Te doy un ejemplo que tengo:
Código PHP:
echo "<script>\n";
echo "var subrub = new Array\n";
echo "var subrubros_val = new Array\n";
$query = "SELECT id FROM rubros ORDER BY nombre" ;
$getRubros = hyt_query($query);
$cantRubros = hyt_numrows($getRubros);
echo "subrub[0] = ['Sub-Actividad']\n";
echo "subrubros_val[0] = ['']\n";
for($i=1; $i<$cantRubros; $i++){
$query = "SELECT * FROM subrubros WHERE id_rubro = ".mysql_result($getRubros, ($i-1), 0);
// $query = "SELECT * FROM subrubros WHERE id_rubro = ".mysql_result($getRubros, ($i-1), 0) . " ORDER BY nombre";
$getSubrubros = hyt_query($query);
$txt = "";
$txt_val = "";
while($rs = hyt_fetch_array($getSubrubros)){
$txt = $txt. ",'". $rs['nombre']."'";
$txt_val = $txt_val . ",'". $rs['id']."'";
}
echo "subrub[$i] = ['Sub-Actividad'".$txt."]\n";
echo "subrubros_val[$i] = [''".$txt_val."]\n";
}
echo "</script>\n";