text toevoegen aan een var

function onOK() {
  var required = {
    "f_url": "You must enter the URL"
  };
  for (var i in required) {
    var el = document.getElementById(i);
    if (!el.value) {
      alert(required[i]);
      el.focus();
      return false;
    }
  }
  // pass data back to the calling window
  var fields = ["f_url", "f_alt", "f_align", "f_border", "f_horiz", "f_vert"];
  var param = new Object();
  for (var i in fields) {
    var id = fields[i];
    var el = document.getElementById(id);
    param[id] = el.value;
  }
  __dlg_close(param);
  return false;
};

function onOK() {
  var required = {
    "f_url": "You must enter the URL"
  };
  for (var i in required) {
    var el = document.getElementById(i);
    if (!el.value) {
      alert(required[i]);
      el.focus();
      return false;
    }
  }
  // pass data back to the calling window
  var fields = ["f_url", "f_alt", "f_align", "f_border", "f_horiz", "f_vert"];
  var param = new Object();
  for (var i in fields) {
    var id = fields[i];
    var el = document.getElementById(id);
    param[id] = el.value;
  }
  __dlg_close(param);
  return false;
};