If you have a huge dataset with complex validation rules, implement a server side validation engine, and do the same in client side and expose the rules to both

If you have a huge dataset with complex validation rules, implement a server side validation engine, and do the same in client side and expose the rules to both parties, it's not hard at all. jQuery is not only about the DOM, it's a tool, it doesn't force you to write code like this: $('#foo').hide();$("#foo").css('color':'white'); You can write very clean structured code in JavaScript using jQuery.