What's the best way to replace links with JS functions?

Question

A pattern that\'s started to show up a lot in one of the web apps I\'m working are links that used to just be a regular a-tag link now need a popup box asking \"are you sure?\"

Answer 1

If you are using jQuery you would do:

jQuery(document).ready(
    jQuery("a").click(){
        //you'd place here your extra logic
        document.location.href = this.href;
    }
);