function enviar_pag(pag,destino){
		document.getElementById('pag').value=pag;
		document.getElementById('formu_pag').action=destino;
		document.getElementById('formu_pag').submit();
}
function sobre_bot(id){
	var bot="bnp_on_"+id;
	var bot2="bnp_off_"+id;
	document.getElementById(bot).className="img_bot_off";
	document.getElementById(bot2).className="img_bot_on";
}
function fuera_bot(id){
	var bot="bnp_on_"+id;
	var bot2="bnp_off_"+id;
	document.getElementById(bot).className="img_bot_on";
	document.getElementById(bot2).className="img_bot_off";
}