function DetikScrollTracker(data)

function DetikScrollTracker(data){
this.urlHit= data.urlHit;
this.urlHitOdetik= data.urlHitOdetik;
this.divs= data.divs;
this.file_request= data.file_request;
this.hit = new Array();
this.topPosition= new Array();
this.urlHit= data.urlHit;
this.divs= data.divs;
this.file_request= data.file_request;
this.hit = new Array();
this.topPosition= new Array();
for(i=0; i<this.divs.length; i++){
div_name = this.divs[i];
this.hit[div_name] = 1;
}
this.run = function(div_name)
{
if(this.hit[div_name] == 1){
    var docViewTop = $(window).scrollTop();
    var docViewBottom = docViewTop + $(window).height();
    var elemTop = $('.' + div_name).offset().top;
    var elemBottom = elemTop + $('.' + div_name).height();
    if( ((elemBottom >= docViewTop) && (elemTop <= docViewBottom)
      && (elemBottom <= docViewBottom) &&  (elemTop >= docViewTop) )
  ) {this.hit[div_name]= -1;
if(this.urlHitOdetik != ""){
$("." + div_name).append('<img style="display: none" src="' + this.urlHitOdetik + div_name +this.file_request + '">');
}
$("." + div_name).append('<img style="display: none" src="' + this.urlHit + div_name + this.file_request + '">');
console.log("tracker : " + div_name);
}
}
}
}

 <div class="vote_pk">
        <div class="vpk_l">Pro</div>
        <div style="width:123px;" class="bar_1">82%</div>
        <div class="clearfix"></div>
        <div class="vpk_l">Kontra</div>
        <div style="width:27px;" class="bar_2">18%</div>
        <div class="clearfix"></div>
    </div>
    <ul class="comment_pk">
       
    </ul>
</div>