function submenu(id, accion ) {
	id="sub"+id;    		
	if(accion == "v"){
		document.getElementById(id).style.visibility="visible";
		ocultarSubmenus(id);
	}
	else if(accion == "h")
		document.getElementById(id).style.visibility="hidden";	
}

function ocultarSubmenus(id){
	if(id=="sub1"){
		document.getElementById("sub4").style.visibility="hidden";
		document.getElementById("sub5").style.visibility="hidden";
		document.getElementById("sub6").style.visibility="hidden";
		document.getElementById("sub7").style.visibility="hidden";
		document.getElementById("sub8").style.visibility="hidden";
		document.getElementById("sub9").style.visibility="hidden";
	}
	else if(id=="sub4"){
		document.getElementById("sub1").style.visibility="hidden";
		document.getElementById("sub5").style.visibility="hidden";
		document.getElementById("sub6").style.visibility="hidden";
		document.getElementById("sub7").style.visibility="hidden";
		document.getElementById("sub8").style.visibility="hidden";
		document.getElementById("sub9").style.visibility="hidden";
	}
	else if(id=="sub5"){
		document.getElementById("sub1").style.visibility="hidden";
		document.getElementById("sub4").style.visibility="hidden";
		document.getElementById("sub6").style.visibility="hidden";
		document.getElementById("sub7").style.visibility="hidden";
		document.getElementById("sub8").style.visibility="hidden";
		document.getElementById("sub9").style.visibility="hidden";
	}
	else if(id=="sub6"){
		document.getElementById("sub1").style.visibility="hidden";
		document.getElementById("sub4").style.visibility="hidden";
		document.getElementById("sub5").style.visibility="hidden";
		document.getElementById("sub7").style.visibility="hidden";
		document.getElementById("sub8").style.visibility="hidden";
		document.getElementById("sub9").style.visibility="hidden";
	}
	else if(id=="sub7"){
		document.getElementById("sub1").style.visibility="hidden";
		document.getElementById("sub4").style.visibility="hidden";
		document.getElementById("sub5").style.visibility="hidden";
		document.getElementById("sub6").style.visibility="hidden";
		document.getElementById("sub8").style.visibility="hidden";
		document.getElementById("sub9").style.visibility="hidden";
	}
	else if(id=="sub8"){
		document.getElementById("sub1").style.visibility="hidden";
		document.getElementById("sub4").style.visibility="hidden";
		document.getElementById("sub5").style.visibility="hidden";
		document.getElementById("sub6").style.visibility="hidden";
		document.getElementById("sub7").style.visibility="hidden";
		document.getElementById("sub9").style.visibility="hidden";
	}
	else if(id=="sub9"){
		document.getElementById("sub1").style.visibility="hidden";
		document.getElementById("sub4").style.visibility="hidden";
		document.getElementById("sub5").style.visibility="hidden";
		document.getElementById("sub6").style.visibility="hidden";
		document.getElementById("sub7").style.visibility="hidden";
		document.getElementById("sub8").style.visibility="hidden";
	}
}

function soloNumeros( e ) {
	//var tecla_codigo = (document.all) ? e.keyCode : e.which;
	var tecla_codigo =  e.keyCode;
	if(tecla_codigo == 0)
		tecla_codigo =  e.which;

	var patron = /[0-9]/;

	if( tecla_codigo == 8 || tecla_codigo == 13 || tecla_codigo == 9 || tecla_codigo == 46 || tecla_codigo == 37 || tecla_codigo == 39)
		return true; 

	tecla_valor = String.fromCharCode( tecla_codigo );
	return patron.test( tecla_valor );
}