function checkKeyCode(evt)
{
//alert("HAI");
var evt = (evt) ? evt : ((event) ? event : null);
var node = (evt.target) ? evt.target : ((evt.srcElement) ? evt.srcElement : null);
//alert(evt.keyCode);

if(event.keyCode==116)
{
evt.keyCode=0;
alert("Sorry! This key[F5] function Was Disabled!!");
return false
}
if(event.keyCode==122)
{
evt.keyCode=0;
alert("Sorry! This key[F11] function Was Disabled!!");
return false
}
if(event.keyCode==8)
{
evt.keyCode=0;
alert("Sorry! This key[back] function Was Disabled!!");
return false
}
if(event.keyCode==17)
{
evt.keyCode=0;
alert("Sorry! This key[ctrl] function Was Disabled!!");
return false
}
if(window.event.ctrlKey)
{
evt.keyCode=0;
alert("Sorry! This [ctrl+]key function are Disabled!!");
}


//if (event.ctrlKey &&(keyCode == 78 || keyCode == 82)) 
 //        {
                // When ctrl is pressed with R or N<br>
     //           evt.keyCode=0;
   //       }
	//alert(evt.keyCode);
	shortcut.remove("Ctrl+N");
	return false;

}
function rightclick()
{
alert("Sorry! Right Click Option Was Disabled!!");
return false;

}