Limiting number of selection user can check from a group of checkboxes by using JavaScript

Nice video ! ... Can you please guide how to do this with dropdowns...?

what is document.form1.ckb mean? why you aren't put these things to some variables?

How can i do that with getElementById ;-;

I have an question? ;-;

Very nice!! Simple and functional solution!! Thanks for this video!!

Awesome! Can you make a tutorial on how to add all the values (e.g. price) of selected checkboxes and display their name in a form of list?