window.ClearEvent=function()
{
event.cancelBubble=false;
var sSrcTagName=event.srcElement.tagName.toLowerCase();
return (sSrcTagName=="textarea" || sSrcTagName=="input" || sSrcTagName=="select");
}
window.ClearKey=function()
{
event.cancelBubble=false;
var iKeyCode=event.keyCode;
return !(iKeyCode==78 && event.ctrlKey);
}
with (window.document)
{
oncontextmenu=onselectstart=ondragstart=window.ClearEvent;onkeydown=window.ClearKey;
}