document.onkeydown = mykeyhandler;
function mykeyhandler(e) {

	var myEvent = (window.event != null) ? window.event : e;

  if(myEvent.altKey&&(myEvent.keyCode==37) || myEvent.ctrlKey&&(myEvent.keyCode==78) || myEvent.altKey&&(myEvent.keyCode==39) || myEvent.ctrlKey&&(myEvent.keyCode==85)){
     alert("Función no permitida");
     return false;
  }
//		alert(myEvent.keyCode);
  if(myEvent.keyCode >= 112 && myEvent.keyCode <= 123){
     alert("Función no permitida");
     return false;
  }

  if ((myEvent && myEvent.keyCode == 116) || (myEvent && myEvent.keyCode == 122)) {
     myEvent.cancelBubble = true;
     myEvent.keyCode = 8;
     wmyEvent.returnValue = false;
     return false;
  }
}
/*
if (window.top.name != "pedidos") {
	alert("Copyright &copy; 2006 Septimoarte. Todos los derechos reservados. Su direccion ha sido enviada al administrador");
	location = "index.php?view=vistas/es_ES/index.php";
}
*/
function clickIE4(){
	if (event.button==2){
		return false;
	}
}

function clickNS4(e){
	if (document.layers||document.getElementById&&!document.all){
		if (e.which==2||e.which==3){
			return false;
		}
	}
}

if (document.layers){
	document.captureEvents(Event.MOUSEDOWN);
	document.onmousedown=clickNS4;
} else if (document.all&&!document.getElementById){
	document.onmousedown=clickIE4;
}

document.oncontextmenu=new Function("return false");

function click(e) {
if (document.all) {
if (event.button == 2) {
			alert("Copyright © 2006 Septimoarte. Todos los derechos reservados.");
return false;
}
}
if (document.layers) {
if (e.which == 3) {
			alert("Copyright © 2006 Septimoarte. Todos los derechos reservados.");
return false;
}
}
}
if (document.layers) {
document.captureEvents(Event.MOUSEDOWN);
}
document.onmousedown=click;