private boolean linkPresentForFrame(){
        //checking if rectangle is already present for the selected hyperlink on the current frame
        String linkSelected = jList2.getSelectedValue().toString();
        
        for(int i=0; i<hyperLinks; i++){
            if(metaRecords.get(i).rectName.equals(linkSelected)){
                for(int j=0; j<metaRecords.get(i).numOfKeyFrames; j++){
                    KeyFrame k = metaRecords.get(i).kf.get(j);
                    if(k.frameNum==jSlider1.getValue())
                        return true;
                }
            }
        }
        return false;
    }