Jquery code makes page jump

I created a code (with the help of someone on this very site) and now whenever I go to the bottom of the page, the page itself jumps back up about 20px or so… and here is the code…

function blinkAnim(obj, speed){
    obj.fadeOut(speed, function(){
        obj.fadeIn(speed, function(){
          blinkAnim(obj, speed);  //Recursively call this function
    blinkAnim( $('.glow'), 1000 );

anybody know why it jumps, or is it even a jQuery problem?

Fixed the problem, just added an absolute positioning to the glow class