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if (window.Event) 
document.captureEvents(Event.MOUSEUP); 
function nocontextmenu(){ 
event.cancelBubble = true 
event.returnValue = false; 
return false; 
} 
function norightclick(e){ 
if (window.Event){ 
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} 
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 
//--> 
function disableselect(e){
return false}

//去除网页嵌套
if (top.location != self.location)top.location=self.location;

//鼠标滚轮
//window.onload=function(){ 
////document.onmousewheel = function(){return false;} 
//document.onmousewheel = function(){if(event.ctrlKey) return false;} 
//}

//function reEnable(){return true
//}
////file://if IE4+
//document.onselectstart=new Function ("return false")
////file://if NS6
//if (window.sidebar){
//document.onmousedown=disableselect
//document.onclick=reEnable
//}