how to avoid pringting a json alphabetically?
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I´m building a json with javascript, so here is my json:

    							catalogoJSON = {
								condicion: condicionCatalogos0,
								tipo: tipoCatalogos0,
								idCatalogo: idCatalogo0,
								valor: valorCatalogos0
							};

But when i print it with firebug i get my json properties printed alphabetically like this:
     
    {
	    condicion: condicionCatalogos0,
	    idCatalogo: idCatalogo0,
	    tipo: tipoCatalogos0,
	    valor: valorCatalogos0
    }

Is there a way in javascript to get back my json with it´s properties in the order that i declare them, without having to change my properties names????

Thanks in advance.