trigger doIn() only once per element

[oozrafa]

Is there any way to remove onScreen from a specific element?
For example, my page is divided into sections and they all have the same class 'log_entered_viewport'. What I want is that only the first time they enter the viewport that onScreen will be triggered and I will log the event. If the users scrolls up and down the page and the particular section enters the viewport, then I only want it to be triggered once.

[oozrafa]

That was quick :) Solved it by adding a 'logged' class to the element and then checking for the class.
In other words, it's like the 'toggleClass' option, except that the class is removed.

doIn: function() {

        $e = $(this);

        if ( !$e.hasClass('logged') ){

            // -- code to log that the element has entered the viewport

                            // add the class the mark that the element has been logged
            $e.addClass('logged');

        }

   }

[silvestreh]

heh, I was going to suggest something along those lines