//desabilita mouse
function click(e) {
	if (document.all) 		{
		if (event.button==2||event.button==3) 	{
			oncontextmenu='return false'; 	}
	}
	if (document.layers) 	{
		if (e.which == 3) {
			oncontextmenu='return false'; 	}
	}
	if (document.layers) 	{
		document.captureEvents(Event.MOUSEDOWN);	}
		}
document.onmousedown=click;
document.oncontextmenu = new Function("return false;");

//desabilita seleção de texto. 
/**/
if (document.all)
document.onselectstart = function() {return false;}; 
/**/