////禁止右键、选取、ctrl
//function click() {
//return false;}
//function click1(){if (event.button==2) {return false; }}
//function CtrlKeyDown(){
//if (event.keyCode==67&&event.ctrlKey)
//{
//   clipboardData.setData('text','');
//   return false; 
//}
//}
//document.onkeydown=CtrlKeyDown;
//document.onselectstart=click;
//document.onmousedown=click1;

//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 

//////100毫秒清空粘贴板
////var interval
////window.onfocus=function(){interval=window.setInterval("clipboardData.setData('text','')",100);}
////window.onblur=function(){window.clearInterval(interval);}

////禁止查看源代码