if (typeof document.oncontextmenu == "object") {

	if (document.all) {

		document.onmousedown = captureMousedown;

	}

	else {

		document.oncontextmenu = captureMousedown;

	}

}

else {

	window.oncontextmenu = captureMousedown;

}



function captureMousedown(evt) 

{

	var mouseClick = (evt) ? evt.which : window.event.button;

	

	if (mouseClick==2 || mouseClick==3) 

	{

		alert("Menu Disabled");

		return false;

	}

}