var copyright="© Aqua Technologies (Pvt) Ltd. All rights reserved.";

function chek_button(){
if (event.button==2){
	alert(copyright);
	return false;
	}
}

function chek_button_other(e){
if (document.layers||document.getElementById&&!document.all){
	if (e.which==2||e.which==3){
	alert(copyright);
	return false;
	}
  }
}

if (document.layers){
	document.captureEvents(Event.MOUSEDOWN);
	document.onmousedown=chek_button_other;
	}
	
else if (document.all&&!document.getElementById){
		document.onmousedown=chek_button;
		}
document.oncontextmenu=new Function("alert(copyright);return false")