// ************************************************************************************
// Popups
// ************************************************************************************
function abrirPopup(url, ancho, alto)
{
	ancho = "" + ancho;
	if (ancho.indexOf("%") != -1)
	{
		var porcentaje = parseInt(ancho, 10);
		ancho = screen.width * porcentaje / 100;
	}
	alto = "" + alto;
	if (alto.indexOf("%") != -1)
	{
		var porcentaje = parseInt(alto, 10);
		alto = screen.height * porcentaje / 100;
	}
	var x = (screen.width - ancho) / 2;
	var y = (screen.height - alto) / 2;
	var w = window.open(url, "Popup", "toolbar=0,location=0,directories=0,status=0,menubar=0,scrollbars=0,resizable=0,copyhistory=0,width=" + ancho + ",height=" + alto + ",left=" + x + ",top=" + y, "");
	w.focus();
}