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JavaScript block sample code for page operations _javascript tips

Source: Internet
Author: User
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Single JS ban page right menu--Avoid web site information stolen

Copy Code code as follows:

<script type= "Text/javascript" >
function Block (oevent) {
if (window.event)
Oevent=window.event;
if (oevent.button==2)
Alert ("right mouse button not available");
}
Document.onmousedown=block;
</script>

Copying on a Web page is largely accomplished by JavaScript.

<body oncontextmenu= ' return false ' onselectstart= ' return false '
Ondragstart= ' return false ' onbeforecopy= ' return False ' Oncopy=document.selection.empty () onselect= Document.selection.empty () >
-----------------------------------------------
Prevent replication of JS
-----------------------------------------------

Copy Code code as follows:

<script language=javascript1.2>
function Disableselect (e) {
return false} The
Function reenable () {return True
}
file://if ie4+
document.onselectstart=new function ("R Eturn false ")
file://if NS6
if (window.sidebar) {
Document.onmousedown=disableselect
document.onclick= Reenable
}
</SCRIPT>
<script language=javascript type=text/javascript>
<!--
Functi On Mm_reloadpage (init) {   //reloads the window if Nav4 resized
    if (init==true) WI Th (Navigator) {if (appname== "Netscape") && (parseint (appversion) ==4)) {
      Document. Mm_pgw=innerwidth; Document. Mm_pgh=innerheight; Onresize=mm_reloadpage; }
    else if (innerwidth!=document. MM_PGW | | Innerheight!=document. MM_PGH) location.reload ();
}
Mm_reloadpage (true);
//-->
</SCRIPT>

-------------------------------------------------------
Prevent the download of JS
-------------------------------------------------------
<noscript><iframe src= "" ></iframe></noscript>
--------------------------------------------------------

The following is the right key to prevent JS:

Copy Code code as follows:

<script language= "JavaScript" >

<!--
if (window. Event)
Document.captureevents (Event.mouseup);
function Nocontextmenu () {
Event.cancelbubble = True
Event.returnvalue = false;
return false;
}
function Norightclick (e) {
if (window. Event) {
if (E.which = 2 | | e.which = 3)
return false;
}else{
if (Event.button = 2 | | event.button = = 3) {
Event.cancelbubble = True
Event.returnvalue = false;
return false;
}
}
}

Document.oncontextmenu = Nocontextmenu; For ie5+
Document.onmousedown = Norightclick; For all others
-->
</script>

<title>css prohibit selection and replication </title>
<meta http-equiv= "Content-type" content= "text/html;charset=gb2312" >
<style>
body{
-moz-user-select:none;
Hutia:expression (This.onselectstart=function () {return (FALSE)});
}
</style>
<body>
Here is the page content, try you can copy?
</body>


application Example:
Copy Code code as follows:

<title>js Control Page </title>
<script language= "javascript" type= "Text/javascript" >
Prevent users from using mail (hide right menu)
Document.oncontextmenu = function Forbidrightkey () {
Window.event.returnValue = false;
}
Prevent users from using mail (prompts the user to disable the right key)
function block () {
var oevent;
if (window.event)
Oevent = window.event;
if (Oevent.button = 2)
Alert ("right mouse button not available");
}
Document.onmousedown = Block;

When the user presses the AltF4, prompts to close the window information
function AltF4 () {
if (window.event.altKey && window.event.keyCode = 115) {
Window.close ();
}
}
Alt left mouse button to make the shortcut key select the content in the text box to call the way <body onkeydown= "altF4 ();" >
function Gettxtselect (Eventcontrol) {
if (Eventcontrol.altkey) {
document.getElementById ("Txt1"). Select ();
}
}

function Cleartxtbyinput () {
document.getElementById ("Txtcontent"). Value = "";
}

function Filltxtbyinput () {
document.getElementById ("Txtcontent"). Value = "Input search condition";
}
Disables a few keys on the keyboard to invoke onkeydown= "Forbidkeys ();"
function Forbidkeys () {
var content = Window.event.keyCode;
if (content >= && content <= 68) {
Window.event.returnValue = false;
} else {
Window.alert (content);
}
}

Prohibit copying of Web page content <body oncopy= "forbidcopy ();" >
function Forbidcopy () {
Window.event.returnValue = false;
Window.clipboardData.setData ("Text", "");
Alert ("Prohibit copying Web content!") ");
}

Set up copy content to append the URL of this website
function Setcopycontent () {
Window.event.returnValue = false;
var content = Document.title + "/r/n";
Content + + document.getElementById ("Txt1"). Value + "/r/n";
Content + = "This resource comes from" + this.location.href;
Window.clipboardData.setData (' Text ', content);
Alert ("Copy successful, paste on your qq/msn to recommend to your friends");
}

Disable refreshing of F5 and Ctrl+f5
function Forbidfreshpage () {

            if (Window.event.ctrlKey && Window.event.keyCode = 116) | | Window.event.keyCode = = 116) {
                Window.event.keyCode = 0;
               Window.event.returnValue = false;
          }
       }
        document.onkeydown = forbidfreshpage;
       //Masking JS error
        function Killerrors () {
            return true;
       }
        window.onerror = Killerrors;


</script>
<body>
<form id= "Form1" runat= "Server" >
<div>
<input id= "Txt1" type= "text" value= "Hello world!" onclick= "Gettxtselect (event)"/>
<input type= "button" value= "Copy the value in the text box" onclick= "setcopycontent ();"/>
<input id= "txtcontent" value= "Enter search terms style=" Color:aqua "onclick=" cleartxtbyinput (); " Onblur= "Filltxtbyinput ();"/>
<p>content</p>

</div>
</form>
</body>

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.

Related Keywords:
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