This is version 2 of my previous tutorial which was dynamic loading of combos with Ajax. But its much more than that. Its now for n-level dropdowns, I mean if you have parent-child records untill n-level and you want to load them using dropdowns with ajax. It is my favorit tutorial and very useful for any one. We often needs ajax loading of dropdowns and this is for n-level records. Hope you will like it. Cheers !