video html5: Is it possible to display thumbnail from video on a specific time?

Question

I use this to have a video player on browser

Answer 1

I did it this way:

It jumps to 0 if the currentTime is 15, but will go over the 15s mark when played

html:

javascript:

function goToStart(){
    if (document.getElementById('video1').currentTime == 15){
    document.getElementById('video1').currentTime = 0;
    }
}