// JavaScript Document

<!-- 禁止选择文本： --> 
var omitformtags=["input", "textarea", "select"]
omitformtags=omitformtags.join("|")
function disableselect(e){ 
if (omitformtags.indexOf(e.target.tagName.toLowerCase())==-1) 
return false 
}
function reEnable(){ 
return true 
}
if (typeof document.onselectstart!="undefined") 
document.onselectstart=new Function ("return false") 
else{ 
document.onmousedown=disableselect 
document.onmouseup=reEnable 
} 

<!-- 禁用右键: -->
function stop(){ 
return false; 
} 
document.oncontextmenu=stop; 

<!--功能：禁止右键、禁选择、禁粘贴、禁shift、禁ctrl、禁alt-->
//function key(){ 
//if(event.shiftKey){
//window.close();}
////禁止Shift
//if(event.altKey){
//window.close();}
////禁止Alt
//if(event.ctrlKey){
//window.close();}
////禁止Ctrl
//return false;}
//document.onkeydown=key;
//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;}
//}
//禁右键
document.oncontextmenu = nocontextmenu;   // for IE5+
document.onmousedown = norightclick;   // for all others