function adjust(){
    var left_coll = document.getElementById('left-inner').scrollHeight;
    var right_coll = document.getElementById('right-inner').scrollHeight;
    
    if(left_coll > right_coll){
        document.getElementById('right-inner').style.height = left_coll + "px";
    }
    if(left_coll < right_coll){
        document.getElementById('left-inner').style.height = right_coll + "px";
    }
}