty of any kind, either expressed or implied, as to the accuracy, completeness ownership or reliability of the article or any translations thereof. If you have any concerns or complaints relating to the article, please send an email, providing a detailed description of the concern or complaint, to info-contact@alibabacloud.com. A staff member will contact you within 5 working days. Once verified, infringing content will be removed immediately.

Contact Us

The content source of this page is from Internet, which doesn't represent Alibaba Cloud's opinion; products and services mentioned on that page don't have any relationship with Alibaba Cloud. If the content of the page makes you feel confusing, please write us an email, we will handle the problem within 5 days after receiving your email.

If you find any instances of plagiarism from the community, please send an email to: info-contact@alibabacloud.com and provide relevant evidence. A staff member will contact you within 5 working days.

A Free Trial That Lets You Build Big!

Start building with 50+ products and up to 12 months usage for Elastic Compute Service

Get Started for Free

  • Sales Support

    1 on 1 presale consultation

    Chat Contact Sales

  • After-Sales Support

    24/7 Technical Support 6 Free Tickets per Quarter Faster Response

    Open a Ticket

  • Alibaba Cloud offers highly flexible support services tailored to meet your exact needs.

    Learn More