Javascript屏蔽F5，刷新，右键，Alt键

singlerwong| 2008-05-19 17:04:43 阅读：5691

function DisableF5(){
with (event){
// F5 and Ctrl+R
if(keyCode==116|| (ctrlKey && keyCode==82)){
event.keyCode =0;
event.cancelBubble =true;
returnfalse;
}
}
}
document.onkeydown = DisableF5;

function DisableF5(){ with (event){ // F5 and Ctrl+R if (keyCode==116 || (ctrlKey && keyCode==82)){ event.keyCode = 0; event.cancelBubble = true; return false; } } } document.onkeydown = DisableF5;

function document.onkeydown()
{
if((event.keyCode==8) ||//屏蔽退格删除键
(event.keyCode==116)||//屏蔽 F5 刷新键
(event.ctrlKey && event.keyCode==82)){//Ctrl + R
event.keyCode=0;
event.returnValue=false;
}
}

function document.onkeydown() { if ((event.keyCode==8) || //屏蔽退格删除键 (event.keyCode==116)|| //屏蔽 F5 刷新键 (event.ctrlKey && event.keyCode==82)){ //Ctrl + R event.keyCode=0; event.returnValue=false; } }

一， js屏蔽浏览器（IE和FireFox）的刷新功能

document.onkeydown=function()
{
if((window.event.keyCode==116)||//屏蔽 F5
(window.event.keyCode==122)||//屏蔽 F11
(window.event.shiftKey && window.event.keyCode==121)//shift+F10
)
{
window.event.keyCode=0;
window.event.returnValue=false;
}
if((window.event.altKey)&&(window.event.keyCode==115))
{
//屏蔽Alt+F4
window.showModelessDialog("about:blank","","dialogWidth:1px;dialogheight:1px");
returnfalse;
}
}

document.onkeydown=function() { if ((window.event.keyCode==116)|| //屏蔽 F5 (window.event.keyCode==122)|| //屏蔽 F11 (window.event.shiftKey && window.event.keyCode==121) //shift+F10 ) { window.event.keyCode=0; window.event.returnValue=false; } if ((window.event.altKey)&&(window.event.keyCode==115)) { //屏蔽Alt+F4 window.showModelessDialog("about:blank","","dialogWidth:1px;dialogheight:1px"); return false; } }

二， js屏蔽浏览器右键功能

if(window.Event)
document.captureEvents(Event.MOUSEUP);
function nocontextmenu()
{
event.cancelBubble =true
event.returnValue =false;
returnfalse;
}
function norightclick(e){
if(window.Event){
if(e.which ==2|| e.which ==3)
returnfalse;
}
else
if(event.button ==2|| event.button ==3){
event.cancelBubble =true
event.returnValue =false;
returnfalse;
}
}
document.oncontextmenu = nocontextmenu;// for IE5+
document.onmousedown = norightclick;// for all others

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