if (isset($_GET['valor']))
{
	    $evento=$_GET['valor'];

		if($evento=="createXML")
		{
			$ls_codcar="%%";
			$ls_descar="%%";
			$ls_codnom="%%";
	
		    header('Content-type:text/xml');
			print $io_cargo->uf_srh_buscar_requerimiento_cargo($ls_codcar,$ls_descar,$ls_codnom);
		}
		
		elseif($evento=="buscar")
		{
			$ls_codcar="%".utf8_encode($_REQUEST['txtcodcar'])."%";
			$ls_descar="%".utf8_encode($_REQUEST['txtdescar'])."%";
			$ls_codnom="%".utf8_encode($_REQUEST['txtcodnom'])."%";
				
			header('Content-type:text/xml');
			print $io_cargo->uf_srh_buscar_requerimiento_cargo($ls_codcar,$ls_descar,$ls_codnom);
		}