Question

How can I detect in javascript if the user is scrolling?

Answer 1

this works:

window.onscroll = function (e) {  
// called when the window is scrolled.  
} 

edit:

you said this is a function in a TimeInterval..
Try doing it like so:

userHasScrolled = false;
window.onscroll = function (e)
{
    userHasScrolled = true;
}

then inside your Interval insert this:

if(userHasScrolled)
{
//do your code here
userHasScrolled = false;
}