Problem with displaying right form PHP company user / private user

fixed it

if (<?php echo $relation_type?>  == 1) 
  {

    window.onload = function() 
    {
        var x = document.getElementsByClassName("company");
        for (var i = 0; i < x.length; i++) {
            x[i].style.display = "none";
        }
    }
  }
    else if (<?php echo $relation_type?>  == 0)
    {
        window.onload = function() 
      {
        var x = document.getElementsByClassName("company");
        for (var i = 0; i < x.length; i++) {
            x[i].style.display = "";
        }
    }
}