var isEnabled = true;


function scrollerz(){
	

    if(!isEnabled) return;
    
    var obj = document.getElementById('skrollitav');
    var offset = document.body.scrollTop;    
    var threshold = 275;
    



    if(offset>threshold){
        obj.style.top = offset-threshold + "px";
    } else {
        obj.style.top = "0px";
    }
    
}