Well jquery-ui solves this problem to a large extent, if you want something like say a datepicker you can do $("#datepickerelement" ).datepicker(); and get th

Well jquery-ui solves this problem to a large extent, if you want something like say a datepicker you can do $("#datepickerelement" ).datepicker(); and get the functionality you need in a nice reusable package without having to copy and paste giant chunks of code and pollute your global namespace.