function include_dom(script_filename) {
		var html_doc = document.getElementsByTagName('head').item(0);
		var js = document.createElement('script');
		js.setAttribute('language', 'javascript');
		js.setAttribute('type', 'text/javascript');
		js.setAttribute('src', script_filename);
		html_doc.appendChild(js);
		return false;
	}

	include_dom("../libreria/js/lib.x.js");
	include_dom("../libreria/js/lib.diseno.js");
	include_dom("../libreria/js/lib.fechas.js");
	include_dom("../libreria/js/lib.formularios.js");
	include_dom("../libreria/js/lib.numeros.js");
	include_dom("../libreria/js/lib.string.js");
	include_dom("../libreria/js/lib.validaciones.js");
	include_dom("../libreria/js/lib.funciones.js");