下面用java

<script language="JavaScript">
<!--
//***********************禁止右键***************************
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;
  }
}

//************************禁止选择***************************
function noSelect()
{
         return false;
}

//************************禁止拖曳***************************
function noDragstart()
{
  return false;        
}

//************************清空剪切板*************************
function keyDown()
{
  var iekey = event.keyCode;
  //alert(iekey);
    if(iekey == 42)
    {
    //window.clipboardData.setData('img','')
        
         window.clipboardData.clearData();
    }
}

//-->
</script>

<!--禁止网页另存为-->